Welcome To the Hoffman Amplifiers ForumApril 25, 2026, 10:29:06 pm | ||
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Variac Minimum Voltage
Started by ululufut |
11 Replies
6364 Views |
by dude |
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25 Replies
10144 Views |
by HotBluePlates |
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just to make sure...
Started by Bieworm |
12 Replies
6168 Views |
by 66Strat |
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x6 push pull tube amp primary?
Started by Balticnoiseforge |
1 Replies
3973 Views |
by tubeswell |
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ENGL Retro 50 Schematic
Started by dpm309 |
13 Replies
6394 Views |
by d95err |
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1961 Super Amp Tremelo Problem
Started by plexi50 |
33 Replies
9160 Views |
by shooter |
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Silvertone 1433 heater wiring
Started by Leevi |
11 Replies
5169 Views |
by Leevi |
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76 Replies
37506 Views |
by kagliostro |
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5E3
Started by Fictitiousfreedom |
19 Replies
8302 Views |
by Williamblake |
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Fender Blackface Bassman AA864 chassis
Started by Jamlid |
47 Replies
13431 Views |
by Jamlid |
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Vibrochamp biasing
Started by Blooze |
35 Replies
14555 Views |
by HotBluePlates |
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Since It Seems To Be Champ Amp Month...
Started by DummyLoad |
21 Replies
8753 Views |
by DummyLoad |
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11 Replies
5685 Views |
by tubeswell |
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PP OT Questions
Started by W5FH |
7 Replies
4530 Views |
by W5FH |
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Joeamazoo pentode front end
Started by goldstache |
2 Replies
3313 Views |
by goldstache |
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Puzzled by 6SN7 cathode connection
Started by jordan86 |
17 Replies
7789 Views |
by jordan86 |
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Solid state CF harmonic trem
Started by Esquirefreak |
19 Replies
6672 Views |
by Esquirefreak |
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TW Express build.
Started by joesatch |
24 Replies
7603 Views |
by tubeswell |
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Stuck on a 6G15 build.
Started by Esquirefreak |
11 Replies
5268 Views |
by Esquirefreak |
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5 Replies
4460 Views |
by Bieworm |
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4 Replies
4767 Views |
by sluckey |
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12 Replies
5673 Views |
by HotBluePlates |
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3 Replies
3828 Views |
by Williamblake |
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resisor and cap in series on cathode?
Started by joesatch |
29 Replies
8554 Views |
by sluckey |
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27 Replies
8458 Views |
by sluckey |
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5U4GB vs. 5R4GA vs. SS rectifier?
Started by Lectroid |
12 Replies
7372 Views |
by Lectroid |
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2 Replies
3176 Views |
by imgumby001 |
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9 Replies
5426 Views |
by PRR |
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12 Replies
5050 Views |
by zosobozo |
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14 Replies
7251 Views |
by MikeW86 |
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Grounding plan for OR120 clone
Started by focusbob |
2 Replies
3543 Views |
by tubeswell |
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1 Replies
3284 Views |
by thetragichero |
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82 JC120 - desperado
Started by fdesalvo |
3 Replies
3101 Views |
by fdesalvo |
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Voltage drop with power tubes installed
Started by Ledvedder |
8 Replies
4884 Views |
by Ledvedder |
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1965 Marshall JTM 45 On Bench!!!
Started by plexi50 |
1 Replies
3426 Views |
by plexi50 |
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Sunn Solarus
Started by plexi50 |
14 Replies
7342 Views |
by plexi50 |
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Reverb Hum
Started by wsscott |
31 Replies
7869 Views |
by wsscott |
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HRD ML212 "Clone" Build Reverb Issue
Started by W5FH |
7 Replies
4235 Views |
by thetragichero |
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TungSol TS-272 Twin Triode
Started by W5FH |
0 Replies
2528 Views |
by W5FH |
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RCA 12ax7 vs Electro Harmonix
Started by cometphoton |
6 Replies
4748 Views |
by bmccowan |
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A little PT help, if you please..
Started by mmrxcsr01 |
7 Replies
4173 Views |
by thetragichero |
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Tighten up some flub on a half-power AC30?
Started by Cirrus |
2 Replies
3017 Views |
by Cirrus |
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DC heater supply
Started by joesatch |
4 Replies
3406 Views |
by kagliostro |
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4 Replies
3220 Views |
by acatlow@gmail.com |
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7 Replies
4136 Views |
by PRR |
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Sunn Grid Noise
Started by plexi50 |
10 Replies
4290 Views |
by plexi50 |
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5881 vs 6L6GB
Started by imgumby001 |
7 Replies
4194 Views |
by HotBluePlates |
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Twin Reverb II Biasing Question
Started by dpm309 |
7 Replies
4468 Views |
by dpm309 |
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4 Replies
3148 Views |
by kagliostro |
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Help with ID of this resistor
Started by Apexelectric |
10 Replies
4639 Views |
by Apexelectric |
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