Welcome To the Hoffman Amplifiers Forum
December 09, 2025, 07:07:00 am
Welcome To the Hoffman Amplifiers ForumDecember 09, 2025, 07:07:00 am | ||
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5E7 low volume... numbers posted...
Started by Geezer |
0 Replies
4187 Views |
June 17, 2005, 09:36:20 pmby Geezer |
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0 Replies
3589 Views |
June 17, 2005, 09:35:51 pm by Geezer |
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8 pin tube socket adapter ?
Started by Geezer |
0 Replies
3783 Views |
June 17, 2005, 09:35:25 pm by Geezer |
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DC stand off heaters?
Started by Geezer |
0 Replies
3987 Views |
June 17, 2005, 09:34:55 pm by Geezer |
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Fender Deluxe P/T Wiring
Started by Geezer |
0 Replies
3642 Views |
June 17, 2005, 09:34:28 pm by Geezer |
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Add Effects loop to Doug's AB763 board
Started by Geezer |
0 Replies
4460 Views |
June 17, 2005, 09:34:04 pm by Geezer |
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What is the purpose of a cathode follower?
Started by Geezer |
0 Replies
4942 Views |
June 17, 2005, 09:33:38 pm by Geezer |
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Aluminum Chassis
Started by Geezer |
0 Replies
5478 Views |
June 17, 2005, 09:33:14 pm by Geezer |
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help please
Started by Geezer |
0 Replies
3852 Views |
June 17, 2005, 09:32:52 pm by Geezer |
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speaker magnet - power tube distance
Started by Geezer |
0 Replies
3687 Views |
June 17, 2005, 09:32:21 pm by Geezer |
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speaker impedances affecting tone?
Started by Geezer |
0 Replies
3821 Views |
June 17, 2005, 09:31:45 pm by Geezer |
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BF Showman 6v6's conversion?
Started by Geezer |
0 Replies
4529 Views |
June 17, 2005, 09:31:12 pm by Geezer |
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can't get the bias negative enough
Started by Geezer |
0 Replies
3960 Views |
June 17, 2005, 09:30:34 pm by Geezer |
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Ken: WHY must the heater be this way?
Started by Geezer |
0 Replies
3696 Views |
June 17, 2005, 09:30:09 pm by Geezer |
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Extension speaker jack wiring
Started by Geezer |
0 Replies
4439 Views |
June 17, 2005, 09:29:34 pm by Geezer |
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Microphonic output tubes?
Started by Geezer |
0 Replies
3817 Views |
June 17, 2005, 09:29:07 pm by Geezer |
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Blonde Bassman Power Sag.
Started by Geezer |
0 Replies
4404 Views |
June 17, 2005, 09:28:34 pm by Geezer |
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Power transformer interference
Started by Geezer |
0 Replies
4134 Views |
June 17, 2005, 09:28:07 pm by Geezer |
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PI questions.....
Started by Geezer |
0 Replies
3622 Views |
June 17, 2005, 09:27:43 pm by Geezer |
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0 Replies
3908 Views |
June 17, 2005, 09:27:15 pm by Geezer |
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Heater max voltage
Started by Geezer |
0 Replies
4061 Views |
June 17, 2005, 09:26:52 pm by Geezer |
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0 Replies
3982 Views |
June 17, 2005, 09:26:26 pm by Geezer |
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Groove Tube Substitube?
Started by Geezer |
0 Replies
4385 Views |
June 17, 2005, 09:26:00 pm by Geezer |
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About preamp gain
Started by Geezer |
0 Replies
4029 Views |
June 17, 2005, 09:25:33 pm by Geezer |
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hum resolved
Started by Geezer |
0 Replies
4647 Views |
June 17, 2005, 09:25:07 pm by Geezer |
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old orange drops
Started by Geezer |
0 Replies
4017 Views |
June 17, 2005, 09:24:38 pm by Geezer |
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Pin voltages for 100 watt Plexi &nbs
Started by Geezer |
0 Replies
5711 Views |
June 17, 2005, 09:24:13 pm by Geezer |
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OT that Doug used to sell
Started by Geezer |
0 Replies
4164 Views |
June 17, 2005, 09:23:44 pm by Geezer |
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Inconsistent/ up and down B+
Started by Geezer |
0 Replies
4449 Views |
June 17, 2005, 09:23:21 pm by Geezer |
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0 Replies
4494 Views |
June 17, 2005, 09:22:53 pm by Geezer |
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Master volume in a Princeton aa964
Started by Geezer |
0 Replies
5559 Views |
June 17, 2005, 09:22:27 pm by Geezer |
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oscillation/snubbers&PI
Started by Geezer |
0 Replies
4169 Views |
June 17, 2005, 09:21:50 pm by Geezer |
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Output Transformer 1750 ohms
Started by Geezer |
0 Replies
4033 Views |
June 17, 2005, 09:21:24 pm by Geezer |
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regulated DC heater circuit
Started by Geezer |
0 Replies
4610 Views |
June 17, 2005, 09:20:53 pm by Geezer |
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The need for Heat
Started by Geezer |
0 Replies
4086 Views |
June 17, 2005, 09:20:26 pm by Geezer |
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Preffered Bias Method
Started by Geezer |
0 Replies
4658 Views |
June 17, 2005, 09:20:02 pm by Geezer |
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Bassman 6L6 to EL34 conversion...
Started by Geezer |
0 Replies
7839 Views |
June 17, 2005, 09:19:36 pm by Geezer |
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5E3 Hum and transformer mounting
Started by Geezer |
0 Replies
5217 Views |
June 17, 2005, 09:18:56 pm by Geezer |
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0 Replies
5084 Views |
June 17, 2005, 09:18:21 pm by Geezer |
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Revibe Tank Impedance Tweak?
Started by Geezer |
0 Replies
4373 Views |
June 17, 2005, 09:17:55 pm by Geezer |
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Checking a cap can/anyone use the JJ?
Started by Geezer |
0 Replies
5226 Views |
June 17, 2005, 09:17:24 pm by Geezer |
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0 Replies
4507 Views |
June 17, 2005, 09:17:01 pm by Geezer |
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tube question
Started by Geezer |
0 Replies
4585 Views |
June 17, 2005, 09:16:34 pm by Geezer |
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Output transformer troubleshooting
Started by Geezer |
0 Replies
6612 Views |
June 17, 2005, 09:16:09 pm by Geezer |
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5E8A vs. 5F6A
Started by Geezer |
0 Replies
7134 Views |
June 17, 2005, 09:15:40 pm by Geezer |
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Home Brew Fender PS 400
Started by Geezer |
0 Replies
6110 Views |
June 17, 2005, 09:15:16 pm by Geezer |
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Fender Bassman 100 chassis layout
Started by Geezer |
0 Replies
6491 Views |
June 17, 2005, 09:14:47 pm by Geezer |
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0 Replies
4219 Views |
June 17, 2005, 09:14:18 pm by Geezer |
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What causes hum ?
Started by Geezer |
0 Replies
4544 Views |
June 17, 2005, 09:13:42 pm by Geezer |
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grid stoppers?
Started by Geezer |
0 Replies
4793 Views |
June 17, 2005, 09:13:10 pm by Geezer |
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