Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 05:33:57 pm | ||
| Subject / Started by | Replies / Views | Last post ![]() |
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Ampeg VT-40 Screen Grid Question
Started by Jack1962 |
1 Replies
2870 Views |
by sluckey |
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What to build with this AO-29?
Started by Toxophilite |
35 Replies
8286 Views |
by Toxophilite |
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Fender Amp schematic/layout problems
Started by Underwood |
12 Replies
3983 Views |
by meycom |
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Quad Bias Supply
Started by TIMBO |
18 Replies
5793 Views |
by TIMBO |
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Question on KT-66 vs 6L6 vs EL34K
Started by markmalin |
8 Replies
3719 Views |
by shooter |
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197 Replies
48422 Views |
by TIMBO |
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Tone stacks 5F6A vs Ab763
Started by Toxophilite |
17 Replies
11498 Views |
by jjasilli |
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35 Replies
9937 Views |
by jojokeo |
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When Perfect is too Perfect
Started by TerryD |
2 Replies
2339 Views |
by shooter |
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No sound when on, then suddenly sound
Started by aro |
30 Replies
6873 Views |
by aro |
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How to improve tremolo intensity?
Started by MadMax |
12 Replies
11393 Views |
by MadMax |
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adding a Power Amp IN?
Started by Mook |
2 Replies
2193 Views |
by Mook |
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Help organize my board layout
Started by hesamadman |
14 Replies
4513 Views |
by EL34 |
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6 Replies
2844 Views |
by EL34 |
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100 Replies
29316 Views |
by Siku Music |
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18W Stout input channels
Started by terminalgs |
11 Replies
5816 Views |
by terminalgs |
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bias switching
Started by shooter |
15 Replies
4922 Views |
by kagliostro |
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1 Replies
2094 Views |
by kagliostro |
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todays haul
Started by Toxophilite |
2 Replies
2136 Views |
by Toxophilite |
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Ampeg V-4BH low output
Started by BigE |
2 Replies
2028 Views |
by BigE |
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Sluckey AB763 lite build question
Started by Toxophilite |
16 Replies
5011 Views |
by Toxophilite |
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Output P/T suggestion
Started by ernie_jr |
5 Replies
2962 Views |
by DummyLoad |
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Champion 600 reissue
Started by Toxophilite |
4 Replies
2879 Views |
by Toxophilite |
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10 Replies
5647 Views |
by TubeGeek |
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Hoffman Princeton Reverb Build
Started by sclinchy |
3 Replies
2158 Views |
by EL34 |
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Amp Switching Circuit Popping
Started by 8Len8 |
12 Replies
6887 Views |
by 2deaf |
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2 Replies
2168 Views |
by MakerDP |
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Weber power transformer hookup options
Started by 1gonecat |
6 Replies
3458 Views |
by 1gonecat |
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9 Replies
3147 Views |
by kagliostro |
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0 Replies
1840 Views |
by guitarboy58 |
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Causes of inadequate output power
Started by Matt C. |
5 Replies
2617 Views |
by PRR |
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Reverb is sucking my signal?!?!
Started by hesamadman |
3 Replies
2446 Views |
by hesamadman |
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Turret Boards
Started by kl2mcbride |
18 Replies
5485 Views |
by Fresh_Start |
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11 Replies
3786 Views |
by super&plexi |
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My first amp build (18W)
Started by pickdropper |
14 Replies
4279 Views |
by supro66 |
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Sudden flash in EL84
Started by hesamadman |
3 Replies
2532 Views |
by sluckey |
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D'Mars ODS EL84 quad
Started by Glennjeff |
17 Replies
5676 Views |
by Glennjeff |
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5e3M Deluxe 1 watt
Started by tubenit |
0 Replies
2286 Views |
by tubenit |
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Push pull 50W, suggestions ?
Started by Colas LeGrippa |
7 Replies
2696 Views |
by Glennjeff |
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7 Replies
2759 Views |
by sluckey |
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Filament Overvoltage
Started by clyde |
7 Replies
3225 Views |
by Willabe |
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12AY7 8 pin equivalent
Started by TIMBO |
14 Replies
6991 Views |
by TIMBO |
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2 Replies
2510 Views |
by kagliostro |
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HiFi for some dudes at work
Started by nateflanigan |
9 Replies
3530 Views |
by PRR |
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New Revibe: done! Needs fixing!
Started by SleepLess |
8 Replies
3071 Views |
by shooter |
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RCA plug for speaker jack on Fender amp
Started by Underwood |
25 Replies
8037 Views |
by Jim Coash |
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Deluxe reverb 2 channel or 1
Started by JGk |
6 Replies
3524 Views |
by Fresh_Start |
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Repairing Blackface Bassman AB165
Started by MakerDP |
14 Replies
7005 Views |
by MakerDP |
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SS rectifumcation
Started by Toxophilite |
5 Replies
2609 Views |
by Toxophilite |
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What Am I Seeing?
Started by zendragon63 |
6 Replies
2936 Views |
by PRR |
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