DIY SCHEMATICS

 

MY DESIGN

 
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My Sister 300 Watt SIT Super Circlotron integrated amplifier                                       MY_SISTER_SIT_Super_Circlotron_2SK180.JPG                                        

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100 Watt Circlotron amplifier with Tokin SIT 2SK180                                                 SIT CIRCLOTRON AMP 100.bmp

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50 Watt V-Fet push pull amp with 2SK70 2SJ20                                                         V-fet complementary 2SK70_2SJ20.bmp

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50 Watt V-Fet push pull amp with 2SK82 2SJ28 vers. A                                     V-fet complementary 2SK82_2SJ28_Ver_A.bmp

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50 Watt V-Fet push pull amp with 2SK82 2SJ28 vers. B                                             V-fet complementary 2SK82_2SJ28_Ver_B.bmp

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50 Watt V-Fet push pull amp with 2SK82 2SJ28 vers. C                                       V-fet complementary 2SK82_2SJ28_Ver_C.bmp

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12 Watt single-ended with Sony V-fet 2SJ28 2SK79                                                   2SJ28 SE AMP2.bmp

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50 W circlotron amplifier with Hitachi mosfet 2SK1058                                                CIRCLOTRON_50W.bmp

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50 W class A amplifier with Sanken transistor 2SC3264                                               Class-A.bmp

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Two stage line preamplifier with 76 and 7044 triodes                                                    76_preamplificatore.jpg

 

 

 

OTHER GREAT SCHEMATICS

SIT or Vfet

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SIT (static induction transistor) amplifier with TKS45F323 by Kamijo                       TKS45F323_amp.gif

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100 W amp with Vfet  2SK60 2SJ18                                                                       2sk60 amp No-10.gif   

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Single ended SIT amplifier with 2SK180 by Shinichi Kamijo                                     2SK180_0.gif

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Zen V. 9 amp with Power JFet LU1014D by Nelson Pass                                        Zen V9.jpg

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Circlotron amp with hybrid V-fet 2SK79/2SK312                                                    2sk79 K312-3 amp.png

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Current/voltage DAC converter with V-fet 2SK79                                                    2SK79 Trans_IV-2.png

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V-fet amplifier 2SK60                                                                                              V-FET-77.gif

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V-fet amplifier 2SK82                                                                                              VFET_2SK82_AMP.gif

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Yamaha model B1 amplifier with V-fet 2SK77                                                         YAMAHA B-1.gif

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Amplifier V-fet Sony TA 4650 with 2SJ18/2SK60                                                   Sony TA 4650.pdf                                                       

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V-fet amplifier Hiraga  with NEC 2SK70/2SJ20                                                       hiraga2_Vfet.gif  

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V-fet amp Yamaha B2 with 2SK76/2SJ26                                                               YamahaB2_Circuit.pdf

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Vfet amplifier Sony TAN 7B with 2SK60/2SJ18  in cascade connection                   Sony TA-N7B.JPG

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Vfet amp Sony TAN 5550 with a pair of 2SK60/2SJ18                                           TAN-5550 service manual circuit diagram.jpg

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V-fet amp 2SK60/2SJ18 by Furukawa                                                                    VFETAMP2.gif 

  

Tubes  

                                                                                                   
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Klimo  preamplifier                                                                                                    Klimo.jpg

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Radford STA15 amp                                                                                                radfordsta15.gif

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Audio Research SP8 preamp                                                                                    AudioResearch_SP8.zip

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Single ended tube amplifier with Western Electric 212                                                212 amp.bmp

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Push-pull amplifier with 845 tubes for Altec systems by Sakuma                                 845PP_1.GIF

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Single ended amplifier with PX25                                                                               power px25v1.jpg

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Single ended amplifier with DHT 845                                                                         845cir.pdf

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T-Rex  amplifier  300B                                                                                              T-REX amp.jpg

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Audio Research SP6-C preamplifier                                                                          Audio Research SP-6C.bmp

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Monotriode amplifier 2A3                                                                                         2a3schem_1_s.gif

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Balanced Audio Technologies BAT 5 amplifier                                                           Bat5.jpg

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Super Triode Connection amp with 6463 and 7044 tubes                                           7044_fx.gif 

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OTL amp by Alan Kimmel                                                                                         FIGURE2.JPG

