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 EL34 SE V Single end Tube Amplifier 10W+10W DIY Kit Stereo No Tube $118.80 Time Remaining: 5d 10h 21m Buy It Now for only: $118.80 |
 NEW DIY Pre amp Tube Amplifier Kit 6N3 + Transformer $36.99 Time Remaining: 13h 21m Buy It Now for only: $45.50 |
 Pre amp Tube Amplifier Kit 6N3 SRPP for Audio DIY New $30.00 Time Remaining: 19d 5h 4m Buy It Now for only: $30.00 |
 Pre amp Tube Amplifier Kit 6N2 SRPP for DIY AudioY20 $23.99 Time Remaining: 11d 12h 36m Buy It Now for only: $23.99 |
 Tube 6N3 Preamp TDA7294 Power Amplifier Kit DIY 80W+80W $32.00 Time Remaining: 9h 37m Buy It Now for only: $32.00 |
 EL34 SE V Single end Tube Amplifier 10W+10W DIY Kit Stereo $149.00 Time Remaining: 27d 11h 40m Buy It Now for only: $149.00 |
 Ground Grounded Grid Tube Valve Preamplifier Amplifier S3 DIY Kit Stereo $165.90 Time Remaining: 29d 16h 14m Buy It Now for only: $165.90 |
 ALL TUBE High voltage Variable Power Supply DIY PCB NEW $49.99 Time Remaining: 23d 8h 44m Buy It Now for only: $49.99 |
 12AU7 Balance Valve Tube Preamplifier Amplifier DIY Kit ref AR Stereo $118.00 Time Remaining: 26d 14h 40m Buy It Now for only: $118.00 |
 NEW Variable Tube Power Supply DIY Kit 190 380V 01A $106.88 Time Remaining: 12d 9h 12m Buy It Now for only: $106.88 |
 Compatible 6Nxx 12xxx 6N11 12AU7 series Tube DIY HiFI Headphone Amplifier AMP $69.59 Time Remaining: 15d 16h 20m Buy It Now for only: $69.59 |
 Pre amp Tube PRE Amplifier Buffer 6N35670 Kit For DIY $19.99 Time Remaining: 5d 6h 4m Buy It Now for only: $19.99 |
 ALL TUBE EZ80 6AU6 OB2 EL84 High voltage tube Variable Power Supply PCB DIY $49.99 Time Remaining: 3d 18h 48m Buy It Now for only: $49.99 |
 DIY AMP Board Tube 6N3 Buffer Audio Preamplifier Pre AMP Board HIFI Amplifier $23.99 Time Remaining: 15d 4h 23m Buy It Now for only: $23.99 |
 12AX7 ECC83 MM MC Phono Turnable Tube Preamplifier DIY Kit ref VTL No Tube $88.90 Time Remaining: 27d 4h 58m Buy It Now for only: $88.90 |
 LM4780 Amplifier with TUBE Pre Amplifer PCB DIY KIT NEW $78.00 Time Remaining: 18d 4h 50m Buy It Now for only: $78.00 |
 TUBE 5U4 6AC7 OB2 6080 High voltage tube Variable Power Supply AUDIO DIY PCB $89.99 Time Remaining: 21d 18h 21m Buy It Now for only: $89.99 |
 PCB Board SP 10 Tube Pre amp 6922 6DJ8 E88CC DIY $21.99 Time Remaining: 4d 14h 6m Buy It Now for only: $21.99 |
 EL84 High voltage tube Variable Power Supply PCB DIY $49.99 Time Remaining: 28d 7h 53m Buy It Now for only: $49.99 |
 Assembled Tube 6N11 + TDA7293 Stero Power amplifier board 2100W DIY HiFi AMP $46.00 Time Remaining: 9d 16h 19m Buy It Now for only: $46.00 |
 Buffer 6N35670 Pre amp Tube PRE Amplifier Kit DIYY28 $19.99 Time Remaining: 25d 5h 18m Buy It Now for only: $19.99 |
 PV5 Tube Pre Amplifier DIY Kit Based on Conrad John $69.00 Time Remaining: 6d 22h 12m Buy It Now for only: $69.00 |
 6SN7 SRPP Tube Valve Preamplifier Amplifier Amp DIY Kit Stereo No Tube $66.00 Time Remaining: 3d 6h 42m Buy It Now for only: $66.00 |
 Full DIY Kit ref Marantz 7 C Tube Pre Amplifier 2 Ch $399.99 Time Remaining: 23d 18h 42m Buy It Now for only: $399.99 |
 Full DIY Kit ref Modified C22 Tube Preamp 2 Ch $399.99 Time Remaining: 27d 17h 11m Buy It Now for only: $399.99 |
