Welcome To the Hoffman Amplifiers Forum
September 06, 2025, 12:57:30 pm
Welcome To the Hoffman Amplifiers ForumSeptember 06, 2025, 12:57:30 pm | ||
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2 Replies
1526 Views |
March 15, 2021, 06:07:18 pmby Coinroller |
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Deluxe OPT in Princeton
Started by casey73 |
9 Replies
2934 Views |
March 15, 2021, 12:05:40 pm by casey73 |
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9 Replies
2898 Views |
March 15, 2021, 11:33:02 am by Mike_J |
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Securing AC and chassis ground points?
Started by Mike_J |
23 Replies
5656 Views |
March 14, 2021, 08:33:35 pm by Soulfetish |
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What would cause bias resistors to blow?
Started by Mason |
14 Replies
5647 Views |
March 14, 2021, 07:25:59 pm by HotBluePlates |
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6 Replies
2869 Views |
March 14, 2021, 04:27:41 am by luthierwnc |
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Univox U235PB B+ Secondary Fusing
Started by astronomicum |
11 Replies
3927 Views |
March 13, 2021, 07:13:30 pm by trobbins |
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6g3 Master Volume conundrum
Started by luthierwnc |
11 Replies
4545 Views |
March 13, 2021, 06:05:41 pm by luthierwnc |
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1965 Gretsch/Valco 6165 noise
Started by wsscott |
31 Replies
5897 Views |
March 13, 2021, 11:22:57 am by wsscott |
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My hoffman Twin Reverb - new problem
Started by proaudioguy |
5 Replies
2910 Views |
March 13, 2021, 06:03:40 am by sluckey |
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Silvertone 1484 Reverb Issue
Started by jim dresser |
3 Replies
2183 Views |
March 13, 2021, 12:33:38 am by thetragichero |
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6 Replies
2367 Views |
March 12, 2021, 04:58:29 pm by Opry Audio |
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23 Replies
6560 Views |
March 12, 2021, 04:16:23 pm by Mike_J |
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Problem with Supro Thunderbolt Build
Started by johno9 |
10 Replies
3637 Views |
March 11, 2021, 06:02:20 pm by shooter |
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33 Replies
5883 Views |
March 11, 2021, 05:59:57 pm by shooter |
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4 Replies
1772 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
4683 Views |
March 11, 2021, 03:54:46 pm by dude |
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Fender Bandmaster TFL5005?
Started by JustMike |
16 Replies
5687 Views |
March 11, 2021, 10:20:17 am by JustMike |
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13 Replies
6227 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
1744 Views |
March 10, 2021, 11:46:16 am by Mike_J |
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How to troubleshoot this?
Started by JustMike |
10 Replies
3556 Views |
March 10, 2021, 07:50:17 am by sluckey |
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28 Replies
6378 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
5960 Views |
March 09, 2021, 05:03:49 pm by PRR |
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Princeton Reverb hum.. help?
Started by Opry Audio |
12 Replies
3618 Views |
March 09, 2021, 01:20:55 pm by Opry Audio |
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Help understanding schematic
Started by munkeyboy |
14 Replies
4288 Views |
March 09, 2021, 12:54:51 pm by PRR |
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Rating ecaps.
Started by Mike_J |
7 Replies
2950 Views |
March 09, 2021, 11:47:20 am by PRR |
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5 Replies
2483 Views |
March 09, 2021, 11:05:30 am by wittyjeff |
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24 Replies
10918 Views |
March 09, 2021, 08:43:39 am by dragonworks |
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Preamp noise - repairable?
Started by jordan86 |
11 Replies
3317 Views |
March 09, 2021, 08:23:41 am by jordan86 |
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Marshall 1987s hum.
Started by Rich_C |
12 Replies
3592 Views |
March 09, 2021, 03:03:09 am by Tone Junkie |
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Polarity wiring filaments
Started by dude |
8 Replies
4130 Views |
March 08, 2021, 09:20:33 pm by Sonny ReVerb |
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3 Replies
1959 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
1712 Views |
March 08, 2021, 01:12:06 pm by Ghetto_Soundwave |
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24 Replies
5770 Views |
March 08, 2021, 11:49:20 am by pgussler |
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5 Replies
2334 Views |
March 07, 2021, 01:39:18 pm by PharmRock |
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2 Replies
1784 Views |
March 07, 2021, 12:52:17 pm by luthierwnc |
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25 Replies
6482 Views |
March 07, 2021, 08:28:55 am by RadioComm |
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2 Replies
2291 Views |
March 07, 2021, 04:38:49 am by pdf64 |
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0 Replies
1637 Views |
March 07, 2021, 03:42:33 am by Latole |
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45 Replies
9417 Views |
March 06, 2021, 09:18:02 pm by acheld |
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Super Champ X2 => RR763
Started by Jacob |
2 Replies
1963 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
7458 Views |
March 06, 2021, 08:03:25 am by sluckey |
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3 Replies
2291 Views |
March 06, 2021, 02:01:12 am by silverfox |
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27 Replies
6609 Views |
March 05, 2021, 06:36:45 pm by Jatchley |
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Poweramp Layout Xfmr Location questions
Started by markmalin |
6 Replies
2526 Views |
March 05, 2021, 02:52:15 pm by markmalin |
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Epiphone comet ea-rvt32 ot
Started by Simmie |
3 Replies
2171 Views |
March 05, 2021, 02:46:50 pm by Simmie |
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72 Replies
13912 Views |
March 04, 2021, 11:53:28 pm by proaudioguy |
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6v6 Plexi resistor value query
Started by Mehfuzhoss |
14 Replies
3924 Views |
March 04, 2021, 07:30:42 pm by PRR |
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Adding Filter Nodes?
Started by dankinzelman |
16 Replies
4419 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
6533 Views |
March 04, 2021, 04:52:01 pm by wsscott |
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