Welcome To the Hoffman Amplifiers Forum
June 09, 2026, 09:00:50 pm
Welcome To the Hoffman Amplifiers ForumJune 09, 2026, 09:00:50 pm | ||
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Please do not use VPN's
Started by EL34 |
48 Replies
18896 Views |
February 26, 2026, 11:41:16 amby Greenwichpaul |
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ALL-TIME great information
Started by PRR |
0 Replies
55880 Views |
April 16, 2018, 08:09:37 pm by PRR |
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1 Replies
62885 Views |
October 30, 2015, 01:24:25 pm by EL34 |
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What's this board for?
Started by EL34 |
0 Replies
41056 Views |
May 28, 2009, 04:14:29 pm by EL34 |
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First amp build
Started by Mongrel714 |
41 Replies
2138 Views |
June 09, 2026, 06:07:06 pm by Mongrel714 |
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Any tips for taming a wild 5E3?
Started by slim66 |
5 Replies
157 Views |
June 09, 2026, 02:02:53 pm by sluckey |
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Tube Preamp SMPS
Started by DummyLoad |
6 Replies
2024 Views |
June 09, 2026, 08:51:17 am by Jonas |
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silvertone 1484
Started by johnfromcyrene |
23 Replies
934 Views |
June 09, 2026, 07:59:06 am by passaloutre |
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Bias Help for Rob Robinette JCM800 6V6
Started by rud85ny |
10 Replies
474 Views |
June 08, 2026, 11:35:33 pm by sluckey |
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10 Replies
506 Views |
June 07, 2026, 12:51:53 pm by HotBluePlates |
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Valco National 1201 1202 Sportsman
Started by bmccowan |
7 Replies
277 Views |
June 04, 2026, 02:53:42 pm by passaloutre |
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63 Replies
13261 Views |
June 04, 2026, 09:59:40 am by kagliostro |
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I just had to mess with it...
Started by slim66 |
2 Replies
362 Views |
June 02, 2026, 11:59:53 pm by tubeswell |
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Oscilloscope question
Started by Banjan73 |
27 Replies
1059 Views |
June 02, 2026, 06:13:24 pm by astronomicum |
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Ampeg SB-12 inspired amp
Started by Banjan73 |
9 Replies
2138 Views |
June 02, 2026, 12:26:27 am by Banjan73 |
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2 Replies
494 Views |
June 01, 2026, 12:40:35 am by DummyLoad |
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Some questions about the GU-17
Started by ECV02 |
13 Replies
8573 Views |
May 31, 2026, 03:21:35 pm by murrayatuptown |
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JCM800 2204 diagram review
Started by a90s2cs |
13 Replies
34327 Views |
May 30, 2026, 01:41:23 pm by pdf64 |
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Princeton Reverb circuit refinements
Started by tristanc |
34 Replies
11071 Views |
May 29, 2026, 09:20:43 pm by johnfromcyrene |
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31 Replies
8803 Views |
May 29, 2026, 06:10:04 pm by AX84CH |
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Selling amps question
Started by Blooze |
7 Replies
521 Views |
May 28, 2026, 01:23:04 pm by bmccowan |
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17 Replies
6350 Views |
May 28, 2026, 08:45:32 am by strangbangthang |
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help with classic 30 mod please
Started by 12AX7 |
49 Replies
9140 Views |
May 27, 2026, 11:40:56 pm by 12AX7 |
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4 Replies
353 Views |
May 27, 2026, 07:06:45 pm by glass54 |
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12 Replies
756 Views |
May 27, 2026, 08:16:11 am by passaloutre |
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8 Replies
511 Views |
May 27, 2026, 07:46:47 am by JPK |
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5 Replies
447 Views |
May 25, 2026, 12:14:26 pm by Yosser |
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Selmer Zodiac Twin 30
Started by johnfromcyrene |
43 Replies
3902 Views |
May 24, 2026, 08:50:33 am by sluckey |
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20 Replies
12083 Views |
May 23, 2026, 09:18:30 am by Lectroid |
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9 Replies
4343 Views |
May 23, 2026, 07:11:42 am by pbman1953 |
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5f2a reverb design
Started by tomojt |
3 Replies
485 Views |
May 22, 2026, 11:35:54 am by kagliostro |
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EH-150/185 build complete
Started by Jerry garrcia |
2 Replies
3678 Views |
May 22, 2026, 05:53:41 am by tomojt |
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Octave down effect with tubes
Started by Lauri |
27 Replies
9454 Views |
May 22, 2026, 05:08:20 am by Lauri |
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AC30 TremVib Issue
Started by inapier |
2 Replies
472 Views |
May 20, 2026, 01:47:17 pm by inapier |
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3 Replies
585 Views |
May 19, 2026, 12:31:25 am by AlNewman |
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Tube rectifier formula
Started by Yosser |
7 Replies
1449 Views |
May 18, 2026, 11:18:29 am by Merlin |
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AC15 C1 modifications?
Started by leonc |
3 Replies
555 Views |
May 16, 2026, 01:55:46 pm by sluckey |
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Tremolo still Ticking
Started by JustMike |
12 Replies
8578 Views |
May 15, 2026, 06:47:12 am by Fozziemusic |
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Backup diodes on a gz34 rectifier
Started by Yosser |
6 Replies
1926 Views |
May 15, 2026, 05:12:10 am by Yosser |
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67 Replies
10348 Views |
May 12, 2026, 12:45:39 pm by wsscott |
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0 Replies
1340 Views |
May 10, 2026, 06:43:33 pm by 12AX7 |
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Bias question
Started by 12AX7 |
24 Replies
4747 Views |
May 09, 2026, 03:26:43 pm by 12AX7 |
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Trem-O-Nator snags
Started by peacocksuit |
9 Replies
2807 Views |
May 08, 2026, 03:02:13 pm by peacocksuit |
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4 Replies
1816 Views |
May 06, 2026, 07:59:50 am by MORE_Guitar_Solos |
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Classic 30 tone mod
Started by 12AX7 |
2 Replies
1598 Views |
May 05, 2026, 07:54:54 pm by 12AX7 |
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Super 6G4A speed Pot
Started by sam |
2 Replies
1662 Views |
May 03, 2026, 05:17:06 pm by sam |
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1 Replies
1490 Views |
May 03, 2026, 11:06:37 am by Yosser |
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AO-35 Schematics
Started by Texson |
7 Replies
3205 Views |
May 03, 2026, 10:18:24 am by dude |
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11 Replies
3123 Views |
May 02, 2026, 10:49:16 am by Colas LeGrippa |
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Mesa tc-50 questions
Started by Beezerboy |
3 Replies
1804 Views |
May 01, 2026, 07:52:20 pm by jim |
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