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Single ended 845 amplifier                                                                                          845_4.GIF

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I/V DAC  tube converter                                                                                            Trans_IV-3.png 

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Audio Note 2A3 amp model Neiro                                                                            audionoteneiro.pdf

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Stromberg Carlson ASE-8 with 7355 output tubes                                                     stromberg-carlson-ase8-amplifier-schematic.pdf

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Audio Note 845 amp  model Ankoru                                                                         audionoteankoru.gif

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Dynaco SCA 35 with 6BQ5                                                                                      dynaco-sca35-vacuum-tube-power-amplifier.pdf

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Marantz 9 amp                                                                                                           marantz9.gif

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Conrad Johnson PV5 tube preamp                                                                             conrad-johnson-pv-5-tube-preamp.pdf

bulletRCA 25 Watt OTL Tube amplifier                                                                             RCA otl amp.bmp                                                         
bulletAudio Innovation 25  tube amp                                                                                   audioinnovationclassicstereo25.gif
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Marantz 8  amp                                                                                                          marantz8.gif

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Leak TL 12 point one amp                                                                                         Leak TL12.bmp

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Conrad Johnson PV12 tube preamp                                                                           conrad-johnson-pv12-pre-amplifier.pdf-schematic.pdf

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Leak TL 10 point one amp                                                                                         Leak TL10.bmp

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Fourier Components SP1 tube preamp                                                                       fourier-components-sp1-schematic.zip

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McIntosh MC-240 with 6L6/7027                                                                             McIntosh MC240.bmp

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Radford STA 100 amp                                                                                               radfordsta100.gif

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Conrad Johnson PV10                                                                                               conrad-johnson-pv10a-pre-amplifier-schematic.pdf

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Quad II amp                                                                                                              quadmodel2.jpg

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Harman Kardon Citation 2 amp                                                                                  harmonkardoncitation2.gif

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Altec A340 amp                                                                                                         A340A.GIF

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Audible Illusion Mini Mite preamplifier                                                                        Audible Illusion mini mite.bmp

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Conrad Johnson PV6                                                                                                 conrad-johnson-pv6-pre-amplifier-schematic.pdf                                          

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Futterman OTL-2                                                                                                       futterman-otl-2-power-amplifier-schematic.pdf

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Kalamazoo 600                                                                                                          kalamazoo-600-amplifier-schematic.pdf

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Nyal 12B4's OTL                                                                                                       NYAL original futterman.bmp

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Silvertone 1472 push pull amp                                                                                     silvertone-1472-amplifier-schematic.pdf

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Silvertone 1585 amp                                                                                                   silvertone-1485-amplifier-schematic.pdf

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Conrad Johnson PV12                                                                                                conrad-johnson-pv12-pre-amplifier.pdf-schematic.pdf

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Dynaco Mark 3 amp                                                                                                  dynacomark3.gif

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Marantz 7C preamplifier                                                                                             Marantz_7C.zip

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Audio Research SP3-A preamplifier                                                                           Audio Research SP-3A.bmp

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Knight A-KB85 push-pull tube power amp with EL37                                                Knight_a_kb85_schema.gif

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Copland CTA 505 valve amp                                                                                     copland-cta-505-power-amplifier-service-manual.pdf

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Audio Research LS-22 preamplifier                                                                            audio-research-ls22-preamp-schematic-diagram.pdf

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Jolida SJ302/SJ502 integrated tube amp with EL34/KT88                                          jolida-sj-302a-sj-502a-amplifier-schematic.pdf

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Knight 10W 6V6 push-pull tube power amp                                                               Knight 10W.bmp

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Conrad Johnson PV10 tube preamp                                                                            conrad-johnson-pv10a-pre-amplifier-schematic.pdf

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McIntosh MC-275 with 6550                                                                                     McIntosh MC275.bmp

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Copland CTA 401 tube amp                                                                                       copland-cta401-integrated-amplifier-schematic.pdf

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Stromberg Carlson AP-80 with 6550                                                                          stromberg-carlson-ap80-amplifier-schematic.pdf

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Counterpoint SA 3.1                                                                                                  counterpoint-sa-3-1-preamplifier-service-manual.pdf

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McIntosh MC-3500                                                                                                   McIntosh MC3500.bmp

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Dynaco Dynakit Mark 3 60 Watt tube power amplifier DIY instructions                      dynaco-dynakit-mk3-60w-amplifier.pdf

