Welcome To the Hoffman Amplifiers Forum
December 08, 2025, 10:00:31 am
Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 10:00:31 am | ||
| Subject / Started by | Replies / Views | Last post  |
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Issue on AB763 Twin clone (tube current)
Started by 72Blazer |
7 Replies
2642 Views |
June 21, 2024, 08:26:20 amby 72Blazer |
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UX-1501 Output Transformer Impedance
Started by astronomicum |
7 Replies
2942 Views |
June 20, 2024, 10:46:04 pm by astronomicum |
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14 Replies
4049 Views |
June 20, 2024, 09:39:30 am by Platefire |
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2-channel SE amp...
Started by mrjomo |
7 Replies
2949 Views |
June 19, 2024, 10:59:09 am by mrjomo |
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5A3 heater balance
Started by Leevi |
19 Replies
5369 Views |
June 19, 2024, 10:38:45 am by Leevi |
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4 Replies
2733 Views |
June 19, 2024, 03:33:28 am by Latole |
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Dagnall PT datasheet
Started by TonyM |
2 Replies
2197 Views |
June 18, 2024, 08:10:06 pm by sluckey |
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Resistor worries.
Started by joesatch |
12 Replies
3962 Views |
June 17, 2024, 01:15:26 pm by Willabe |
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Fender Vibro-Champ AA764 Distortion
Started by fenderguy81 |
16 Replies
4916 Views |
June 16, 2024, 09:50:10 am by HotBluePlates |
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coax crisis
Started by joesatch |
6 Replies
2832 Views |
June 16, 2024, 09:41:55 am by sluckey |
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Panasonic ECQ vs Orange Drops
Started by joesatch |
2 Replies
2509 Views |
June 14, 2024, 10:51:26 am by shooter |
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Mid-30s amp, interesting power supply
Started by Diverted |
12 Replies
3342 Views |
June 14, 2024, 09:20:41 am by Diverted |
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LDR testing Mesa Boogie
Started by joesatch |
2 Replies
2279 Views |
June 12, 2024, 02:27:17 pm by sluckey |
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9 Replies
3480 Views |
June 12, 2024, 07:17:00 am by K Teacher |
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10 Replies
3875 Views |
June 12, 2024, 05:54:51 am by balmoral |
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Any speaker cab impedance measurements?
Started by Merlin |
6 Replies
2701 Views |
June 11, 2024, 08:22:33 pm by tubeswell |
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6 Replies
2807 Views |
June 11, 2024, 03:00:14 pm by tdvt |
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5 Replies
3022 Views |
June 11, 2024, 02:03:39 pm by idontknowyou |
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Polarity of caps
Started by dude |
20 Replies
5149 Views |
June 11, 2024, 07:51:04 am by kagliostro |
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6 Replies
2798 Views |
June 10, 2024, 10:43:06 pm by jaster55 |
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66 Replies
16944 Views |
June 10, 2024, 04:35:18 pm by tdvt |
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5F1 Pre-build Questions
Started by HBCYG5260 |
7 Replies
3158 Views |
June 10, 2024, 01:16:34 pm by johnnyreece |
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Push/pull reverb driver
Started by Esquirefreak |
11 Replies
3998 Views |
June 10, 2024, 11:28:13 am by Esquirefreak |
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Cathode Follower Switching
Started by Zenabi |
10 Replies
4479 Views |
June 10, 2024, 08:34:31 am by Zenabi |
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11 Replies
3982 Views |
June 09, 2024, 10:09:02 pm by tubeswell |
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5F6A power section mods
Started by electrical |
12 Replies
4326 Views |
June 08, 2024, 08:49:59 am by jjasilli |
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Resistor concerns
Started by joesatch |
12 Replies
3861 Views |
June 07, 2024, 01:19:58 am by glass54 |
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Vox ac4 build question
Started by green drake |
26 Replies
8012 Views |
June 06, 2024, 11:39:02 pm by green drake |
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17 Replies
5407 Views |
June 06, 2024, 06:45:37 pm by sluckey |
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2 Replies
2434 Views |
June 05, 2024, 08:31:55 pm by Thisismyname |
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7 Replies
3573 Views |
June 05, 2024, 05:27:49 pm by Beezerboy |
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Protecting G2 from overvoltage - How ?
Started by kagliostro |
10 Replies
3964 Views |
June 05, 2024, 05:15:50 pm by kagliostro |
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29 Replies
7923 Views |
June 05, 2024, 05:11:58 pm by moosetone |
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8 Replies
3139 Views |
June 05, 2024, 11:56:45 am by 72Blazer |
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14 Replies
4900 Views |
June 04, 2024, 06:08:47 pm by sluckey |
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Bias pot valve in Plexi 6V6
Started by dude |
13 Replies
4310 Views |
June 04, 2024, 11:48:44 am by sluckey |
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Fuses: fast or slow? How to determine it?
Started by Latole |
4 Replies
2547 Views |
June 04, 2024, 08:03:15 am by Latole |
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Acoustic guitar amplifiers
Started by G._Hoffman |
23 Replies
6232 Views |
June 03, 2024, 01:55:05 pm by jjasilli |
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0 Replies
2053 Views |
June 03, 2024, 11:56:34 am by Duncan |
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Modern Princeton reverb
Started by nandrewjackson |
19 Replies
5150 Views |
June 03, 2024, 11:28:57 am by sluckey |
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24 Replies
8221 Views |
June 03, 2024, 10:16:07 am by tdvt |
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2 Replies
2364 Views |
June 02, 2024, 10:25:31 am by JustMike |
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Cathode bypass caps as noise control
Started by stratomaster |
41 Replies
11595 Views |
June 02, 2024, 12:51:43 am by stratomaster |
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Marshall 2144 Combo
Started by TIMBO |
15 Replies
7761 Views |
June 01, 2024, 06:37:04 pm by TIMBO |
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6BM8 tube retainers
Started by tubenit |
2 Replies
2250 Views |
June 01, 2024, 05:55:34 pm by uki |
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36 Replies
8413 Views |
May 31, 2024, 01:13:03 pm by Yeatzee |
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Help with mu-follower repair
Started by MPRCTCL |
8 Replies
3496 Views |
May 31, 2024, 12:38:02 pm by MPRCTCL |
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Noise in Silver Face MV Twin Reverb amp.
Started by Mark |
2 Replies
2242 Views |
May 31, 2024, 10:47:45 am by Mark |
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Chassis fab
Started by fossilshark |
2 Replies
2487 Views |
May 30, 2024, 09:53:04 am by acheld |
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How to protect OT in an SE amp ?
Started by kagliostro |
4 Replies
2706 Views |
May 30, 2024, 07:56:24 am by kagliostro |
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