Welcome To the Hoffman Amplifiers Forum
August 29, 2026, 08:30:22 pm
Welcome To the Hoffman Amplifiers ForumAugust 29, 2026, 08:30:22 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 38 Guests are viewing this board. | ||||
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Split Cathodes
Started by shaun |
14 Replies
7516 Views |
June 05, 2023, 11:15:32 pmby shaun |
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DC heaters and LED pilot light
Started by fossilshark |
1 Replies
3967 Views |
June 05, 2023, 07:32:16 pm by sluckey |
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Name the component
Started by Lectroid |
10 Replies
7007 Views |
June 05, 2023, 09:58:53 am by Lectroid |
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Good tube-amp-oriented podcast
Started by Lectroid |
1 Replies
4708 Views |
June 04, 2023, 08:35:53 pm by passaloutre |
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small chassis layout
Started by joesatch |
8 Replies
5691 Views |
June 04, 2023, 07:15:03 pm by sluckey |
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smaller AB761
Started by Beezerboy |
10 Replies
6370 Views |
June 04, 2023, 12:56:17 pm by Beezerboy |
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0 Replies
3594 Views |
June 04, 2023, 09:42:08 am by marshallguy |
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KT90EH biasing discrepancy
Started by marshallguy |
5 Replies
5559 Views |
June 04, 2023, 08:46:48 am by marshallguy |
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Marshall DSL 20R
Started by luthiernc |
0 Replies
3982 Views |
June 03, 2023, 06:05:45 am by luthiernc |
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13 Replies
6705 Views |
June 02, 2023, 02:00:46 pm by PRR |
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Parallel triode Rg values
Started by Esquirefreak |
3 Replies
4176 Views |
June 01, 2023, 01:42:27 pm by Esquirefreak |
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8 Replies
7297 Views |
June 01, 2023, 12:51:18 pm by tubeswell |
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Vox AC-15 Vibrato channel low volume
Started by sluckey |
8 Replies
6721 Views |
May 31, 2023, 10:31:13 pm by sluckey |
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8 Replies
6528 Views |
May 31, 2023, 04:59:27 pm by fossilshark |
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Bias Calculations for Cathode bias??
Started by Jalmeida |
10 Replies
7547 Views |
May 31, 2023, 11:02:58 am by Lectroid |
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30ish watt bass amp
Started by Beezerboy |
16 Replies
7497 Views |
May 30, 2023, 08:19:17 am by Lectroid |
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28 Replies
10989 Views |
May 29, 2023, 06:04:07 pm by jeff |
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11 Replies
6150 Views |
May 29, 2023, 04:27:27 pm by mresistor |
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11 Replies
6334 Views |
May 29, 2023, 12:54:43 pm by dude |
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Gretsch Playboy 6156T No Schematic Found
Started by plexi50 |
12 Replies
7085 Views |
May 29, 2023, 11:07:44 am by plexi50 |
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pre-made fwb rectifiers
Started by joesatch |
11 Replies
6513 Views |
May 29, 2023, 10:28:40 am by thetragichero |
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5 Replies
5374 Views |
May 28, 2023, 04:06:11 pm by Porpoise Head |
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1964 Vibroverb
Started by Rockranger |
9 Replies
6087 Views |
May 28, 2023, 12:39:32 pm by Rockranger |
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Effects Loop Questions
Started by Rontone |
6 Replies
6058 Views |
May 28, 2023, 11:48:55 am by Rontone |
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Nolan 50w Multi Purpose Amp Repair
Started by Rontone |
7 Replies
5999 Views |
May 28, 2023, 09:40:00 am by Rontone |
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Traynor YVM-1 much needed repair
Started by fossilshark |
11 Replies
6645 Views |
May 28, 2023, 09:15:08 am by sluckey |
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13 Replies
7723 Views |
May 27, 2023, 06:27:19 am by p2pAmps |
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8 Replies
6460 Views |
May 26, 2023, 01:40:21 pm by tdvt |
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Primary voltage readings
Started by TF2112 |
6 Replies
4999 Views |
May 26, 2023, 11:37:55 am by TF2112 |
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Hot switch or JCM 800
Started by Bigampman |
9 Replies
6220 Views |
May 26, 2023, 10:59:24 am by pdf64 |
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Gibson GA-16T/18T done
Started by Blooze |
29 Replies
12510 Views |
May 25, 2023, 08:40:30 pm by Blooze |
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6SJ7 driven tremolo? Silvertone1333
Started by Jerry garrcia |
1 Replies
4078 Views |
May 25, 2023, 04:42:40 pm by sluckey |
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Hum from power section
Started by Colas LeGrippa |
11 Replies
6349 Views |
May 25, 2023, 12:09:21 pm by Colas LeGrippa |
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jcm800 2204 noisy
Started by fossilshark |
3 Replies
4864 Views |
May 25, 2023, 09:22:14 am by fossilshark |
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Marshall 2550 schematic
Started by Leevi |
1 Replies
5139 Views |
May 25, 2023, 06:30:26 am by sluckey |
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7 Replies
5651 Views |
May 25, 2023, 06:21:13 am by sluckey |
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5 Replies
4775 Views |
May 25, 2023, 02:46:55 am by kagliostro |
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32 Replies
13696 Views |
May 24, 2023, 08:46:35 pm by Apexelectric |
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0 Replies
4151 Views |
May 24, 2023, 07:16:08 pm by marshallguy |
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5 Replies
6147 Views |
May 23, 2023, 09:36:41 pm by Amped |
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Cathode bias amp variable resistor
Started by Colas LeGrippa |
19 Replies
9752 Views |
May 23, 2023, 07:04:33 pm by Colas LeGrippa |
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EF86 Microphonics and RF coupling?
Started by Jalmeida |
1 Replies
4138 Views |
May 23, 2023, 12:46:50 pm by Williamblake |
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Rob Robinette Champ Micro Build
Started by AndrewD |
6 Replies
5939 Views |
May 23, 2023, 06:45:35 am by kagliostro |
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Weird power amp wiring
Started by Leevi |
3 Replies
4572 Views |
May 22, 2023, 04:13:35 pm by PRR |
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21 Replies
11119 Views |
May 22, 2023, 04:32:28 am by pdf64 |
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8 Replies
6269 Views |
May 21, 2023, 08:27:23 pm by bmccowan |
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Gibson GA-18T Tremolo
Started by Blooze |
10 Replies
7582 Views |
May 21, 2023, 09:05:14 am by sluckey |
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1 Replies
4377 Views |
May 20, 2023, 07:37:59 pm by 72Blazer |
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PP valve amp KT88 BIAS-question
Started by cfortner |
22 Replies
9786 Views |
May 20, 2023, 04:36:51 pm by cfortner |
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Filmosound 202 Help
Started by oogabooga23 |
6 Replies
6004 Views |
May 20, 2023, 12:27:31 pm by BrainDeadAmps |
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