 2A3PP 2A3 6SN7 Push Pull Tube Amplifier DIY Kit 15W+15W Stereo No Tube $148.00 Time Remaining: 2d 9h 39m Buy It Now for only: $148.00 |
 M7C SRPP Preamplifier DIY Kit Based on Marantz Stereo No Tube $78.00 Time Remaining: 28d 10h 6m Buy It Now for only: $78.00 |
 DIY PCB Tube Pre Amp Board SP 10 6922 6DJ8 $17.99 Time Remaining: 5d 9h 1m Buy It Now for only: $17.99 |
 DIY Kit ref Jadis JP 200 JP200 Tube Pre Amplifier 2 Ch $159.00 Time Remaining: 18d 6h 26m Buy It Now for only: $159.00 |
 DIY Kit ref Marantz 7 C Tube Pre Amplifier 2 Channels $149.99 Time Remaining: 6d 9h 49m Buy It Now for only: $149.99 |
 DIY Kit ref Jadis JP 200 JP200 Tube Pre Amp No Tube $89.00 Time Remaining: 12d 20h 25m Buy It Now for only: $89.00 |
 DIY Kit ref Marantz 7 C Tube Pre Amplifier No Tubes $129.99 Time Remaining: 13d 7h 36m Buy It Now for only: $129.99 |
 DIY Kit ref Jadis JP 200 JP200 Tube Pre Amplifier 2 Ch $159.00 Time Remaining: 23d 10h 33m Buy It Now for only: $159.00 |
 6N3 5670 Tube Buffer DIY Kit S3 Stereo $111.13 Time Remaining: 12d 21h 37m Buy It Now for only: $111.13 |
 DIY Kit ref Marantz 7C Tube Pre Amplifier 2 Channels $149.99 Time Remaining: 23d 5h 12m Buy It Now for only: $149.99 |
 DIY Kit ref Grounded Grid Pre Amplifier No tubes ver $99.99 Time Remaining: 22d 10h 17m Buy It Now for only: $99.99 |
 Variable Tube Power Supply DIY Kit No tubes Version $79.99 Time Remaining: 12d 9h 12m Buy It Now for only: $79.99 |
 DIY Kit ref Jadis JP 200 JP200 Tube Pre Amp No tube $126.00 Time Remaining: 18d 6h 28m Buy It Now for only: $126.00 |
 6SN7 SRPP Tube Pre Amplifier DIY Kit S3 Stereo $131.54 Time Remaining: 12d 21h 37m Buy It Now for only: $131.54 |
 DIY PCB Tube Pre Amp Board SP 10 6922 6DJ8 $13.99 Time Remaining: 3d 20h 6m |
 6N3 5670 SRPP Tube Valve Pre amplifier Preamplifier Amplifier DIY Kit Stereo $54.90 Time Remaining: 26d 4h 36m Buy It Now for only: $54.90 |
 DIY Kit ref Marantz 7C Tube Pre Amplifier 2 Channels $149.99 Time Remaining: 13d 8h 36m Buy It Now for only: $149.99 |
 6SN7 SRPP Tube Pre Amplifier DIY Kit Stereo preamp $79.00 Time Remaining: 12d 21h 38m Buy It Now for only: $79.00 |
 Tube 6N3 Preamp TDA7294 Power Amplifier Kit DIY 80W x2 $290.00 Time Remaining: 16d 15h 19m Buy It Now for only: $290.00 |
 GG Preamplifier Amplifier Stereo DIY Kit ref Grounded Grid No Tube $79.90 Time Remaining: 2d 7h 43m Buy It Now for only: $79.90 |
 Variable Tube Power Supply DIY Kit 190 380V No tube ver $79.99 Time Remaining: 12d 9h 12m Buy It Now for only: $79.99 |
 Grounded Grid Plus Pre Amplifier DIY Kit Stereo No Tube $43.09 Time Remaining: 12d 21h 39m Buy It Now for only: $43.09 |
 DIY Kit ref Marantz 7C Tube Pre Amplifier S3 Stereo $162.16 Time Remaining: 12d 21h 39m Buy It Now for only: $162.16 |
 NEW DIY Pre amp Tube Amplifier Kit 6N2 SRPP for T AMP $48.99 Time Remaining: 12d 18h 21m Buy It Now for only: $48.99 |
 6N3 5670 Tube Buffer Unit Gain Amplifier DIY Kit $65.99 Time Remaining: 6h 8m Buy It Now for only: $65.99 |
 6N3 5670 Tube Buffer Amplifier DIY Kit $65.99 Time Remaining: 12d 18h 38m Buy It Now for only: $65.99 |
 DIY Kit ref Marantz 7C Tube Pre Amp Stereo No Tube $78.00 Time Remaining: 12d 20h 25m Buy It Now for only: $78.00 |
 DIY Kit ref Modified C22 Tube Preamp 2 Channels $165.00 Time Remaining: 13d 8h 41m Buy It Now for only: $165.00 |
