Welcome To the Hoffman Amplifiers Forum
January 24, 2026, 08:54:21 pm
Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 08:54:21 pm | ||
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| rafe and 43 Guests are viewing this board. | ||||
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telephone troubleshooting a 5E3 Mission Kit
Started by dwp |
5 Replies
5168 Views |
October 06, 2010, 10:17:20 amby phsyconoodler |
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old made in USA 12AU7's
Started by oldhippy |
17 Replies
10949 Views |
October 05, 2010, 11:08:31 pm by bigsbybender |
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OT wiring Question
Started by Platefire |
7 Replies
4779 Views |
October 05, 2010, 10:03:26 am by Platefire |
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Power transformers test method ?
Started by kagliostro |
7 Replies
8034 Views |
October 05, 2010, 02:20:28 am by kagliostro |
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Help Identifying Transformers
Started by knotscott |
18 Replies
8833 Views |
October 05, 2010, 12:43:06 am by PRR |
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Tos build done
Started by Tone Junkie |
10 Replies
5446 Views |
October 04, 2010, 06:04:36 pm by Tone Junkie |
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10 Replies
6036 Views |
October 04, 2010, 04:52:16 pm by Shrapnel |
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More loose power amp ?
Started by mat |
3 Replies
3574 Views |
October 04, 2010, 04:07:38 pm by phsyconoodler |
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11 Replies
6898 Views |
October 04, 2010, 09:58:28 am by Boots Deville |
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MOVED: Anyone want a cat?
Started by tubenit |
0 Replies
3710 Views |
October 04, 2010, 05:55:30 am by tubenit |
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TOS (TIMBO'S OUTSTANDING SUCCESS)!!!!
Started by TIMBO |
14 Replies
9270 Views |
October 04, 2010, 03:08:33 am by TIMBO |
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12au7 tube help and directions
Started by Tone Junkie |
8 Replies
7481 Views |
October 03, 2010, 03:18:32 pm by Tone Junkie |
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Compactrons
Started by stingray_65 |
3 Replies
4361 Views |
October 03, 2010, 09:57:47 am by stingray_65 |
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LED instead of traditional Fender Lamp
Started by samato |
34 Replies
22989 Views |
October 02, 2010, 08:42:54 pm by PRR |
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jcm 900 model 4100 output transformer
Started by six el six |
7 Replies
8299 Views |
October 02, 2010, 08:17:05 pm by FYL |
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390-0-390 for 50w marshall?
Started by rdrgtr |
26 Replies
13240 Views |
October 02, 2010, 05:15:00 pm by imaradiostar |
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TOS schematic values and BOM??
Started by 67polara |
12 Replies
6730 Views |
October 02, 2010, 11:25:44 am by PRR |
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MOVED: Very interesting quote
Started by tubenit |
0 Replies
3381 Views |
October 01, 2010, 06:19:39 pm by tubenit |
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D_mble build into TOS
Started by mat |
19 Replies
9003 Views |
October 01, 2010, 11:44:32 am by mat |
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1 Replies
3203 Views |
October 01, 2010, 11:06:24 am by Geezer |
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28 Replies
15335 Views |
September 30, 2010, 02:09:34 pm by FranciscoPerez |
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An amp with 2 separate PI's
Started by macula56 |
6 Replies
4562 Views |
September 30, 2010, 11:53:02 am by macula56 |
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Soldering question regarding turrets
Started by Platefire |
12 Replies
6939 Views |
September 30, 2010, 11:37:18 am by EL34 |
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18 watt volume/tone with 1M pots ?
Started by Madison |
9 Replies
6789 Views |
September 30, 2010, 08:37:48 am by Madison |
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20 Replies
10316 Views |
September 30, 2010, 01:14:50 am by Platefire |
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2 Replies
6813 Views |
September 29, 2010, 08:26:14 pm by PRR |
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my se el84 running at 370 vdc ?
Started by john_t |
23 Replies
9818 Views |
September 29, 2010, 07:58:08 pm by john_t |
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MOVED: Schematics for "Suhr" sound amps
Started by EL34 |
0 Replies
7229 Views |
September 29, 2010, 07:53:56 pm by EL34 |
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44 Replies
14753 Views |
September 29, 2010, 03:46:10 pm by Andre Oliveros |
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3 Replies
3386 Views |
September 29, 2010, 03:44:02 pm by FYL |
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0 Replies
3558 Views |
September 28, 2010, 09:12:12 am by EL34 |
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Harmon Kardon / Mono Block
Started by plexi50 |
16 Replies
8328 Views |
September 28, 2010, 08:37:35 am by plexi50 |
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Negative feedback resistor value
Started by jeff |
4 Replies
15268 Views |
September 28, 2010, 04:34:54 am by tubeswell |
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Dual Showman Reverb Question
Started by blueznet |
5 Replies
6041 Views |
September 27, 2010, 10:52:58 pm by blueznet |
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reverb output tranny question
Started by 67polara |
10 Replies
5533 Views |
September 27, 2010, 07:10:35 pm by EL34 |
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3 Replies
4448 Views |
September 27, 2010, 07:01:37 pm by LooseChange |
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fender choke in marshall?
Started by rdrgtr |
6 Replies
5265 Views |
September 27, 2010, 06:17:56 pm by tubeswell |
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4 tube power amp
Started by jeff |
5 Replies
4578 Views |
September 27, 2010, 05:34:39 pm by eleventeen |
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spacing tubes for layout
Started by zfiles1701 |
5 Replies
4736 Views |
September 27, 2010, 01:36:47 pm by kagliostro |
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Shielded EQ
Started by plexi50 |
6 Replies
4903 Views |
September 26, 2010, 08:12:29 pm by plexi50 |
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Revisiting Bass Amps, Final Critique
Started by bluesbear |
20 Replies
8892 Views |
September 26, 2010, 07:11:16 pm by Tone Junkie |
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5 Replies
4331 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
3372 Views |
September 26, 2010, 03:41:52 pm by tubenit |
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plate to cathode cap
Started by rdrgtr |
7 Replies
6994 Views |
September 26, 2010, 10:09:27 am by Tiny_Daddy |
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9 Replies
5309 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
3400 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
4717 Views |
September 24, 2010, 06:52:27 pm by Madison |
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5879 RCA or Silvania?
Started by 67polara |
7 Replies
5111 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
5275 Views |
September 23, 2010, 08:11:20 pm by tubeswell |
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tube markings
Started by ampcabinets |
3 Replies
3687 Views |
September 23, 2010, 11:37:53 am by PRR |
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