Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 11:18:42 am | ||
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Securing AC and chassis ground points?
Started by Mike_J |
23 Replies
8356 Views |
by Soulfetish |
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What would cause bias resistors to blow?
Started by Mason |
14 Replies
7642 Views |
by HotBluePlates |
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6 Replies
4306 Views |
by luthierwnc |
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Univox U235PB B+ Secondary Fusing
Started by astronomicum |
11 Replies
5813 Views |
by trobbins |
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6g3 Master Volume conundrum
Started by luthierwnc |
11 Replies
6307 Views |
by luthierwnc |
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My hoffman Twin Reverb - new problem
Started by proaudioguy |
5 Replies
4236 Views |
by sluckey |
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Silvertone 1484 Reverb Issue
Started by jim dresser |
3 Replies
3517 Views |
by thetragichero |
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6 Replies
3453 Views |
by Opry Audio |
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23 Replies
8968 Views |
by Mike_J |
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Problem with Supro Thunderbolt Build
Started by johno9 |
10 Replies
5349 Views |
by shooter |
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33 Replies
9353 Views |
by shooter |
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4 Replies
3312 Views |
by Mike_J |
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Stuck, (I can't find the issue)
Started by dude |
10 Replies
6944 Views |
by dude |
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Fender Bandmaster TFL5005?
Started by JustMike |
16 Replies
7875 Views |
by JustMike |
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13 Replies
8470 Views |
by pdf64 |
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Hoffman 5f6a modified to fit my chassis.
Started by Mike_J |
1 Replies
2825 Views |
by Mike_J |
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How to troubleshoot this?
Started by JustMike |
10 Replies
5279 Views |
by sluckey |
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28 Replies
8393 Views |
by Mike_J |
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What's Up With My Plate Voltage?
Started by dankinzelman |
31 Replies
7999 Views |
by PRR |
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Princeton Reverb hum.. help?
Started by Opry Audio |
12 Replies
5443 Views |
by Opry Audio |
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Help understanding schematic
Started by munkeyboy |
14 Replies
5994 Views |
by PRR |
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Rating ecaps.
Started by Mike_J |
7 Replies
4476 Views |
by PRR |
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5 Replies
4058 Views |
by wittyjeff |
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24 Replies
13345 Views |
by dragonworks |
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Preamp noise - repairable?
Started by jordan86 |
11 Replies
4917 Views |
by jordan86 |
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Marshall 1987s hum.
Started by Rich_C |
12 Replies
4942 Views |
by Tone Junkie |
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Polarity wiring filaments
Started by dude |
8 Replies
5923 Views |
by Sonny ReVerb |
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3 Replies
2909 Views |
by Mike_J |
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Volume and Tone Pot Ranges
Started by Ghetto_Soundwave |
4 Replies
2918 Views |
by Ghetto_Soundwave |
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24 Replies
7737 Views |
by pgussler |
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5 Replies
3662 Views |
by PharmRock |
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2 Replies
2939 Views |
by luthierwnc |
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25 Replies
9118 Views |
by RadioComm |
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2 Replies
3405 Views |
by pdf64 |
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0 Replies
2688 Views |
by Latole |
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45 Replies
13188 Views |
by acheld |
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Super Champ X2 => RR763
Started by Jacob |
2 Replies
3253 Views |
by sluckey |
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How hot can EL84s be biased?
Started by Mason |
12 Replies
9211 Views |
by sluckey |
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3 Replies
3187 Views |
by silverfox |
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27 Replies
9309 Views |
by Jatchley |
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Poweramp Layout Xfmr Location questions
Started by markmalin |
6 Replies
3485 Views |
by markmalin |
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Epiphone comet ea-rvt32 ot
Started by Simmie |
3 Replies
3108 Views |
by Simmie |
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72 Replies
19490 Views |
by proaudioguy |
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6v6 Plexi resistor value query
Started by Mehfuzhoss |
14 Replies
5175 Views |
by PRR |
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Adding Filter Nodes?
Started by dankinzelman |
16 Replies
6404 Views |
by dankinzelman |
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5F1 No Sound Problem-It just quit!
Started by wsscott |
26 Replies
8958 Views |
by wsscott |
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Randall RM-100 Impedance switch
Started by JustMike |
3 Replies
3346 Views |
by EL34 |
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1 Replies
3154 Views |
by PharmRock |
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14 Replies
6173 Views |
by Latole |
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Where to ground the first filter stage.
Started by Mike_J |
23 Replies
7228 Views |
by tubeswell |
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