Welcome To the Hoffman Amplifiers Forum
August 29, 2026, 08:09:10 am
Welcome To the Hoffman Amplifiers ForumAugust 29, 2026, 08:09:10 am | ||
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Power trans design and tube draw
Started by jojokeo |
14 Replies
10605 Views |
July 22, 2010, 04:06:17 pmby Merlin |
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12 Replies
8936 Views |
July 22, 2010, 11:06:24 am by Platefire |
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OT impedence question
Started by Alien |
7 Replies
7663 Views |
July 22, 2010, 05:26:29 am by Alien |
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8 Replies
6444 Views |
July 21, 2010, 10:29:25 pm by bluesbear |
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DRRI in for "Hand Wired" conversion
Started by bnwitt |
34 Replies
20065 Views |
July 21, 2010, 09:11:58 pm by bnwitt |
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Eclectic Reference
Started by Fresh_Start |
13 Replies
9491 Views |
July 21, 2010, 07:59:59 pm by HotBluePlates |
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pop in a D'lite build, who's in Jacksonville?
Started by dwp |
3 Replies
4917 Views |
July 21, 2010, 06:02:07 pm by dwp |
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World War II Champ Project
Started by eleventeen |
2 Replies
4632 Views |
July 21, 2010, 02:34:48 am by eleventeen |
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3 Replies
4626 Views |
July 21, 2010, 12:17:15 am by PRR |
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Original 5E3 Info Please!
Started by Platefire |
18 Replies
18317 Views |
July 20, 2010, 11:34:16 pm by Platefire |
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4 Replies
5921 Views |
July 20, 2010, 12:37:44 pm by harryk |
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2 Replies
4732 Views |
July 20, 2010, 12:32:04 pm by eleventeen |
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New Plexi 50 build
Started by bluestone |
10 Replies
7341 Views |
July 20, 2010, 10:02:53 am by simonallaway |
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2 Replies
4503 Views |
July 19, 2010, 09:29:00 pm by Fresh_Start |
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Replicate a vintage transformer
Started by atmars |
5 Replies
5680 Views |
July 18, 2010, 10:58:25 pm by DummyLoad |
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GA-40 RC network - what's the point??
Started by LooseChange |
9 Replies
6869 Views |
July 18, 2010, 10:09:18 pm by PRR |
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Reduce beating in bias vary tremolos
Started by bnwitt |
4 Replies
5523 Views |
July 18, 2010, 05:17:53 pm by bnwitt |
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11 Replies
13220 Views |
July 17, 2010, 10:13:32 pm by tubeswell |
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18 Replies
15791 Views |
July 17, 2010, 06:33:38 pm by jojokeo |
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NASTY PRINCETON
Started by TIMBO |
6 Replies
6158 Views |
July 17, 2010, 05:27:53 pm by TIMBO |
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1/50 NP capacitor question
Started by Bub |
3 Replies
7472 Views |
July 17, 2010, 02:10:00 pm by Tiny_Daddy |
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Oddball Marshall 2046 Specialist
Started by Rev D |
0 Replies
5753 Views |
July 16, 2010, 03:43:12 pm by Rev D |
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Hi - Low Vol switch ?
Started by tubenit |
20 Replies
10742 Views |
July 16, 2010, 10:28:23 am by jjasilli |
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4 Replies
6134 Views |
July 15, 2010, 09:14:03 pm by tubesornothing |
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21 Replies
15687 Views |
July 15, 2010, 08:36:57 pm by LooseChange |
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move relay ft. switch jack
Started by tubenit |
6 Replies
6094 Views |
July 15, 2010, 03:53:13 pm by DummyLoad |
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3 Replies
5386 Views |
July 15, 2010, 07:56:31 am by sluckey |
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Marshall Major phase inverter
Started by navdave |
4 Replies
6283 Views |
July 15, 2010, 04:22:29 am by Ritchie200 |
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6 Replies
6720 Views |
July 15, 2010, 02:20:00 am by Rev D |
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Dual pentode/triode tubes in preamp?
Started by Fresh_Start |
7 Replies
8944 Views |
July 15, 2010, 12:57:24 am by bigdaddy |
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Tremolo troubles ab763 new build
Started by Tone Junkie |
9 Replies
6859 Views |
July 15, 2010, 12:03:56 am by Tone Junkie |
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Killer ant mod
Started by bigdaddy |
3 Replies
8191 Views |
July 14, 2010, 11:13:24 pm by bigdaddy |
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Help with negative bias voltage
Started by J Rindt |
5 Replies
8079 Views |
July 14, 2010, 05:10:50 pm by sluckey |
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What's this filter??
Started by Geezer |
7 Replies
5948 Views |
July 14, 2010, 04:48:16 pm by FYL |
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3 Replies
4647 Views |
July 14, 2010, 07:22:36 am by nateflanigan |
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Replacing PT in Princeton (AA1164)
Started by dude |
3 Replies
4844 Views |
July 13, 2010, 03:48:39 pm by Fresh_Start |
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reverb issues ab763 circuit new build
Started by Tone Junkie |
3 Replies
4659 Views |
July 13, 2010, 02:52:52 pm by sluckey |
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changing PI bias
Started by phsyconoodler |
6 Replies
6879 Views |
July 13, 2010, 12:36:07 pm by phsyconoodler |
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12V heater to raise B+?
Started by birt |
10 Replies
7577 Views |
July 13, 2010, 12:34:54 pm by gar13 |
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JCM800 clone 6550R high freq. squeal
Started by mamps |
4 Replies
5161 Views |
July 13, 2010, 10:33:40 am by mamps |
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12 Replies
9573 Views |
July 13, 2010, 12:10:14 am by Tone Junkie |
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AB763 Deluxe Reverb with 6v6
Started by moonbird |
9 Replies
8248 Views |
July 12, 2010, 07:47:02 pm by sluckey |
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Single channel AB763 design question?
Started by markmalin |
11 Replies
9481 Views |
July 12, 2010, 07:21:11 pm by markmalin |
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Smokin' PT
Started by bluestone |
22 Replies
10053 Views |
July 11, 2010, 07:23:31 pm by bluestone |
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Fixing Noise
Started by rafe |
2 Replies
4368 Views |
July 11, 2010, 01:30:44 am by rafe |
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5 Replies
5822 Views |
July 10, 2010, 07:14:28 pm by kagliostro |
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12 Replies
8417 Views |
July 10, 2010, 11:52:19 am by toomanyslurpees |
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Bogen CHB-35A PA amp
Started by punkykatt |
8 Replies
8084 Views |
July 09, 2010, 06:40:26 pm by dwp |
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2 Replies
7114 Views |
July 09, 2010, 08:46:58 am by kagliostro |
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Need help tracking down a "buzz"
Started by markmalin |
22 Replies
13212 Views |
July 09, 2010, 08:14:25 am by markmalin |
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Hot Topic (More than 25 replies)
Very Hot Topic (More than 50 replies)
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