Welcome To the Hoffman Amplifiers Forum
March 11, 2026, 04:00:42 pm
Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 04:00:42 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| dogburn, passaloutre, Glenn and 92 Guests are viewing this board. | ||||
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Hammond 290GX Transformer laying down?
Started by timbraun |
8 Replies
6315 Views |
October 04, 2017, 05:54:05 pmby timbraun |
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10 Replies
5627 Views |
October 04, 2017, 05:27:35 pm by ClippIn4tae |
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Kay 803 Grounding
Started by dpm309 |
7 Replies
4876 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
5800 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
6418 Views |
October 04, 2017, 02:43:05 am by purpletele |
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Blues Junior output transformer specs
Started by sarkipinty |
12 Replies
9681 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
3333 Views |
October 03, 2017, 04:26:55 pm by sluckey |
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TOS next build?
Started by dennyg |
9 Replies
4131 Views |
October 03, 2017, 04:22:36 pm by sluckey |
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12 Replies
5413 Views |
October 03, 2017, 07:34:45 am by bnwitt |
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Supro 1624T - fixed bias?
Started by adamG |
23 Replies
12592 Views |
October 03, 2017, 03:41:56 am by adamG |
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Shuguang 274B rectifier anyone?
Started by mresistor |
3 Replies
3701 Views |
October 03, 2017, 12:30:18 am by tubeswell |
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Presence and Resonance Controls
Started by JKRamsey1991 |
6 Replies
6156 Views |
October 02, 2017, 09:17:15 pm by mresistor |
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14 Replies
10128 Views |
October 02, 2017, 04:22:27 pm by Ed_Chambley |
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149 Replies
39528 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
2704 Views |
October 01, 2017, 06:42:35 pm by bnwitt |
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1 Replies
3193 Views |
September 30, 2017, 11:29:04 pm by tubeswell |
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Revibe has no reverb
Started by Apexelectric |
25 Replies
8582 Views |
September 30, 2017, 04:13:08 pm by PRR |
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5e3 eyelet board
Started by thor2015 |
9 Replies
5236 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
2700 Views |
September 30, 2017, 10:56:30 am by 92Volts |
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1 Replies
3001 Views |
September 29, 2017, 07:58:39 pm by sluckey |
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CJ 11 layout
Started by Auke Jolman |
15 Replies
8473 Views |
September 29, 2017, 09:04:23 am by Glenn |
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Bad tubes?
Started by uki |
2 Replies
2760 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
11021 Views |
September 28, 2017, 05:35:43 pm by HotBluePlates |
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6V6 Plexi build
Started by Tone Junkie |
22 Replies
7057 Views |
September 28, 2017, 11:34:05 am by dude |
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JVM410 - Voltage on nodes ?
Started by kagliostro |
2 Replies
3093 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
4556 Views |
September 28, 2017, 03:55:00 am by Leevi |
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Rectifier safety diodes question
Started by mresistor |
5 Replies
4181 Views |
September 27, 2017, 06:01:23 pm by mresistor |
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29 Replies
9700 Views |
September 27, 2017, 04:17:41 pm by sluckey |
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bogen cha-20 hack
Started by DummyLoad |
29 Replies
10652 Views |
September 27, 2017, 03:03:48 pm by gjesse |
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Second channel of AB763 behaving oddly
Started by evancorylevine « 1 2 » |
78 Replies
19878 Views |
September 27, 2017, 07:12:17 am by evancorylevine |
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How to use a current limiter
Started by bnwitt |
3 Replies
6760 Views |
September 26, 2017, 02:16:56 pm by SoundmasterG |
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7 Replies
3802 Views |
September 26, 2017, 01:03:27 pm by shooter |
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Low power of 5D3
Started by Leevi |
20 Replies
8546 Views |
September 26, 2017, 05:54:10 am by Leevi |
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1 Replies
3229 Views |
September 25, 2017, 06:32:00 pm by shooter |
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power tube orientation
Started by dennyg |
2 Replies
3175 Views |
September 25, 2017, 02:55:47 pm by dennyg |
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Princeton Chorus DSL Conversion
Started by 2deaf |
8 Replies
5276 Views |
September 25, 2017, 02:38:17 pm by SILVERGUN |
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5 Replies
8885 Views |
September 25, 2017, 02:42:08 am by burger |
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67 Replies
25096 Views |
September 24, 2017, 07:50:52 pm by pompeiisneaks |
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schematic translation/interpretation
Started by davidwpack |
2 Replies
3030 Views |
September 24, 2017, 04:11:33 pm by davidwpack |
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SE Power & OT Z calcs
Started by dennyg |
11 Replies
4870 Views |
September 24, 2017, 02:56:33 pm by tubeswell |
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5E3 grounding
Started by JB |
6 Replies
4614 Views |
September 24, 2017, 02:44:26 pm by bnwitt |
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Current limiter
Started by NotSure |
9 Replies
3926 Views |
September 24, 2017, 02:01:00 pm by NotSure |
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Blues Jr. Reverb Problem
Started by dpm309 |
5 Replies
3747 Views |
September 24, 2017, 01:31:00 pm by dpm309 |
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29 Replies
8740 Views |
September 24, 2017, 12:56:32 pm by tedsorvino1 |
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5 Replies
4206 Views |
September 24, 2017, 12:46:17 pm by 2deaf |
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2 Replies
2912 Views |
September 24, 2017, 06:41:12 am by tubenit |
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screen grid resistor choice for KT88's
Started by Curranm |
6 Replies
8662 Views |
September 21, 2017, 10:15:21 pm by tubeswell |
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New Build With a Problem
Started by JKRamsey1991 |
13 Replies
5547 Views |
September 21, 2017, 07:34:04 pm by JKRamsey1991 |
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3 Replies
3638 Views |
September 21, 2017, 01:29:55 pm by sluckey |
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53 Replies
24110 Views |
September 21, 2017, 11:52:51 am by PRR |
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