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Marantz 9                                                                                                                   Marantz 9.bmp

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Dynaco ST 70 with EL34                                                                                           dynaco-st-70-schematic.pdf

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Fourier Components Sans Pareil MK3 tube OTL power amplifier                               fourier-components-sans-parallel-mkiii-power-amplifier-schematic.pdf

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Kondo 300PSE                                                                                                          Kondo_300PSE.bmp

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Kalamazoo Model one single ended power amplifier                                                    kalamazoo-model-1-amplifier-schematic.pdf

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Silvertone 1300 with 6V6 push pull tubes                                                                    silvertone-1300-amp-circuit-diagram.pdf

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Futterman OTL3 tube power amplifier                                                                         futterman-otl-3-power-amplifier-schematic.pdf

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Jadis JA-80 tube power amp with KT88                                                                     jadis-ja80-power-amplifier-schematic.pdf

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Counterpoint SA 5.1                                                                                                  Counterpoint_SA_5_1.bmp

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Conrad Johnson PV6 tube preamp                                                                             conrad-johnson-pv6-pre-amplifier-schematic.pdf

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Knight 38K145 tube power amp with 5881                                                                Knight 38K145.bmp

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Audio Research SP10 preamplifier                                                                              Audio Research SP10.pdf

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Marantz 8-B                                                                                                               Marantz 8b.bmp

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McIntosh C-22 12AX7 tube preamplifier                                                                    mcintosh-c22-schematic.pdf

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Stromberg Carlson 35 integrated tube amp with 6BQ5                                                Stromberg_Carlson_35.pdf

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Sun Audio Model SV with output triode VT25                                                            sunvt25--new--.pdf

    Hybrids

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Hybrid amp with tubes and mosfet BUZ900P/BUZ905P                                             hyb_6463.jpg

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Hybrid amp with 5687 tube and Lundahl transformer                                                   lundahlcirc.jpg

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Kaneda 6C33C-B hybrid OTL amplifier                                                                     kaneda01.jpg

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Audio Research SP11 preamplifier                                                                              AudioResearch_SP11.zip

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Hybrid amp with lateral mosfet Hitachi 2SK1056                                                        2SK1056AMP.bmp

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Audio Research Classic 30 Fet-Tubes hybrid power amplifier                                     audio-research-classic30-power-amplifier-schematic.pdf

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Luxman Lv-105u hybrid amp with output mosfet 2SK405/2SJ115                              luxman-lv105u-integrated-amplifier-service-manual.pdf

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Nad 310 integrated amp with hybrid output BJT/MOSFET 2SB817/BUK555            nad-310-integrated-amplifier-schematic.pdf

 

   

                                                                             

Transistors BJT

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Treshold 800A amp with pair of 2N5878/2N5876 in cascade  output  stage                Threshold-800A-pwr-sch.pdf

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JC-2 preamplifier by J. Curl with complementary Jfet and BJT                                      jc-2 schematic.gif

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Single -ended phono preamp by Hiraga with 2SB737                                                   Hiraga 1 mc head.jpg

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Krell KSA 50 MK2 amp                                                                                             krell_ksa-50_mk2_original_schematic_2.jpg

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Renkus Heinz amp with complementary Toshiba transistor 2SC3281/2SA1302            P3500_3501.pdf

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JLH solid state amp by John Linsley Hood                                                                   jlhupdatefig2.gif

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Mark Levinson JC1-DC preamplifier with 2N4401/2N4403                                        Mark Levinson JC-1DC_ckt[1].pdf 

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Harman Kardon HK 725 preamp s.m.                                                                         harman_kardon_hk725_service.pdf 

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Harman Kardon HK 775 mono power amp  with 2SD845/2SB755                             harman_kardon_hk775_schematic.pdf                                       

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Stax DA100M amplifier with four complementary 2SC2525/2SA1075                         stax_da-100m_schematic.pdf

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Yamaha B6  amplifier with complementary 2SC2565/2SA1095 s.m.                            Yamaha-B6-pwr-sm.pdf                    

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Krell KSA 100 amplifier with output transistor Motorola MJ15024/MJ15025              Krell KSA100 EUR 1989.pdf

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Luxman L-530 amplifier with 2SC2526 and 2SA1076                                                 LUXMAN L-530.pdf

