Welcome To the Hoffman Amplifiers ForumDecember 09, 2025, 09:02:58 am | ||
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TOS vs TBM vs CSB
Started by tubenit |
21 Replies
8198 Views |
by zendragon63 |
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EL84/6V6GT A BIT TOOOOO HOT (PLEX GAIN 20)
Started by TIMBO |
32 Replies
10911 Views |
by jjasilli |
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89 Replies
25213 Views |
by jojokeo |
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PT for a 18 W stout
Started by stingray_65 |
4 Replies
3445 Views |
by stingray_65 |
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Various amp questions
Started by tubenit |
9 Replies
4022 Views |
by tubenit |
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5 Replies
4531 Views |
by plexi50 |
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1ohm 10W power resistor on Cathode?
Started by samato |
7 Replies
3390 Views |
by Tiny_Daddy |
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it's driving me crazy...
Started by rzenc |
26 Replies
8607 Views |
by jojokeo |
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32 Replies
13430 Views |
by LooseChange |
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Black-Face Vibro-Champ help
Started by 1969mako |
9 Replies
4578 Views |
by HotBluePlates |
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2 Replies
3337 Views |
by Mars-Hall |
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quick OT question
Started by firemedic |
8 Replies
4479 Views |
by firemedic |
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0 Replies
2310 Views |
by kagliostro |
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AA371 Bassman bias mod
Started by Mars-Hall |
3 Replies
2786 Views |
by Mars-Hall |
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my new project-Acoustic Valve Amplifier
Started by bigugly |
12 Replies
5400 Views |
by G._Hoffman |
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HT Fuse Blowing
Started by TIMBO |
16 Replies
8477 Views |
by sluckey |
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5e3 with "Hot Switch"
Started by cesibley |
7 Replies
3988 Views |
by EL34 |
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6v6 OT
Started by Tone Junkie |
12 Replies
4955 Views |
by PRR |
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Custom Amp Build Tweaking Help
Started by Megachunk |
37 Replies
10345 Views |
by jojokeo |
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7 Replies
6491 Views |
by jojokeo |
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66 Vibrolux Issues
Started by fiftynine |
14 Replies
5654 Views |
by fiftynine |
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fender bandmaster problem
Started by tcoil |
3 Replies
3496 Views |
by tcoil |
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how to reform filter cap
Started by kwm488 |
1 Replies
2773 Views |
by kagliostro |
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2 Replies
5122 Views |
by phsyconoodler |
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low power plexi
Started by Tone Junkie |
5 Replies
4696 Views |
by bluesbear |
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PT protection - one more question
Started by bluesbear |
18 Replies
6572 Views |
by jjasilli |
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New SE Build
Started by dpm309 |
2 Replies
2606 Views |
by jjasilli |
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Bias Balance Ineffective- WHY?
Started by jjasilli |
29 Replies
10055 Views |
by jjasilli |
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The Columbia
Started by Madison |
9 Replies
5317 Views |
by Madison |
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Parts List for blackfacing a twin?
Started by bakerlite |
2 Replies
2594 Views |
by loogie |
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Contemplating a PT change or not?
Started by jojokeo |
13 Replies
4981 Views |
by PRR |
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Mello cello(anyone build a bass amp?)
Started by jeff |
12 Replies
6208 Views |
by PRR |
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Power Supply - one other question
Started by kagliostro |
13 Replies
5229 Views |
by HotBluePlates |
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Odd bias on twin re-issue
Started by nateflanigan |
7 Replies
3932 Views |
by HotBluePlates |
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Just for info .
Started by catnine |
3 Replies
2919 Views |
by LooseChange |
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crackling when playing with bass guitar
Started by Leevi |
14 Replies
5471 Views |
by bluesbear |
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Opinion on filter cap rating please
Started by jojokeo |
10 Replies
4750 Views |
by PRR |
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Elevated Heaters
Started by TIMBO |
5 Replies
3667 Views |
by TIMBO |
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2 Replies
2704 Views |
by Matty_V |
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London Reverb ?
Started by worth |
0 Replies
2409 Views |
by worth |
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6SL7 dampers to stop microphonics ?
Started by worth |
3 Replies
3130 Views |
by kagliostro |
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Parts suppliers
Started by labb |
9 Replies
4679 Views |
by dpm309 |
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3 Replies
5443 Views |
by DummyLoad |
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6 Replies
4127 Views |
by six el six |
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Reverb Transformer
Started by dpm309 |
9 Replies
5492 Views |
by dpm309 |
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Plate resistor rating on a svt
Started by bakerlite |
7 Replies
5515 Views |
by Cups |
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Another conversion
Started by jeff |
13 Replies
4805 Views |
by jjasilli |
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From the frying pan into the helicopter
Started by RC_cola |
7 Replies
3937 Views |
by sluckey |
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4 Replies
4292 Views |
by kagliostro |
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'61 Tweed Champ
Started by Shrapnel |
7 Replies
3984 Views |
by HotBluePlates |
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