Welcome To the Hoffman Amplifiers Forum
January 24, 2026, 05:20:11 am
Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 05:20:11 am | ||
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| 0 Members and 38 Guests are viewing this board. | ||||
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8 Replies
4696 Views |
December 14, 2022, 10:25:39 amby Voxbox |
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Marshall Origin mod troubleshooting
Started by Ledvedder |
6 Replies
4346 Views |
December 14, 2022, 07:41:12 am by Ledvedder |
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High VAC on B+
Started by CrocMule |
16 Replies
4760 Views |
December 14, 2022, 06:11:54 am by HotBluePlates |
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Mod filters
Started by dude |
4 Replies
3553 Views |
December 14, 2022, 05:44:34 am by HotBluePlates |
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4 Replies
2685 Views |
December 13, 2022, 11:44:09 pm by swingarm |
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Harvard Amp Mod
Started by TurboGuitarMelton |
14 Replies
5422 Views |
December 13, 2022, 01:29:02 pm by CascoSieg |
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6 Replies
3786 Views |
December 13, 2022, 09:09:08 am by punkykatt |
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8 Replies
4125 Views |
December 12, 2022, 12:26:21 pm by tubeswell |
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12 Replies
4441 Views |
December 11, 2022, 06:36:02 pm by fazeka |
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5f6a bias tap glow
Started by tommyzcat |
10 Replies
3201 Views |
December 11, 2022, 03:08:48 pm by tommyzcat |
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11 Replies
3672 Views |
December 11, 2022, 02:27:53 pm by sluckey |
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mosfet trem blowing PS resistors...
Started by CascoSieg |
13 Replies
4151 Views |
December 11, 2022, 11:20:31 am by CascoSieg |
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EL34 suppressor grid
Started by SoundCity85 |
5 Replies
2900 Views |
December 11, 2022, 09:51:31 am by SoundCity85 |
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40 V AC in the green terminals of 6,3V
Started by rafaelctt |
32 Replies
7300 Views |
December 11, 2022, 08:54:57 am by sluckey |
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290AX wiring with a Champ 600 reissue
Started by JPK |
4 Replies
2757 Views |
December 10, 2022, 01:45:51 pm by JPK |
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8 Replies
3285 Views |
December 10, 2022, 06:32:19 am by kagliostro |
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Revisit- Fender Super Twin- New Project
Started by pbman1953 |
14 Replies
4109 Views |
December 09, 2022, 04:40:03 pm by pbman1953 |
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3 Replies
2505 Views |
December 09, 2022, 07:41:06 am by BrainDeadAmps |
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23 Replies
5369 Views |
December 09, 2022, 12:03:31 am by Platefire |
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5 Replies
2808 Views |
December 08, 2022, 05:07:44 pm by fdesalvo |
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14 Replies
4749 Views |
December 08, 2022, 09:19:02 am by kagliostro |
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AB764 Vibrochamp build questions
Started by J3ona1 |
2 Replies
2405 Views |
December 07, 2022, 10:29:05 pm by J3ona1 |
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Another PR build post with questions…
Started by Jalmeida |
1 Replies
1949 Views |
December 06, 2022, 11:18:05 pm by sluckey |
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Need help with something wierd
Started by RoninAudio |
6 Replies
2893 Views |
December 06, 2022, 01:05:12 pm by RoninAudio |
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6 Replies
3457 Views |
December 05, 2022, 10:13:49 pm by JPK |
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New 5E3 build bias check - am I ok?
Started by JPK |
10 Replies
3928 Views |
December 05, 2022, 01:22:02 pm by Voxbox |
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Changing this schematic presence control
Started by dude |
8 Replies
3918 Views |
December 05, 2022, 12:21:48 pm by dude |
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Output transformer ringing
Started by Esquirefreak |
0 Replies
2195 Views |
December 05, 2022, 11:33:53 am by Esquirefreak |
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Amp Projects
Started by Lectroid |
19 Replies
5941 Views |
December 04, 2022, 07:18:54 pm by PRR |
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11 Replies
3940 Views |
December 04, 2022, 02:07:36 pm by kagliostro |
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Cathode biased Blues Junior new project
Started by acheld |
13 Replies
5205 Views |
December 04, 2022, 11:01:31 am by pdf64 |
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19 Replies
5832 Views |
December 03, 2022, 11:26:43 am by bmccowan |
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Passive Effects Loop Implementation
Started by McAbe |
9 Replies
5179 Views |
December 03, 2022, 02:47:37 am by pdf64 |
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3 Replies
2458 Views |
December 02, 2022, 06:27:10 pm by kagliostro |
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Power transformer wiring question
Started by Erik Aa |
23 Replies
6393 Views |
December 02, 2022, 01:38:04 pm by Erik Aa |
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59 Replies
70054 Views |
December 01, 2022, 04:01:27 pm by shooter |
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The danger of vacuum tubes
Started by isaac_teller |
5 Replies
3169 Views |
December 01, 2022, 03:44:28 pm by mresistor |
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Switch between 2 different output valves
Started by Paulycoo |
16 Replies
4419 Views |
December 01, 2022, 11:20:55 am by kagliostro |
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7 Replies
2774 Views |
November 30, 2022, 01:21:48 pm by fdesalvo |
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parallel input jack wiring
Started by BrainDeadAmps |
2 Replies
2300 Views |
November 30, 2022, 12:33:00 pm by BrainDeadAmps |
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16 Replies
4436 Views |
November 30, 2022, 11:58:57 am by BetterOffShred |
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AC10 Intensity in AC4? <<Solved>>
Started by dwinstonwood |
14 Replies
4761 Views |
November 30, 2022, 08:58:41 am by dwinstonwood |
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29 Replies
6504 Views |
November 29, 2022, 10:11:29 pm by JPK |
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Howling Feedback in Reveb Recovery
Started by jewishjay |
5 Replies
2956 Views |
November 29, 2022, 11:02:35 am by GroundhogKen |
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12 Replies
4172 Views |
November 29, 2022, 07:33:48 am by Williamblake |
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15 Replies
12025 Views |
November 27, 2022, 05:57:03 pm by kagliostro |
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Vox AC4 question. Need explanations.
Started by johngovan |
9 Replies
3802 Views |
November 27, 2022, 03:49:28 pm by kagliostro |
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10 Replies
4173 Views |
November 27, 2022, 04:59:22 am by fkitch |
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7 Replies
3460 Views |
November 26, 2022, 05:01:22 pm by PRR |
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2 Replies
2505 Views |
November 26, 2022, 10:42:19 am by acheld |
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