Welcome To the Hoffman Amplifiers ForumOctober 23, 2025, 10:12:15 pm | ||
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No Heater Voltage Bassman Head
Started by 7string |
11 Replies
5460 Views |
by Ed_Chambley |
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Home-brew pot question.
Started by DummyLoad |
9 Replies
3246 Views |
by DummyLoad |
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Gas Cooker
Started by cfreeborn |
6 Replies
3077 Views |
by HotBluePlates |
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11 Replies
5393 Views |
by terminalgs |
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Traynor YSR1 1968 Find w/ YF 410 Cab
Started by plexi50 |
20 Replies
7869 Views |
by plexi50 |
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15 Replies
6237 Views |
by Geezer |
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Capacitor purpose question
Started by JonO |
11 Replies
5243 Views |
by PRR |
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5E3 box, 6g3 tone stack
Started by Ed_Chambley |
2 Replies
4847 Views |
by Ed_Chambley |
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PT voltage
Started by billcreller |
5 Replies
3048 Views |
by billcreller |
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Weird tone in VOX AC30
Started by Leevi |
4 Replies
2550 Views |
by bnwitt |
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Hissing JJs (6v6s)
Started by proaudioguy |
23 Replies
7789 Views |
by tubenit |
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10 Replies
9724 Views |
by billcreller |
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Premier 90 Reverb humm issue
Started by LooseChange |
2 Replies
3851 Views |
by HotBluePlates |
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Black-flip
Started by CraigB |
31 Replies
10215 Views |
by CraigB |
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Parallel EL34, SE 12 watts
Started by Ed_Chambley |
20 Replies
14945 Views |
by Ed_Chambley |
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10 Replies
7961 Views |
by spacelabstudio |
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5 Replies
5290 Views |
by HotBluePlates |
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Component identification
Started by six el six |
3 Replies
2647 Views |
by Ed_Chambley |
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Stand Alone Reverb with bias vary Trem?
Started by Willabe |
14 Replies
5825 Views |
by Willabe |
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bias advice
Started by dscottguitars |
8 Replies
3621 Views |
by dscottguitars |
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112 Replies
31020 Views |
by Willabe |
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Two amps under one hood.
Started by jeff |
12 Replies
5408 Views |
by jeff |
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Saved a Leslie 122 - Now what?
Started by tyru007 |
20 Replies
9283 Views |
by proaudioguy |
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Grid Leak Bias Input Question
Started by gtrbryan |
9 Replies
5689 Views |
by HotBluePlates |
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29 Replies
12021 Views |
by Ed_Chambley |
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Paint transformers
Started by jeff |
8 Replies
7199 Views |
by xm52 |
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One Tube Reverb Signal Input
Started by plexi50 |
0 Replies
2044 Views |
by plexi50 |
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4AB3C1B vs 9AB2C1B
Started by LooseChange |
8 Replies
6109 Views |
by plexi50 |
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2 Replies
2261 Views |
by garyboy |
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Switching between two tone stacks
Started by swipesy |
9 Replies
5753 Views |
by swipesy |
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10 Replies
4203 Views |
by bnwitt |
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gibson ga-20 coupling caps
Started by john_t |
16 Replies
6188 Views |
by john_t |
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super champ input jack wiring
Started by phsyconoodler |
4 Replies
3280 Views |
by phsyconoodler |
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Marshall Reverb Pot Values
Started by plexi50 |
5 Replies
3565 Views |
by plexi50 |
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Active FX box & standby?
Started by tubenit |
2 Replies
2056 Views |
by tubenit |
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47uf for the phase inverter filter
Started by dscottguitars |
8 Replies
6414 Views |
by Willabe |
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8 Replies
7819 Views |
by phsyconoodler |
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high gain jcm 800 50w w/ 2 pairs kt77?
Started by garyboy |
6 Replies
3256 Views |
by garyboy |
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power rail question
Started by ernie_jr |
3 Replies
2610 Views |
by ernie_jr |
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Fixed vs Cathode Biasing
Started by plexi50 |
10 Replies
19658 Views |
by plexi50 |
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Zeners Question
Started by bakerlite |
11 Replies
6213 Views |
by sluckey |
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MOVED: Go Curiousity!!
Started by tubenit |
0 Replies
1976 Views |
by tubenit |
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5 Replies
5408 Views |
by LooseChange |
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10 Replies
4000 Views |
by sluckey |
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pt sourcing
Started by Bugman3183 |
13 Replies
4079 Views |
by EL34 |
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Ampeg GV15
Started by plexi50 |
5 Replies
3898 Views |
by DummyLoad |
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two transformers back to back for isolation
Started by jeff |
4 Replies
2715 Views |
by proaudioguy |
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Tremolux Ab763 Intensity Pot Issue
Started by volt9 |
9 Replies
4213 Views |
by volt9 |
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2 Replies
2658 Views |
by HotBluePlates |
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minature alpha pots
Started by tubenit |
1 Replies
2103 Views |
by sluckey |
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