Welcome To the Hoffman Amplifiers Forum
October 23, 2025, 05:43:09 am
Welcome To the Hoffman Amplifiers ForumOctober 23, 2025, 05:43:09 am | ||
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Princeton Reverb with 4ohm output?
Started by evancorylevine |
14 Replies
5358 Views |
October 13, 2017, 08:36:04 amby evancorylevine |
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JMP 50 with factory wrong grid resistors
Started by timbraun |
9 Replies
4743 Views |
October 13, 2017, 12:41:00 am by Leevi |
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Help indentifying my mystery chassis
Started by bnwitt |
29 Replies
6080 Views |
October 12, 2017, 03:40:02 pm by bnwitt |
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2 Replies
2453 Views |
October 12, 2017, 01:33:03 pm by sluckey |
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Recommended Filter cap size
Started by dude |
6 Replies
2741 Views |
October 12, 2017, 12:18:07 pm by sluckey |
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6 Replies
2983 Views |
October 12, 2017, 08:13:22 am by Crate50watt |
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Working with unknown OPT
Started by 92Volts |
5 Replies
2867 Views |
October 11, 2017, 02:34:30 pm by tubeswell |
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New build ideas/recommendations
Started by davidwpack |
13 Replies
4053 Views |
October 10, 2017, 10:44:18 pm by davidwpack |
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MOSFET screen regulation
Started by Sonny ReVerb |
3 Replies
2668 Views |
October 10, 2017, 04:58:19 pm by kagliostro |
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53 Replies
10777 Views |
October 10, 2017, 11:09:58 am by DummyLoad |
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Baldwin to 5F6A done
Started by mresistor |
15 Replies
4106 Views |
October 10, 2017, 08:17:23 am by mresistor |
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1-tube reverb issue
Started by aabbs20 |
8 Replies
2814 Views |
October 10, 2017, 12:34:34 am by aabbs20 |
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12 Replies
3844 Views |
October 09, 2017, 03:14:13 am by Paulycoo |
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Unknown PT - max current? (5v winding)
Started by alange5 |
6 Replies
2496 Views |
October 09, 2017, 12:49:24 am by DummyLoad |
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TW Express with reverb
Started by adamG |
17 Replies
6882 Views |
October 08, 2017, 08:19:44 am by MFowler |
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1 Replies
1947 Views |
October 08, 2017, 06:52:53 am by sluckey |
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9 Replies
4037 Views |
October 07, 2017, 01:20:43 pm by kagliostro |
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Clean Acoustic amp with SS output
Started by guitardude57 |
3 Replies
2036 Views |
October 07, 2017, 11:55:34 am by shooter |
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Mounting screw clearances
Started by thor2015 |
2 Replies
1877 Views |
October 07, 2017, 11:15:12 am by thor2015 |
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Power Amp Grid Leak Resistors
Started by mwelch55 |
6 Replies
6768 Views |
October 06, 2017, 04:24:35 pm by timbraun |
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3 Replies
2622 Views |
October 06, 2017, 04:06:49 pm by Ed_Chambley |
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Which Resister should I get ?
Started by TerryD |
2 Replies
1931 Views |
October 06, 2017, 01:46:55 pm by TerryD |
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Fender Hot Rod Deluxe maybe Reverb Problem
Started by TerryD |
4 Replies
2803 Views |
October 06, 2017, 12:51:56 pm by SILVERGUN |
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Hammond 290GX Transformer laying down?
Started by timbraun |
8 Replies
4862 Views |
October 04, 2017, 05:54:05 pm by timbraun |
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10 Replies
4417 Views |
October 04, 2017, 05:27:35 pm by ClippIn4tae |
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Kay 803 Grounding
Started by dpm309 |
7 Replies
3860 Views |
October 04, 2017, 04:23:08 pm by PRR |
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replacing Batteries for a Wall Wart
Started by dude |
18 Replies
4230 Views |
October 04, 2017, 01:28:43 pm by dude |
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Advice on Blues Breaker 2X12 type build
Started by bnwitt |
13 Replies
4822 Views |
October 04, 2017, 02:43:05 am by purpletele |
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Blues Junior output transformer specs
Started by sarkipinty |
12 Replies
8061 Views |
October 04, 2017, 12:51:47 am by DummyLoad |
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Need help with a AB763 Deluxe Lite
Started by labb |
6 Replies
2370 Views |
October 03, 2017, 04:26:55 pm by sluckey |
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TOS next build?
Started by dennyg |
9 Replies
3164 Views |
October 03, 2017, 04:22:36 pm by sluckey |
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12 Replies
4146 Views |
October 03, 2017, 07:34:45 am by bnwitt |
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Supro 1624T - fixed bias?
Started by adamG |
23 Replies
10427 Views |
October 03, 2017, 03:41:56 am by adamG |
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Shuguang 274B rectifier anyone?
Started by mresistor |
3 Replies
2603 Views |
October 03, 2017, 12:30:18 am by tubeswell |
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Presence and Resonance Controls
Started by JKRamsey1991 |
6 Replies
5079 Views |
October 02, 2017, 09:17:15 pm by mresistor |
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14 Replies
8688 Views |
October 02, 2017, 04:22:27 pm by Ed_Chambley |
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149 Replies
31810 Views |
October 02, 2017, 09:22:46 am by EL34 |
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Hoffman AB763 SR Cap Filter Board
Started by bnwitt |
2 Replies
1885 Views |
October 01, 2017, 06:42:35 pm by bnwitt |
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1 Replies
2231 Views |
September 30, 2017, 11:29:04 pm by tubeswell |
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Revibe has no reverb
Started by Apexelectric |
25 Replies
6288 Views |
September 30, 2017, 04:13:08 pm by PRR |
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5e3 eyelet board
Started by thor2015 |
9 Replies
4249 Views |
September 30, 2017, 02:05:50 pm by thor2015 |
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KT 120 in a Sunn / Fender 300T
Started by pbman1953 |
1 Replies
1940 Views |
September 30, 2017, 10:56:30 am by 92Volts |
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1 Replies
2003 Views |
September 29, 2017, 07:58:39 pm by sluckey |
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CJ 11 layout
Started by Auke Jolman |
15 Replies
7180 Views |
September 29, 2017, 09:04:23 am by Glenn |
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Bad tubes?
Started by uki |
2 Replies
2039 Views |
September 28, 2017, 05:58:54 pm by uki |
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Metal film (blue) vs. film (tan) resistors
Started by dude |
24 Replies
8928 Views |
September 28, 2017, 05:35:43 pm by HotBluePlates |
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6V6 Plexi build
Started by Tone Junkie |
22 Replies
5456 Views |
September 28, 2017, 11:34:05 am by dude |
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JVM410 - Voltage on nodes ?
Started by kagliostro |
2 Replies
2030 Views |
September 28, 2017, 07:28:23 am by kagliostro |
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Help identifying this flavour of hum
Started by TequilaKez |
9 Replies
3281 Views |
September 28, 2017, 03:55:00 am by Leevi |
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Rectifier safety diodes question
Started by mresistor |
5 Replies
3011 Views |
September 27, 2017, 06:01:23 pm by mresistor |
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