Welcome To the Hoffman Amplifiers Forum
September 08, 2026, 03:40:03 pm
Welcome To the Hoffman Amplifiers ForumSeptember 08, 2026, 03:40:03 pm | ||
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| HexEnduction and 127 Guests are viewing this board. | ||||
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Royal Vocal Amp 90 Mystery
Started by AndreH |
5 Replies
5405 Views |
June 14, 2026, 05:56:02 amby AndreH |
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Repairs - Peavey Windsor Studio
Started by Shrek |
7 Replies
7838 Views |
June 11, 2026, 07:36:11 am by Shrek |
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silvertone 1484
Started by johnfromcyrene |
23 Replies
14482 Views |
June 09, 2026, 07:59:06 am by passaloutre |
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10 Replies
8049 Views |
June 07, 2026, 12:51:53 pm by HotBluePlates |
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Valco National 1201 1202 Sportsman
Started by bmccowan |
7 Replies
5330 Views |
June 04, 2026, 02:53:42 pm by passaloutre |
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I just had to mess with it...
Started by slim66 |
2 Replies
4521 Views |
June 02, 2026, 11:59:53 pm by tubeswell |
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Oscilloscope question
Started by Banjan73 |
27 Replies
13176 Views |
June 02, 2026, 06:13:24 pm by astronomicum |
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Ampeg SB-12 inspired amp
Started by Banjan73 |
9 Replies
8537 Views |
June 02, 2026, 12:26:27 am by Banjan73 |
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2 Replies
3929 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
12540 Views |
May 31, 2026, 03:21:35 pm by murrayatuptown |
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JCM800 2204 diagram review
Started by a90s2cs |
13 Replies
40260 Views |
May 30, 2026, 01:41:23 pm by pdf64 |
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31 Replies
21386 Views |
May 29, 2026, 06:10:04 pm by AX84CH |
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Selling amps question
Started by Blooze |
7 Replies
5672 Views |
May 28, 2026, 01:23:04 pm by bmccowan |
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17 Replies
10282 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
17514 Views |
May 27, 2026, 11:40:56 pm by 12AX7 |
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4 Replies
3422 Views |
May 27, 2026, 07:06:45 pm by glass54 |
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12 Replies
6288 Views |
May 27, 2026, 08:16:11 am by passaloutre |
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8 Replies
3470 Views |
May 27, 2026, 07:46:47 am by JPK |
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5 Replies
2875 Views |
May 25, 2026, 12:14:26 pm by Yosser |
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20 Replies
17843 Views |
May 23, 2026, 09:18:30 am by Lectroid |
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9 Replies
7754 Views |
May 23, 2026, 07:11:42 am by pbman1953 |
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5f2a reverb design
Started by tomojt |
3 Replies
3987 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
5627 Views |
May 22, 2026, 05:53:41 am by tomojt |
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Octave down effect with tubes
Started by Lauri |
27 Replies
18434 Views |
May 22, 2026, 05:08:20 am by Lauri |
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AC30 TremVib Issue
Started by inapier |
2 Replies
3148 Views |
May 20, 2026, 01:47:17 pm by inapier |
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3 Replies
3455 Views |
May 19, 2026, 12:31:25 am by AlNewman |
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Tube rectifier formula
Started by Yosser |
7 Replies
3767 Views |
May 18, 2026, 11:18:29 am by Merlin |
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AC15 C1 modifications?
Started by leonc |
3 Replies
2284 Views |
May 16, 2026, 01:55:46 pm by sluckey |
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Tremolo still Ticking
Started by JustMike |
12 Replies
10781 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
3970 Views |
May 15, 2026, 05:12:10 am by Yosser |
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67 Replies
16870 Views |
May 12, 2026, 12:45:39 pm by wsscott |
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0 Replies
2617 Views |
May 10, 2026, 06:43:33 pm by 12AX7 |
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Bias question
Started by 12AX7 |
24 Replies
7389 Views |
May 09, 2026, 03:26:43 pm by 12AX7 |
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Trem-O-Nator snags
Started by peacocksuit |
9 Replies
4561 Views |
May 08, 2026, 03:02:13 pm by peacocksuit |
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4 Replies
3116 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
2581 Views |
May 05, 2026, 07:54:54 pm by 12AX7 |
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Super 6G4A speed Pot
Started by sam |
2 Replies
2606 Views |
May 03, 2026, 05:17:06 pm by sam |
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1 Replies
2456 Views |
May 03, 2026, 11:06:37 am by Yosser |
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AO-35 Schematics
Started by Texson |
7 Replies
4600 Views |
May 03, 2026, 10:18:24 am by dude |
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11 Replies
4544 Views |
May 02, 2026, 10:49:16 am by Colas LeGrippa |
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Mesa tc-50 questions
Started by Beezerboy |
3 Replies
2728 Views |
May 01, 2026, 07:52:20 pm by jim |
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10 Replies
10628 Views |
May 01, 2026, 03:03:07 am by Digsby |
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3 Replies
2819 Views |
April 30, 2026, 01:14:36 am by pdf64 |
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96 Replies
25986 Views |
April 27, 2026, 03:27:43 pm by Platefire |
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21 Replies
9935 Views |
April 27, 2026, 01:35:51 pm by sluckey |
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A Question about system design
Started by pbman1953 |
8 Replies
4877 Views |
April 27, 2026, 08:05:51 am by wsscott |
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4 Replies
2780 Views |
April 24, 2026, 10:38:32 am by pbman1953 |
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14 Replies
6316 Views |
April 24, 2026, 05:48:35 am by HotBluePlates |
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FILMOSOUND REBUILT
Started by jujudublues |
28 Replies
12974 Views |
April 23, 2026, 04:54:42 pm by Graydigger |
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Layout once-over?
Started by johnnyreece |
1 Replies
2485 Views |
April 22, 2026, 03:41:08 pm by acheld |
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