Welcome To the Hoffman Amplifiers Forum
December 09, 2025, 09:55:36 am
Welcome To the Hoffman Amplifiers ForumDecember 09, 2025, 09:55:36 am | ||
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my se el84 running at 370 vdc ?
Started by john_t |
23 Replies
9139 Views |
September 29, 2010, 07:58:08 pmby john_t |
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MOVED: Schematics for "Suhr" sound amps
Started by EL34 |
0 Replies
6856 Views |
September 29, 2010, 07:53:56 pm by EL34 |
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44 Replies
13697 Views |
September 29, 2010, 03:46:10 pm by Andre Oliveros |
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3 Replies
3020 Views |
September 29, 2010, 03:44:02 pm by FYL |
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0 Replies
3213 Views |
September 28, 2010, 09:12:12 am by EL34 |
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Harmon Kardon / Mono Block
Started by plexi50 |
16 Replies
7669 Views |
September 28, 2010, 08:37:35 am by plexi50 |
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Negative feedback resistor value
Started by jeff |
4 Replies
14687 Views |
September 28, 2010, 04:34:54 am by tubeswell |
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Dual Showman Reverb Question
Started by blueznet |
5 Replies
5565 Views |
September 27, 2010, 10:52:58 pm by blueznet |
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reverb output tranny question
Started by 67polara |
10 Replies
5117 Views |
September 27, 2010, 07:10:35 pm by EL34 |
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3 Replies
4083 Views |
September 27, 2010, 07:01:37 pm by LooseChange |
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fender choke in marshall?
Started by rdrgtr |
6 Replies
4827 Views |
September 27, 2010, 06:17:56 pm by tubeswell |
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4 tube power amp
Started by jeff |
5 Replies
4163 Views |
September 27, 2010, 05:34:39 pm by eleventeen |
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spacing tubes for layout
Started by zfiles1701 |
5 Replies
4308 Views |
September 27, 2010, 01:36:47 pm by kagliostro |
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Shielded EQ
Started by plexi50 |
6 Replies
4418 Views |
September 26, 2010, 08:12:29 pm by plexi50 |
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Revisiting Bass Amps, Final Critique
Started by bluesbear |
20 Replies
8256 Views |
September 26, 2010, 07:11:16 pm by Tone Junkie |
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5 Replies
3965 Views |
September 26, 2010, 04:51:20 pm by scarlett amps |
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MOVED: a pair of 9vs to a wall wart....
Started by tubenit |
0 Replies
3047 Views |
September 26, 2010, 03:41:52 pm by tubenit |
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plate to cathode cap
Started by rdrgtr |
7 Replies
6526 Views |
September 26, 2010, 10:09:27 am by Tiny_Daddy |
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9 Replies
4863 Views |
September 25, 2010, 08:17:31 pm by tubenit |
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1 tube reverb and a foot switch?
Started by 67polara |
2 Replies
3048 Views |
September 24, 2010, 11:31:01 pm by 67polara |
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I finally sold one of my amps
Started by bigdaddy |
7 Replies
4242 Views |
September 24, 2010, 06:52:27 pm by Madison |
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5879 RCA or Silvania?
Started by 67polara |
7 Replies
4708 Views |
September 24, 2010, 06:31:13 pm by jojokeo |
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Measuring NFB resistor in circuit?
Started by Fresh_Start |
5 Replies
4903 Views |
September 23, 2010, 08:11:20 pm by tubeswell |
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tube markings
Started by ampcabinets |
3 Replies
3336 Views |
September 23, 2010, 11:37:53 am by PRR |
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6 Replies
4689 Views |
September 23, 2010, 11:17:38 am by DummyLoad |
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Desktop Series Overdrive done - again
Started by LooseChange |
20 Replies
9957 Views |
September 23, 2010, 10:00:05 am by tubenit |
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Blues Jr crackling
Started by Cups |
13 Replies
14455 Views |
September 22, 2010, 07:06:32 pm by Fresh_Start |
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3 Replies
3668 Views |
September 22, 2010, 05:43:14 pm by chip |
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11 Replies
5671 Views |
September 22, 2010, 09:29:30 am by RicharD |
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Magnatone M10A OT
Started by plexi50 |
13 Replies
6236 Views |
September 22, 2010, 07:47:39 am by plexi50 |
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16 Replies
7135 Views |
September 22, 2010, 01:47:47 am by jojokeo |
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7 Replies
4276 Views |
September 21, 2010, 06:33:26 pm by archaos |
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PEAVEY WINDSOR O.T.B.
Started by rzenc |
2 Replies
3104 Views |
September 21, 2010, 12:29:34 pm by rzenc |
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Variable NFB pot
Started by madditch |
5 Replies
6200 Views |
September 21, 2010, 12:25:43 pm by Platefire |
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6SN7 or 6SL7?
Started by Madison |
15 Replies
16725 Views |
September 21, 2010, 11:41:03 am by panhead |
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1-Tube Reverb sounds
Started by topbrent |
0 Replies
3514 Views |
September 21, 2010, 05:18:09 am by topbrent |
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Tex Caps
Started by ampcabinets |
6 Replies
4702 Views |
September 21, 2010, 01:39:42 am by stingray_65 |
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17 Replies
8277 Views |
September 20, 2010, 10:02:25 pm by Fresh_Start |
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Clipping Diodes In Marshall 2203
Started by plexi50 |
6 Replies
7501 Views |
September 20, 2010, 08:25:36 pm by plexi50 |
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MOVED: Insane POLL!
Started by sluckey |
0 Replies
3397 Views |
September 20, 2010, 03:50:20 pm by sluckey |
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5 volt PT tap tied to 6.3 volt tap??
Started by bnwitt |
3 Replies
3901 Views |
September 20, 2010, 11:24:28 am by Merlin |
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Blackface Princeton Reverb on bench
Started by Fresh_Start |
5 Replies
4839 Views |
September 20, 2010, 10:54:40 am by Fresh_Start |
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Champ 420V B+; Misload Transformer?
Started by jeff |
20 Replies
10924 Views |
September 20, 2010, 10:19:15 am by bigdaddy |
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here is that Vibrolux rebuild of a Univox 1226
Started by ampcabinets |
6 Replies
5048 Views |
September 20, 2010, 12:00:30 am by Shrapnel |
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Choke, need info???
Started by sawdust |
8 Replies
4491 Views |
September 19, 2010, 09:38:14 pm by PRR |
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I've done it again (Vibrochamp woes)
Started by rafe |
25 Replies
9176 Views |
September 19, 2010, 07:50:25 pm by rafe |
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Class A operation (push-pull output)
Started by bruno |
15 Replies
10713 Views |
September 19, 2010, 04:32:06 pm by Merlin |
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3 Replies
4854 Views |
September 19, 2010, 03:20:35 pm by Geezer |
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Trying to ID a 822348 Tube
Started by zendragon63 |
9 Replies
5747 Views |
September 19, 2010, 02:07:09 pm by zendragon63 |
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3 Replies
4168 Views |
September 19, 2010, 01:11:28 am by stantheman |
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