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Nakamichi PA7 amp with seven complementary 2SC3263/2SA1294                           NAKAMICHI PA7.PDF

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Mark Levinson ML2 amplifier  with complemetary 2N5684/2N5686     s.m.                Mark-Levinson-ML2-pwr-sm.pdf

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Onkyo Grand Integra M-510 amp with seven couples of 2SC2774/2SA1170  s.m.      Onkyo Grand Integra M-510 SM.pdf

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Harman Kardon Citation 24 with complementary 2SC3907 2SA1516                          hk-citation-24-power-amplifier-schematic.pdf

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Bryston 3B-4B-7B-8B amplifiers                                                                                 3B-8BST_BRYSTON_SCHEMATICS.pdf                                                                                   

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QSC 1080 amplifier with complementary 2SB554/2SD424                                         QSC 1080.pdf

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Classč DR5 preamp                                                                                                    DR5.zip

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Adcom 555 with pair 2SB554 2SD424                                                                       adcom-555-power-amplifier-schematic.pdf

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Electrocompaniet AW65 with pair 2SC2681 2SA1141                                               electrocompaniet-aw-65-power-amplifier-schematic.pdf

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Treshold Stasis 1 amplifier                                                                                           Threshold-Stasis-1-pwr-sch.pdf

bulletClassč Audio DR3 amplifier                                                                                        Dr3norm.jpg
bulletMark Levinson 27.5 amplifier with complementary Motorola MJ15024/MJ15025       Mark-Levinson-27-5-pwr-sm.pdf  
bulletHarman Kardon HK 870 amp with 2SD845/2SB755                                                 HK-870-pwr-sm.pdf
bulletQSC RMX 2450  amp with complementary Toshiba 2SC5200/2SA1943                   QSC_RMX2450.pdf
bulletMark Levinson 29 amp with complemetary MJ15024/MJ15025                                 MarkLevinson-No29 pwramp.pdf
bulletElectrocompaniet AW-100  with 2SC2681/2SA1141                                                 electrocompaniet-aw-100-power-amplifier-schematic.pdf
bulletKrohn-Hite 7500 quasi complementary amp with 2N5657                                           Krohn-Hite-7500.pdf
bulletQSC 1200 amplifier with 2SB554/2SD424                                                                 qsc1200.jpg
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Hiraga Le Monstre amp with 2SD844/2SB754 complementary CFP output stage        monsta.gif

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Luxman M-05 power amp with 2SC3281/2SA1302 pair                                             luxman-m05-power-amplifier-schematic.pdf

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Hiraga Le Class A amplifier with CFP stage of 2SD188/2SA627                                 hiraga3fig1.gif

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Vendetta  phono preamplifier                                                                                       Vendetta.jpg

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Nad 304 integrated amp with 2SC2837/2SA1186                                                       nad-304-integrated-amplifier-service-manual.pdf

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APT-Holman preamplifier                                                                                            apt-holman-preamplifier-service-manual.pdf

bulletLuxman L-550 integrated class A power amp with 2SC2526/2SA1076                       luxman-l550-integrated-amplifier-service-manual.pdf
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Electrocompaniet AW-70 with 2SC2565/2SA1095                                                    electrocompaniet-aw-70-power-amplifier-schematic.pdf

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Accuphase E-210 with 2SC2837/2SA1186                                                                accuphase-e210-integrated-amplifier-schematic[1].pdf

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Accuphase P-300 with 2SC1079/2SA679                                                                  accuphase-p300-power-amplifier-schematic.pdf

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Acurus Audio DIA-100 with 2SC3281/2SA1302                                                       acurus-dia-100-integrated-amplifier-schematic.pdf

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APT-Holman APT-1 power amplifier                                                                          apt-holman-apt1-power-amplifier-owners-manual.pdf

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Nad 2200-PE with 2SC3281/2SA1302                                                                      nad-2200pe-power-amplifier-service-manual.pdf

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Cello Encore 150 power amplifier with MJ15024/MJ15025                                        cello-encore-150-power-amplifier-schematic[1].pdf

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Classč DR3 VHC with MJ11015/MJ11016                                                                classe-dr3-vhc-power-amplifier-schematic.pdf

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Luxman L-80 integrated amp with 2SD388A/2SB541A                                              luxman-l80-integrated-amplifier-service-manual.pdf