 PCB Ref Jadis JP 200 Tube Pre Amp Amplifier VerA4 DIY $21.99 Time Remaining: 19d 13h 25m Buy It Now for only: $21.99 |
 DIY Kit Modified C22 Tube Preamp 2 Channels $159.99 Time Remaining: 23d 10h 5m Buy It Now for only: $159.99 |
 PCB Ref Jadis JP 200 Tube Pre Amp Amplifier VerA1 DIY $21.99 Time Remaining: 19d 12h 47m Buy It Now for only: $21.99 |
 NEW DIY Pre Amp Tube Amplifier Kit 6N3 x2 + 6Z4 Board $36.50 Time Remaining: 26d 12h 32m Buy It Now for only: $36.50 |
 DIY Kit ref Marantz 7C 7 C Tube Pre Amplifier Stereo $105.00 Time Remaining: 12d 21h 38m Buy It Now for only: $105.00 |
 Tube PreAmplifier DIY Kit Based on McIntosh C22 No Tube $89.00 Time Remaining: 12d 20h 25m Buy It Now for only: $89.00 |
 4 Pcs MULTI PURPOSE TUBE AMPLIFIER PCB DIY U2S $18.00 Time Remaining: 1d 5h 43m Buy It Now for only: $18.00 |
 DIY Kit ref Jadis JP 200 JP200 Tube Pre Amplifier 2 Ch $162.16 Time Remaining: 12d 21h 38m Buy It Now for only: $162.16 |
 DIY Kit ref Marantz 7C Tube Preamplifier S2 Stereo $205.25 Time Remaining: 12d 21h 39m Buy It Now for only: $205.25 |
 DIY Build audiophile VALVE TUBE pre amplifiers preamp $107.44 Time Remaining: 21d 10h 34m Buy It Now for only: $107.44 |
 DIY Kit ref Matisse Fantasy Pre Amplifier No Tube $88.45 Time Remaining: 12d 20h 25m Buy It Now for only: $88.45 |
 Tube Pre Amplifier DIY Kit Based on McIntosh C 22 C22 $151.96 Time Remaining: 12d 21h 41m Buy It Now for only: $151.96 |
 6N3 5670 Tube Buffer DIY Kit Stereo $66.91 Time Remaining: 12d 21h 37m Buy It Now for only: $66.91 |
 DIY Kit ref CAT SL 1 Preamplifier Stereo No Tube $90.61 Time Remaining: 12d 20h 24m Buy It Now for only: $90.61 |
 NEW DIY Pre amp Tube Amplifier Kit 6N3 + Transformer $45.50 Time Remaining: 12d 2h 39m Buy It Now for only: $45.50 |
 6N3 5670 Tube Buffer DIY Kit Stereo No Tube $51.03 Time Remaining: 12d 20h 24m Buy It Now for only: $51.03 |
 DIY tube guitar amp 3 DVD valve amplifier EL34 6L6 EL84 $117.30 Time Remaining: 6d 15h 16m Buy It Now for only: $117.30 |
 DIY Modify Upgrade VALVE TUBE amp amplifier EL34 300B $117.30 Time Remaining: 1d 3h 57m Buy It Now for only: $117.30 |
 Modify Upgrade VALVE TUBE pre amplifiers pre amp DIY $107.44 Time Remaining: 21d 10h 38m Buy It Now for only: $107.44 |
 TUBE TESTERS DIY DVD valve Lampemtre Rhrenprfgert $146.87 Time Remaining: 20d 5h 46m Buy It Now for only: $146.87 |
 5670 TDA7294 Tube Hybird Integrated Amplifier DIY Kit $29.00 Time Remaining: 6d 6h 26m Buy It Now for only: $29.00 |
 12AX7 LM3886 Tube Hyber Power Amplifier Amp Kit For DIY $44.99 Time Remaining: 7d 4h 51m Buy It Now for only: $44.99 |
 Pre AMP Amplifier KIT Tube 6N2 SRPP Good for DIY $29.99 Time Remaining: 5d 7h 20m Buy It Now for only: $29.99 |
 Pre AMP Peramplifier KIT Tube 6N11 SRPP for DIY $38.99 Time Remaining: 14d 4h 37m Buy It Now for only: $38.99 |
Where can I find a good DIY diagram to make a Class A tube amp?
With common tubes and easy to understand.
The difficult part would be the output transformer. Your best bet is to look at garage sales and similar to find an old unit. You can update it as needed, but you will have the transformers and chassis.
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tube audio amplifiers DIY