Welcome To the Hoffman Amplifiers Forum
March 11, 2026, 04:00:26 pm
Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 04:00:26 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| passaloutre, Glenn, dogburn and 103 Guests are viewing this board. | ||||
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Tighten up some flub on a half-power AC30?
Started by Cirrus |
2 Replies
2683 Views |
August 23, 2022, 10:15:48 amby Cirrus |
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DC heater supply
Started by joesatch |
4 Replies
3053 Views |
August 23, 2022, 02:12:47 am by kagliostro |
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4 Replies
2867 Views |
August 23, 2022, 12:59:36 am by acatlow@gmail.com |
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7 Replies
3703 Views |
August 22, 2022, 02:29:15 pm by PRR |
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Sunn Grid Noise
Started by plexi50 |
10 Replies
3849 Views |
August 22, 2022, 08:06:20 am by plexi50 |
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5881 vs 6L6GB
Started by imgumby001 |
7 Replies
3792 Views |
August 22, 2022, 05:46:56 am by HotBluePlates |
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Twin Reverb II Biasing Question
Started by dpm309 |
7 Replies
4052 Views |
August 21, 2022, 03:45:12 pm by dpm309 |
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4 Replies
2805 Views |
August 21, 2022, 12:15:31 pm by kagliostro |
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Help with ID of this resistor
Started by Apexelectric |
10 Replies
4141 Views |
August 20, 2022, 06:46:59 pm by Apexelectric |
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3 button footswitch with a TRS ?
Started by joesatch |
10 Replies
4235 Views |
August 20, 2022, 05:16:40 pm by Williamblake |
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Gibson GA50 question
Started by Leevi |
3 Replies
3074 Views |
August 20, 2022, 07:41:37 am by pdf64 |
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S#!t! - That's A Lot of Iron!
Started by DummyLoad |
3 Replies
2975 Views |
August 20, 2022, 04:34:56 am by zircontweezer |
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10 Replies
5245 Views |
August 19, 2022, 09:22:57 pm by DummyLoad |
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14 Replies
4468 Views |
August 19, 2022, 07:44:47 pm by Coldhand75 |
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6JB6A in a guitar amp
Started by Hojvaelde |
7 Replies
4206 Views |
August 19, 2022, 04:03:55 pm by PRR |
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Vibrochamp tremolo question
Started by Esquirefreak |
1 Replies
2386 Views |
August 18, 2022, 07:45:07 pm by tubeswell |
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RC4558 OP Amp Voltage Max
Started by plexi50 |
11 Replies
4616 Views |
August 17, 2022, 09:41:50 pm by DummyLoad |
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1974 Sunn Model A No Sound!
Started by plexi50 |
40 Replies
9489 Views |
August 17, 2022, 06:53:32 pm by PRR |
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3 Replies
2649 Views |
August 17, 2022, 06:29:20 pm by PRR |
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Sluckey's Trem-O-Nator in a Deluxe NR
Started by mk_716 |
1 Replies
2384 Views |
August 17, 2022, 02:00:57 pm by sluckey |
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4 Replies
3335 Views |
August 17, 2022, 10:57:01 am by dude |
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Preamp voltage and tone Question
Started by tubenit |
10 Replies
5195 Views |
August 16, 2022, 11:20:30 am by shooter |
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twisting B+ leads
Started by joesatch |
4 Replies
2802 Views |
August 16, 2022, 10:07:38 am by tubeswell |
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too much gain on Ef86 Vox Ac15
Started by rafaelctt |
22 Replies
8002 Views |
August 16, 2022, 01:39:53 am by rafaelctt |
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Q re: mixing circuit for Marshall’s
Started by RobBozic |
12 Replies
4169 Views |
August 15, 2022, 11:45:32 pm by Ed_Chambley |
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Reverb tank impedances
Started by isaac_teller |
3 Replies
2606 Views |
August 14, 2022, 12:05:01 am by isaac_teller |
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A jillion things to ground and to where?
Started by MrBreeze |
9 Replies
3723 Views |
August 13, 2022, 08:08:31 am by EL34 |
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Having Trouble With the Math!!
Started by imgumby001 |
8 Replies
3264 Views |
August 12, 2022, 06:13:30 pm by imgumby001 |
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Ampeg Gemini 1 Tremelo Problem (AGAIN)
Started by plexi50 |
19 Replies
6534 Views |
August 12, 2022, 03:26:58 pm by plexi50 |
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19 Replies
14960 Views |
August 12, 2022, 09:05:29 am by wsscott |
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3 Replies
2645 Views |
August 12, 2022, 01:30:37 am by Esquirefreak |
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Over Capacitance
Started by jaster55 |
9 Replies
3633 Views |
August 12, 2022, 01:25:04 am by jaster55 |
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New amp start up trouble
Started by Bieworm |
46 Replies
10901 Views |
August 12, 2022, 12:32:00 am by Bieworm |
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5F1M Champ Micro Build
Started by EricR |
4 Replies
3319 Views |
August 11, 2022, 09:04:12 pm by EricR |
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Dual PPIMV? Anyone?
Started by Ledvedder |
2 Replies
2433 Views |
August 11, 2022, 06:18:31 pm by acheld |
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Anyone Recognize These?
Started by imgumby001 |
3 Replies
2797 Views |
August 11, 2022, 09:53:50 am by imgumby001 |
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Blues junior build. No sound
Started by Brandonallen1212 |
13 Replies
3966 Views |
August 10, 2022, 06:31:23 pm by sluckey |
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Univox amp
Started by Mats |
19 Replies
9516 Views |
August 10, 2022, 04:01:08 pm by kagliostro |
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Hiwatt DR201 Choke?
Started by Balticnoiseforge |
18 Replies
7038 Views |
August 10, 2022, 09:42:54 am by JZRepair |
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1 channel Tremolux in PR Chassis questions
Started by owen |
35 Replies
9408 Views |
August 09, 2022, 10:53:20 pm by owen |
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Usage of 1760E or 1760H with EL84 pair
Started by Leevi |
12 Replies
3919 Views |
August 09, 2022, 10:25:05 am by dwinstonwood |
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New 18 Watt Build
Started by zendragon63 |
1 Replies
2366 Views |
August 09, 2022, 05:10:03 am by tubenit |
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135w UL Twin Reverb bias math
Started by winterturtle |
13 Replies
4952 Views |
August 08, 2022, 04:18:53 pm by shooter |
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Runnin LED off heaters.
Started by joesatch |
30 Replies
7732 Views |
August 08, 2022, 01:55:42 pm by shooter |
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5f6 layout help
Started by pizza |
9 Replies
3333 Views |
August 07, 2022, 12:03:45 pm by tubeswell |
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My BF PR can REALLY do metal
Started by Dyerseve726 |
2 Replies
2846 Views |
August 06, 2022, 07:36:07 pm by Dyerseve726 |
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63 Replies
21352 Views |
August 05, 2022, 11:53:32 pm by PRR |
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Help Choosing Power Supply Layout
Started by Thisismyname |
5 Replies
2870 Views |
August 05, 2022, 10:06:14 am by acheld |
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13 Replies
6065 Views |
August 05, 2022, 08:54:04 am by JZRepair |
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Preamp signal path switching
Started by dunner84 |
4 Replies
2978 Views |
August 04, 2022, 03:55:22 pm by CascoSieg |
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