Welcome To the Hoffman Amplifiers Forum
January 23, 2026, 09:55:35 pm
Welcome To the Hoffman Amplifiers ForumJanuary 23, 2026, 09:55:35 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 53 Guests are viewing this board. | ||||
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Preamp voltage and tone Question
Started by tubenit |
10 Replies
4838 Views |
August 16, 2022, 11:20:30 amby shooter |
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twisting B+ leads
Started by joesatch |
4 Replies
2650 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
7401 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
3965 Views |
August 15, 2022, 11:45:32 pm by Ed_Chambley |
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Reverb tank impedances
Started by isaac_teller |
3 Replies
2434 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
3486 Views |
August 13, 2022, 08:08:31 am by EL34 |
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Having Trouble With the Math!!
Started by imgumby001 |
8 Replies
3050 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
6022 Views |
August 12, 2022, 03:26:58 pm by plexi50 |
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19 Replies
14634 Views |
August 12, 2022, 09:05:29 am by wsscott |
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3 Replies
2466 Views |
August 12, 2022, 01:30:37 am by Esquirefreak |
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Over Capacitance
Started by jaster55 |
9 Replies
3387 Views |
August 12, 2022, 01:25:04 am by jaster55 |
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New amp start up trouble
Started by Bieworm |
46 Replies
10082 Views |
August 12, 2022, 12:32:00 am by Bieworm |
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5F1M Champ Micro Build
Started by EricR |
4 Replies
3040 Views |
August 11, 2022, 09:04:12 pm by EricR |
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Dual PPIMV? Anyone?
Started by Ledvedder |
2 Replies
2277 Views |
August 11, 2022, 06:18:31 pm by acheld |
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Anyone Recognize These?
Started by imgumby001 |
3 Replies
2602 Views |
August 11, 2022, 09:53:50 am by imgumby001 |
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Blues junior build. No sound
Started by Brandonallen1212 |
13 Replies
3708 Views |
August 10, 2022, 06:31:23 pm by sluckey |
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Univox amp
Started by Mats |
19 Replies
9062 Views |
August 10, 2022, 04:01:08 pm by kagliostro |
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Hiwatt DR201 Choke?
Started by Balticnoiseforge |
18 Replies
6645 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
8828 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
3765 Views |
August 09, 2022, 10:25:05 am by dwinstonwood |
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New 18 Watt Build
Started by zendragon63 |
1 Replies
2216 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
4640 Views |
August 08, 2022, 04:18:53 pm by shooter |
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Runnin LED off heaters.
Started by joesatch |
30 Replies
7087 Views |
August 08, 2022, 01:55:42 pm by shooter |
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5f6 layout help
Started by pizza |
9 Replies
3117 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
2595 Views |
August 06, 2022, 07:36:07 pm by Dyerseve726 |
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63 Replies
20394 Views |
August 05, 2022, 11:53:32 pm by PRR |
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Help Choosing Power Supply Layout
Started by Thisismyname |
5 Replies
2663 Views |
August 05, 2022, 10:06:14 am by acheld |
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13 Replies
5685 Views |
August 05, 2022, 08:54:04 am by JZRepair |
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Preamp signal path switching
Started by dunner84 |
4 Replies
2753 Views |
August 04, 2022, 03:55:22 pm by CascoSieg |
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29 Replies
6884 Views |
August 04, 2022, 03:30:13 pm by shaun |
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5E3 PTs and OTs?
Started by Voxbox |
11 Replies
3928 Views |
August 04, 2022, 03:29:04 pm by Voxbox |
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2 Replies
2282 Views |
August 04, 2022, 05:48:44 am by Bieworm |
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1974 Model A Sunn Speaker Choices?
Started by plexi50 |
11 Replies
4827 Views |
August 03, 2022, 07:31:27 am by plexi50 |
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Tweed deluxe build
Started by Arry |
6 Replies
4693 Views |
August 02, 2022, 04:12:54 pm by bnwitt |
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Switched Input with relay.
Started by joesatch |
11 Replies
3595 Views |
August 02, 2022, 04:00:35 pm by Williamblake |
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Electrolytic bypass caps
Started by valvetones |
5 Replies
3447 Views |
August 02, 2022, 01:28:10 pm by shooter |
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23 Replies
6631 Views |
August 01, 2022, 07:17:09 pm by winterturtle |
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F&T variants
Started by joesatch |
14 Replies
4323 Views |
August 01, 2022, 04:32:38 pm by uki |
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Harmony H303 Hum and Static
Started by scstill |
18 Replies
5299 Views |
July 31, 2022, 10:43:30 pm by PRR |
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5Y3GT Filter capacitor
Started by dude |
13 Replies
5990 Views |
July 31, 2022, 09:03:35 pm by MrBreeze |
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Univox U1000 repair/modification help
Started by Lucaswaggle |
19 Replies
6776 Views |
July 31, 2022, 02:38:26 pm by PRR |
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Output transformer & choke location
Started by MrBreeze |
4 Replies
3092 Views |
July 31, 2022, 12:07:26 pm by dude |
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EH-150/185 build complete
Started by Jerry garrcia |
1 Replies
2439 Views |
July 29, 2022, 07:36:24 pm by bmccowan |
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37 Replies
8007 Views |
July 29, 2022, 10:18:58 am by Williamblake |
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x
Started by fenderguy81 |
10 Replies
3282 Views |
July 27, 2022, 07:07:29 am by Latole |
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Help with Supro 1960T
Started by Travis8 |
9 Replies
3434 Views |
July 27, 2022, 06:50:37 am by sluckey |
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29 Replies
7253 Views |
July 26, 2022, 08:25:31 pm by Apexelectric |
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6 Replies
3521 Views |
July 25, 2022, 10:44:21 pm by tubeswell |
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7 Replies
3557 Views |
July 25, 2022, 12:48:23 pm by pdf64 |
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Need reverb jack advice
Started by Lectroid |
11 Replies
4360 Views |
July 25, 2022, 11:19:32 am by Lectroid |
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