Welcome To the Hoffman Amplifiers Forum
September 06, 2025, 10:04:35 am
Welcome To the Hoffman Amplifiers ForumSeptember 06, 2025, 10:04:35 am | ||
| Subject / Started by | Replies / Views | Last post  |
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Princeton Reverb hum problem
Started by texwest |
12 Replies
2815 Views |
October 24, 2021, 05:52:33 pmby texwest |
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Will this work to reduce screen voltage?
Started by brewdude |
29 Replies
5355 Views |
October 24, 2021, 12:28:13 pm by mresistor |
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Finding a short
Started by dragonworks |
45 Replies
7356 Views |
October 23, 2021, 02:52:21 am by dragonworks |
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Am done with PEC for good.
Started by Champ_49 |
21 Replies
8487 Views |
October 22, 2021, 02:55:07 pm by joesatch |
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Single ended amp microphonic problem.
Started by Tapsnap |
6 Replies
2183 Views |
October 22, 2021, 03:35:15 am by shooter |
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Transfo line out
Started by Colas LeGrippa |
1 Replies
1595 Views |
October 21, 2021, 09:22:52 pm by Colas LeGrippa |
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Help finding bias pot
Started by dude |
11 Replies
3011 Views |
October 20, 2021, 10:43:41 pm by Blooze |
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MusicMan 2475-130 design error?
Started by vintasonic |
1 Replies
1913 Views |
October 20, 2021, 03:21:03 pm by sluckey |
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tweed od lite
Started by BrainDeadAmps |
9 Replies
3281 Views |
October 19, 2021, 08:00:44 pm by PRR |
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Carolina Songbird + build started
Started by BetterOffShred |
2 Replies
2369 Views |
October 18, 2021, 04:33:51 pm by BetterOffShred |
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75 Replies
21602 Views |
October 18, 2021, 03:24:52 pm by Bieworm |
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1 Replies
1702 Views |
October 18, 2021, 02:33:59 pm by PRR |
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37 Replies
6711 Views |
October 17, 2021, 03:12:45 pm by Diverted |
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3 Replies
1831 Views |
October 17, 2021, 01:21:52 pm by sluckey |
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Marshall VS100 Power Transformer Repurpose
Started by TIMBO |
3 Replies
1815 Views |
October 17, 2021, 12:04:03 pm by PRR |
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Carmen Ghia clone value questions
Started by creekrat |
21 Replies
9961 Views |
October 16, 2021, 09:31:27 pm by porkzo |
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16 Replies
3107 Views |
October 16, 2021, 05:13:55 pm by sluckey |
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Orange AD15 Style Amp
Started by frankenxtein |
11 Replies
3834 Views |
October 16, 2021, 12:09:54 pm by frankenxtein |
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presence control not working
Started by punkykatt |
7 Replies
2204 Views |
October 16, 2021, 10:00:02 am by punkykatt |
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Blank JTM 45 Chassis source?
Started by dragonbat13 |
12 Replies
3069 Views |
October 16, 2021, 12:26:51 am by Tone Junkie |
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6420 tone control buzzy?
Started by ampnewbie |
2 Replies
1534 Views |
October 15, 2021, 10:12:26 pm by ampnewbie |
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Fender Blues Jr Build - Amp Noise
Started by Tbone55 |
14 Replies
3577 Views |
October 15, 2021, 07:29:47 pm by Tbone55 |
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120Hz hum starts when amp warms up?
Started by premiumplus |
16 Replies
3452 Views |
October 15, 2021, 07:29:13 pm by premiumplus |
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5e3 power tube grid stoppers
Started by John Clifford |
2 Replies
2281 Views |
October 15, 2021, 02:20:00 pm by John Clifford |
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6 Replies
2815 Views |
October 15, 2021, 02:04:45 pm by Sesh |
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0 Replies
1604 Views |
October 15, 2021, 09:51:52 am by EL34 |
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ac in proximity to octal power tube
Started by joesatch |
1 Replies
1566 Views |
October 13, 2021, 07:38:11 pm by glass54 |
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Savage Rohr 15 class A?
Started by John Clifford |
23 Replies
4905 Views |
October 13, 2021, 04:40:28 pm by pdf64 |
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Cathode bias R
Started by dude |
19 Replies
4499 Views |
October 13, 2021, 10:59:03 am by Willabe |
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AA864 musing 6L6 to 6V6
Started by ok_state_blues |
8 Replies
2328 Views |
October 12, 2021, 10:57:58 pm by ok_state_blues |
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OT and PT orientation
Started by dude |
24 Replies
4873 Views |
October 12, 2021, 09:56:36 pm by sluckey |
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8 Replies
3308 Views |
October 12, 2021, 06:47:14 pm by sluckey |
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Which 15-20W amp has most clean headroom?
Started by acheld |
39 Replies
8318 Views |
October 12, 2021, 07:46:07 am by jordan86 |
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0 Replies
1847 Views |
October 11, 2021, 09:27:33 pm by timmyjoe |
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7 Replies
2550 Views |
October 11, 2021, 12:48:52 pm by sluckey |
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A look inside a Dr. Z Maz Jr.
Started by DuaneOh |
17 Replies
8611 Views |
October 10, 2021, 09:42:14 pm by DougGuy |
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Full wave bias supply
Started by Vlada |
20 Replies
4209 Views |
October 10, 2021, 05:25:20 pm by HotBluePlates |
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4 Replies
2114 Views |
October 09, 2021, 11:25:13 am by texwest |
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noise coming from reverb recovery circuit
Started by phsyconoodler « 1 2 » |
53 Replies
16591 Views |
October 09, 2021, 02:31:31 am by Leevi |
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gibson falcon ga-19rvt
Started by DummyLoad |
15 Replies
9193 Views |
October 08, 2021, 04:19:20 pm by mmaguire9 |
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2 Replies
1490 Views |
October 08, 2021, 10:00:17 am by acheld |
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Well, I've never built a reverb...
Started by dwinstonwood |
7 Replies
2333 Views |
October 08, 2021, 07:12:41 am by 66Strat |
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Star washers for pots.
Started by joesatch |
15 Replies
4059 Views |
October 07, 2021, 10:19:56 pm by Willabe |
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Capacitor Voltage ever too high?
Started by timmyjoe |
9 Replies
3708 Views |
October 06, 2021, 08:40:49 pm by Willabe |
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DeOxit question.
Started by dragonworks |
10 Replies
2948 Views |
October 06, 2021, 06:22:28 pm by sluckey |
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Multi Meter Provides a Path to Ground?
Started by jewishjay |
13 Replies
2992 Views |
October 06, 2021, 04:03:41 pm by pdf64 |
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Building a LBL question
Started by dragonworks |
8 Replies
2459 Views |
October 06, 2021, 12:06:54 am by thetragichero |
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67 Vibro Champ
Started by dude |
35 Replies
6566 Views |
October 05, 2021, 08:32:47 pm by dude |
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RCA 6L6 GC
Started by dude |
3 Replies
1600 Views |
October 05, 2021, 06:37:19 pm by HotBluePlates |
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Bias supply "idiot resistor"
Started by PharmRock |
4 Replies
2792 Views |
October 05, 2021, 08:43:07 am by sluckey |
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