Welcome To the Hoffman Amplifiers ForumDecember 09, 2025, 07:46:17 am | ||
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Noise on new build
Started by rzenc |
14 Replies
5517 Views |
by rzenc |
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3rd prong (AC ground) removed=problems?
Started by Madison |
7 Replies
3415 Views |
by kagliostro |
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Sluckeys' Warbler question
Started by worth |
2 Replies
2614 Views |
by PRR |
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33 Replies
12087 Views |
by baileyblues |
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6V6 Series Heater Wiring
Started by plexi50 |
22 Replies
9881 Views |
by plexi50 |
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Old Brand New EL-34's
Started by Ed_Chambley |
4 Replies
3005 Views |
by Ed_Chambley |
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43 Replies
13199 Views |
by Tyrannocaster |
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7 Replies
7826 Views |
by tubeswell |
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Question on Biasing a Bogen amp
Started by Seegs |
8 Replies
4449 Views |
by John |
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Wire gauge question
Started by bartman |
4 Replies
3004 Views |
by archaos |
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2 Replies
2951 Views |
by SoundmasterG |
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Am I biasing this right?
Started by Tyrannocaster |
3 Replies
2342 Views |
by phsyconoodler |
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VVR : bad experience ?
Started by Colas LeGrippa |
4 Replies
3047 Views |
by The_Gaz |
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6l6 vs el34
Started by dscottguitars |
12 Replies
15787 Views |
by dscottguitars |
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Bizarre OPT reaction
Started by Colas LeGrippa |
19 Replies
6460 Views |
by Colas LeGrippa |
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Adding some switchable NFB
Started by Tyrannocaster |
9 Replies
5619 Views |
by Tyrannocaster |
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One input, one jack, Hi/Low?
Started by Tyrannocaster |
17 Replies
9854 Views |
by Tyrannocaster |
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Chassis tips
Started by jeff |
13 Replies
4802 Views |
by John |
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oh lordy, another bogen hack...
Started by DummyLoad |
7 Replies
4269 Views |
by DummyLoad |
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6 Replies
3226 Views |
by m3moser |
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Hum when Bass pot is turned up
Started by punkykatt |
5 Replies
3951 Views |
by punkykatt |
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Tube Active Tone Stack??
Started by TIMBO |
9 Replies
13998 Views |
by kagliostro |
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3 Replies
2526 Views |
by Willabe |
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Talk to me about OVERDRIVE
Started by SILVERGUN |
41 Replies
11715 Views |
by jojokeo |
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1 Replies
2302 Views |
by Tyrannocaster |
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4 Replies
2902 Views |
by proaudioguy |
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1996 Hotrod Deluxe Mods / WOWZA!
Started by plexi50 |
28 Replies
11865 Views |
by Colas LeGrippa |
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Output transformer Impedance.
Started by Underwood |
5 Replies
8409 Views |
by Tyrannocaster |
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0 Replies
2153 Views |
by kagliostro |
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treble cut on a switch?
Started by Quatro |
11 Replies
4687 Views |
by thelonious |
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Noise from SE EL84 Amp
Started by Platefire |
18 Replies
6741 Views |
by Platefire |
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Need help with fresh build....
Started by SILVERGUN |
26 Replies
7539 Views |
by SILVERGUN |
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8 Replies
5888 Views |
by kagliostro |
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13 Replies
10149 Views |
by Quatro |
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3 Replies
3845 Views |
by sluckey |
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Fender Super Twin Reverb Ugly distortion....
Started by BigE |
2 Replies
3175 Views |
by LooseChange |
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Why do power tubes degrade?
Started by spacelabstudio |
17 Replies
8072 Views |
by jjasilli |
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MOVED: UNBELIEVABLE? I say NO!
Started by tubenit |
0 Replies
2127 Views |
by tubenit |
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Power supply for battery amp
Started by Leevi |
2 Replies
2456 Views |
by Leevi |
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11 Replies
12449 Views |
by Ed_Chambley |
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Single Ended EL84 Ideas
Started by gtrbryan |
2 Replies
8514 Views |
by John |
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60hz hum in Ampeg SVP preamp
Started by six el six |
5 Replies
5496 Views |
by six el six |
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here is my latest build
Started by phsyconoodler |
14 Replies
4720 Views |
by stingray_65 |
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.1 Cap for presence .
Started by Tone Junkie |
4 Replies
3321 Views |
by Tone Junkie |
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6AU6 screen fed by voltage divider?
Started by jeff |
17 Replies
8783 Views |
by jeff |
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7 Replies
6400 Views |
by m2dad |
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HAMMOND 1640 SEA
Started by Colas LeGrippa |
8 Replies
4076 Views |
by Colas LeGrippa |
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70's Sonic (pa) Bass amp
Started by bbirling |
4 Replies
3432 Views |
by HotBluePlates |
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5Y3 rectifiers on a hombrew jcm 800 2204
Started by garyboy |
2 Replies
2856 Views |
by garyboy |
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5 Replies
3841 Views |
by olgoat |
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