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Sugden A-51 single ended transistor amp with 2N4914                                               sugden-a51-power-amplifier-schematic.pdf

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Electrocompaniet AW-120 power amplifier with 2SC5200/2SA1943                          electrocompaniet-aw120-power-amplifier-schematic.pdf

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Harman Kardon Citation 21 transistor preamplifier                                                       harman-kardon-citation-21-preamplifier-service-manual[1].pdf

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Harman Kardon Citation 22 power amp with 2SC3907/2SA1516                               harman-kardon-citation-22-power-amplifier-schematic.pdf

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Luxman L-30 integrated amplifier                                                                                 luxman-l30-integrated-amplifier-service-manual.pdf

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Marantz 7-T transistor preamplifier                                                                              Marantz 7T.bmp

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Mark Levinson 23 power amp with  MJ15024/MJ15025                                            MarkLevinson-No23 pwramp.pdf

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Nad 3020-B with 2N3055/MJ2955                                                                            nad-3020b-integrated-amplifier-schematic.pdf

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Accuphase monofonic M-60 with 2SD424/2SB554                                                    accuphase-m60-power-amplifier-schematic[1].pdf

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Naim Audio NAP-250 with BDY58                                                                           naim-audio-nap250-power-amplifier-schematic.pdf

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Studer 40 W with transistors 2N5634/2N6034                                                           studer-40w-power-amplifier-schematic.pdf

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Luxman M-120A power amplifier with 2SC2581/2SA1106                                        luxman-m120a-power-amplifier-schematic.pdf

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Sumo NINE PLUS Circlotron amplifier later Version C with 2SD555                          SUMO NINE PLUS Version C.pdf

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Luxman L210 with 2SC3180 2SA1263                                                                      luxman-l210-integrated-amplifier-schematic.pdf

Lateral, Vertical  or UHC Mosfets

bulletHafler DH220 with 2SJ49 2SK134                                                                        hafler-dh220-power-amplifier-schematic.pdf
bulletHafler DH500 with pair 2SK176 2SJ56                                                                 hafler-dh500-power-amplifier-service-manual.pdf
bulletHafler P7000 transnova amplifier with 2SK2221 2SJ352                                        hafler-p7000-power-amplifier-service-manual.pdf
bulletHafler Pro-2400 with 2SK1057 2SJ161                                                                hafler-pro2400.pdf
bulletHafler SE100 fet preamplifier                                                                                 hafler-se100-preamplifier-owners-manual.pdf
bulletHafler TA100F with pair IRF540/IRF9540                                                            hafler-ta100f-power-amplifier-schematic.pdf
bulletHafler XL280 with 2SK134 2SJ49                                                                        hafler-xl280-power-amplifier-service-manual.pdf
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Sage 2 amplifier                                                                                                     sage2.jpg

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Mosquito amp with complementary Hitachi 2SK1058/2SJ162                                mosquito_amp.gif

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Holton amp with complementary Toshiba 2SK1530/2SJ201                                   MOSAMP8.JPG

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Amplifier with complementary lateral mosfet Hitachi SK134/2SJ49                          AllFETGOAPWA.gif 

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Kaneda amp with UHC-MOS Hitachi 2SK1297                                                    No-144.gif

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Holton amplifier with IRFP240                                                                                N-CH1.JPG

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Hafler 9500 amp with complementary Hitachi 2SK1058/2SJ162                             hafler_915c.jpg

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Blowtorch preamp by John Curl                                                                              BLOWTORCH preamp.png

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Musical Fidelity A 370 amplifier with 2SK226/2SJ83                                              musical_fidelity_a370.jpg

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Luxman L-58  amplifier with 2SK135/2SJ50                                                           LUXMAN L58.jpg

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Accuphase E-203  amplifier with 2SK134/2SJ49                                                    Accuphase_E-203_Integrated_sch.pdf

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Sage 500 amp with 2SK414/2SJ119                                                                      SAGE supermos500.pdf

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Hafler 9505 amp with 2SK1058/2SJ162                                                                 Hafler-9505-pwr-sch[1].pdf

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Sumo Andromeda with mosfet MTM20N10/MTM20P10                                       sumo-andromeda-ll-power-amplifier-schematic.pdf

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Stochino fast solid state amp with International Rectifier mosfet IRF640/IRF9640    stochino.jpg