Welcome To the Hoffman Amplifiers Forum
April 25, 2026, 09:28:24 pm
Welcome To the Hoffman Amplifiers ForumApril 25, 2026, 09:28:24 pm | ||
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Add Vu meter to pre-amp
Started by BrainDeadAmps |
0 Replies
2447 Views |
March 19, 2024, 01:15:41 amby BrainDeadAmps |
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29 Replies
12963 Views |
March 18, 2024, 07:06:29 pm by wsscott |
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MOVED: ADA MP1 schematic question
Started by sluckey |
0 Replies
2444 Views |
March 18, 2024, 03:22:34 pm by sluckey |
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Hoffman Princeton build in a PRRI Chassis
Started by Jrusto |
5 Replies
3382 Views |
March 18, 2024, 11:59:17 am by sluckey |
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5 Replies
3321 Views |
March 18, 2024, 11:58:10 am by Miyagi_83 |
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6 Replies
3637 Views |
March 17, 2024, 07:25:31 pm by HotBluePlates |
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26 Replies
9596 Views |
March 16, 2024, 11:22:29 pm by murrayatuptown |
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Another Mystery Transformer Query, sorry...
Started by tdvt |
6 Replies
3569 Views |
March 16, 2024, 09:03:48 pm by tdvt |
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Step down PT test
Started by AlNewman |
18 Replies
6698 Views |
March 16, 2024, 06:13:56 pm by AlNewman |
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5 Replies
4445 Views |
March 15, 2024, 12:11:34 am by passaloutre |
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6 Replies
3593 Views |
March 14, 2024, 07:29:24 pm by Lambertini |
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0 Replies
2953 Views |
March 14, 2024, 05:22:34 pm by spunko |
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7 Replies
4045 Views |
March 14, 2024, 09:44:52 am by daveneary |
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Ampro PA-3 head
Started by CrocMule |
16 Replies
6105 Views |
March 13, 2024, 10:08:08 pm by PRR |
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27 Replies
7288 Views |
March 13, 2024, 08:48:24 am by tdvt |
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31 Replies
9726 Views |
March 13, 2024, 12:28:55 am by tinkering |
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5 Replies
3323 Views |
March 12, 2024, 05:49:12 pm by PRR |
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0 Replies
2308 Views |
March 12, 2024, 05:04:28 pm by kagliostro |
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18 Replies
5109 Views |
March 12, 2024, 08:49:58 am by passaloutre |
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6 Replies
4074 Views |
March 12, 2024, 12:07:33 am by spunko |
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5 Replies
3600 Views |
March 11, 2024, 09:05:15 pm by AlNewman |
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6G15 + Tremodrive
Started by J3ona1 |
2 Replies
2544 Views |
March 11, 2024, 02:41:09 pm by J3ona1 |
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Trem-O-Nator Vactrol?
Started by tdvt |
3 Replies
2777 Views |
March 11, 2024, 12:56:02 pm by sluckey |
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Suitable Shoulder Washer & Flat Washer
Started by Pollys13a |
10 Replies
4828 Views |
March 11, 2024, 08:21:25 am by EL34 |
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New amp D-763
Started by tubenit |
9 Replies
4267 Views |
March 10, 2024, 04:10:06 pm by Platefire |
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16 Replies
5445 Views |
March 10, 2024, 01:32:02 pm by Pollys13a |
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Sluckey’s M-2 Magnatone
Started by Jhj |
13 Replies
5045 Views |
March 09, 2024, 10:03:04 pm by Jhj |
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Odd question about heater wires...
Started by AmberB |
3 Replies
2900 Views |
March 09, 2024, 09:05:39 pm by glass54 |
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18 Replies
6038 Views |
March 09, 2024, 09:57:32 am by acheld |
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10 Replies
5961 Views |
March 08, 2024, 03:50:43 pm by GuitarPilot65 |
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Issue on one channel, global effect?
Started by tdvt |
2 Replies
2663 Views |
March 08, 2024, 08:52:43 am by tdvt |
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8 Replies
4134 Views |
March 07, 2024, 10:15:44 pm by sluckey |
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I got the "bug" again.....
Started by Jonas |
8 Replies
4427 Views |
March 07, 2024, 05:20:53 pm by Jonas |
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What is preamp tube transconductance?
Started by Jonas |
6 Replies
4149 Views |
March 07, 2024, 05:01:52 pm by Jonas |
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5f10 shared plate resistors
Started by TurboGuitarMelton |
4 Replies
3201 Views |
March 07, 2024, 10:19:02 am by 66Strat |
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Voltage doubling rectifier
Started by dwinstonwood |
9 Replies
4795 Views |
March 07, 2024, 01:47:14 am by HotBluePlates |
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Blown tube?
Started by dbishopbliss |
4 Replies
3564 Views |
March 06, 2024, 01:17:52 pm by tubeswell |
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Hoffman Princeton build in a PRRI Chassis
Started by Jrusto |
14 Replies
6079 Views |
March 06, 2024, 10:14:11 am by sluckey |
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Princtone Reverb No Tremolo with EL84's
Started by Smradek |
3 Replies
3266 Views |
March 06, 2024, 09:48:49 am by tdvt |
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Vox AC4 switch question
Started by Kesi from Hungary |
6 Replies
3653 Views |
March 05, 2024, 11:18:08 pm by Kesi from Hungary |
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High pitched noise 15 watt tube amp Monoprice
Started by sausetron@yahoo.com |
2 Replies
3658 Views |
March 05, 2024, 08:52:57 pm by sausetron@yahoo.com |
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Fender accessory jack
Started by Diverted |
14 Replies
5911 Views |
March 05, 2024, 06:38:07 pm by sluckey |
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6 Replies
6003 Views |
March 05, 2024, 06:14:23 pm by tinkering |
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5 Replies
4469 Views |
March 05, 2024, 01:13:40 pm by PRR |
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6 Replies
3789 Views |
March 05, 2024, 01:08:32 pm by PRR |
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6DN3 vs 6CJ3 - interchangeable?
Started by kasperbergholt |
1 Replies
3302 Views |
March 05, 2024, 11:39:05 am by kasperbergholt |
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Mullard 3-3 is not amazing
Started by jewishjay |
6 Replies
4505 Views |
March 04, 2024, 08:05:31 pm by glass54 |
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100 Replies
20597 Views |
March 03, 2024, 06:43:25 pm by wsscott |
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8 Replies
4511 Views |
March 03, 2024, 05:48:10 pm by dude |
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record-O-Phone Reel to Reel. Any Ideas?
Started by silat |
10 Replies
4698 Views |
March 03, 2024, 11:14:29 am by silat |
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