Welcome To the Hoffman Amplifiers Forum
April 26, 2026, 10:51:31 am
Welcome To the Hoffman Amplifiers ForumApril 26, 2026, 10:51:31 am | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 16 Guests are viewing this board. | ||||
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23 Replies
9694 Views |
March 12, 2021, 04:16:23 pmby Mike_J |
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Problem with Supro Thunderbolt Build
Started by johno9 |
10 Replies
5904 Views |
March 11, 2021, 06:02:20 pm by shooter |
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33 Replies
10406 Views |
March 11, 2021, 05:59:57 pm by shooter |
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4 Replies
3814 Views |
March 11, 2021, 04:06:57 pm by Mike_J |
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Stuck, (I can't find the issue)
Started by dude |
10 Replies
7616 Views |
March 11, 2021, 03:54:46 pm by dude |
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Fender Bandmaster TFL5005?
Started by JustMike |
16 Replies
8570 Views |
March 11, 2021, 10:20:17 am by JustMike |
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13 Replies
9234 Views |
March 11, 2021, 05:58:05 am by pdf64 |
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Hoffman 5f6a modified to fit my chassis.
Started by Mike_J |
1 Replies
3250 Views |
March 10, 2021, 11:46:16 am by Mike_J |
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How to troubleshoot this?
Started by JustMike |
10 Replies
5849 Views |
March 10, 2021, 07:50:17 am by sluckey |
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28 Replies
9217 Views |
March 09, 2021, 06:25:11 pm by Mike_J |
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What's Up With My Plate Voltage?
Started by dankinzelman |
31 Replies
8713 Views |
March 09, 2021, 05:03:49 pm by PRR |
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Princeton Reverb hum.. help?
Started by Opry Audio |
12 Replies
6054 Views |
March 09, 2021, 01:20:55 pm by Opry Audio |
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Help understanding schematic
Started by munkeyboy |
14 Replies
6603 Views |
March 09, 2021, 12:54:51 pm by PRR |
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Rating ecaps.
Started by Mike_J |
7 Replies
5054 Views |
March 09, 2021, 11:47:20 am by PRR |
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5 Replies
4640 Views |
March 09, 2021, 11:05:30 am by wittyjeff |
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24 Replies
14097 Views |
March 09, 2021, 08:43:39 am by dragonworks |
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Preamp noise - repairable?
Started by jordan86 |
11 Replies
5463 Views |
March 09, 2021, 08:23:41 am by jordan86 |
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Marshall 1987s hum.
Started by Rich_C |
12 Replies
5346 Views |
March 09, 2021, 03:03:09 am by Tone Junkie |
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Polarity wiring filaments
Started by dude |
8 Replies
6556 Views |
March 08, 2021, 09:20:33 pm by Sonny ReVerb |
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3 Replies
3314 Views |
March 08, 2021, 05:47:57 pm by Mike_J |
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Volume and Tone Pot Ranges
Started by Ghetto_Soundwave |
4 Replies
3374 Views |
March 08, 2021, 01:12:06 pm by Ghetto_Soundwave |
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24 Replies
8371 Views |
March 08, 2021, 11:49:20 am by pgussler |
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5 Replies
4111 Views |
March 07, 2021, 01:39:18 pm by PharmRock |
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2 Replies
3399 Views |
March 07, 2021, 12:52:17 pm by luthierwnc |
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25 Replies
9968 Views |
March 07, 2021, 08:28:55 am by RadioComm |
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2 Replies
3829 Views |
March 07, 2021, 04:38:49 am by pdf64 |
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0 Replies
3410 Views |
March 07, 2021, 03:42:33 am by Latole |
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45 Replies
14329 Views |
March 06, 2021, 09:18:02 pm by acheld |
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Super Champ X2 => RR763
Started by Jacob |
2 Replies
3697 Views |
March 06, 2021, 10:14:31 am by sluckey |
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How hot can EL84s be biased?
Started by Mason |
12 Replies
9779 Views |
March 06, 2021, 08:03:25 am by sluckey |
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3 Replies
3577 Views |
March 06, 2021, 02:01:12 am by silverfox |
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27 Replies
10036 Views |
March 05, 2021, 06:36:45 pm by Jatchley |
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Poweramp Layout Xfmr Location questions
Started by markmalin |
6 Replies
3814 Views |
March 05, 2021, 02:52:15 pm by markmalin |
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Epiphone comet ea-rvt32 ot
Started by Simmie |
3 Replies
3463 Views |
March 05, 2021, 02:46:50 pm by Simmie |
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72 Replies
21224 Views |
March 04, 2021, 11:53:28 pm by proaudioguy |
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6v6 Plexi resistor value query
Started by Mehfuzhoss |
14 Replies
5562 Views |
March 04, 2021, 07:30:42 pm by PRR |
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Adding Filter Nodes?
Started by dankinzelman |
16 Replies
6930 Views |
March 04, 2021, 04:52:56 pm by dankinzelman |
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5F1 No Sound Problem-It just quit!
Started by wsscott |
26 Replies
9618 Views |
March 04, 2021, 04:52:01 pm by wsscott |
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Randall RM-100 Impedance switch
Started by JustMike |
3 Replies
3717 Views |
March 04, 2021, 12:31:37 pm by EL34 |
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1 Replies
3471 Views |
March 04, 2021, 10:14:41 am by PharmRock |
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14 Replies
6738 Views |
March 04, 2021, 03:08:47 am by Latole |
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Where to ground the first filter stage.
Started by Mike_J |
23 Replies
7800 Views |
March 03, 2021, 09:02:18 pm by tubeswell |
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Choosing Power Transformers
Started by acheld |
7 Replies
5032 Views |
March 03, 2021, 08:17:04 pm by acheld |
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0 Replies
3010 Views |
March 03, 2021, 05:54:41 pm by Mike_J |
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1977 Princeton Reverb PT failure?
Started by wsscott |
23 Replies
6613 Views |
March 03, 2021, 05:13:41 pm by wsscott |
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6 Replies
4050 Views |
March 03, 2021, 03:01:40 pm by Mike_J |
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New most terrible job ever.
Started by Mike_J |
9 Replies
4818 Views |
March 03, 2021, 06:12:20 am by Mike_J |
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14 Replies
4564 Views |
March 03, 2021, 12:47:11 am by d95err |
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Post PI Master Volume Coupling Cap
Started by scstill |
2 Replies
2767 Views |
March 02, 2021, 04:06:49 pm by thetragichero |
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B&H Filmosound 626 amp
Started by Zonnebloem |
2 Replies
3069 Views |
March 02, 2021, 03:56:08 pm by Zonnebloem |
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