Welcome To the Hoffman Amplifiers Forum
December 09, 2025, 09:55:09 am
Welcome To the Hoffman Amplifiers ForumDecember 09, 2025, 09:55:09 am | ||
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4 Replies
8035 Views |
October 09, 2010, 01:19:28 pmby eleventeen |
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Phase shift between preamp and PI?
Started by chip |
1 Replies
3015 Views |
October 09, 2010, 11:02:17 am by sluckey |
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zener diodes for voltage drop
Started by rdrgtr |
4 Replies
6066 Views |
October 09, 2010, 09:02:29 am by Fresh_Start |
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Improving a Deluxe Reverb
Started by fiftynine |
19 Replies
12711 Views |
October 09, 2010, 08:39:15 am by alerich |
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Feedback question...
Started by Ritchie200 |
1 Replies
2653 Views |
October 09, 2010, 06:18:07 am by Geezer |
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Troubleshooting SE homebuilt amp
Started by Twangmaster |
11 Replies
5331 Views |
October 08, 2010, 10:34:13 pm by Twangmaster |
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Mars OD special "idea"
Started by tubenit |
2 Replies
3128 Views |
October 08, 2010, 08:26:13 pm by 67polara |
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Blues Jr - Odd Topology
Started by Fresh_Start |
7 Replies
5567 Views |
October 08, 2010, 07:10:30 pm by jjasilli |
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Hammond Universal 125d OT
Started by TIMBO |
7 Replies
5446 Views |
October 08, 2010, 03:09:23 pm by TIMBO |
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5E3/5G9 Hotswitch mod
Started by deqqed |
4 Replies
3582 Views |
October 08, 2010, 01:36:16 pm by topbrent |
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Where have all the 6550's gone?
Started by bigsbybender |
12 Replies
5964 Views |
October 08, 2010, 11:24:25 am by simonallaway |
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data sheet for EH 7591 power tube
Started by punkykatt |
5 Replies
5350 Views |
October 08, 2010, 08:29:59 am by FYL |
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Sovtek vs. Electro-Harmonix 12AX7
Started by panhead |
14 Replies
20134 Views |
October 08, 2010, 06:26:34 am by bluesbear |
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100Rs for heater artificial CT ?
Started by Madison |
15 Replies
9309 Views |
October 08, 2010, 12:34:38 am by The_Gaz |
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Ampeg V2 No Filiment Light
Started by plexi50 |
7 Replies
4825 Views |
October 07, 2010, 11:25:29 pm by eleventeen |
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12AX7 With no Glow?
Started by Platefire |
2 Replies
3559 Views |
October 07, 2010, 11:22:11 pm by Platefire |
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5 Replies
5126 Views |
October 07, 2010, 05:46:49 pm by LooseChange |
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twin reverb, power tube current, etc.
Started by CraigB |
6 Replies
3862 Views |
October 07, 2010, 02:01:21 pm by mresistor |
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8 Replies
4995 Views |
October 07, 2010, 12:36:52 pm by PRR |
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Lar mar master
Started by phsyconoodler |
12 Replies
6405 Views |
October 07, 2010, 10:23:05 am by phsyconoodler |
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5 Replies
3752 Views |
October 07, 2010, 09:55:03 am by Tone Junkie |
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11 Replies
4864 Views |
October 07, 2010, 03:26:26 am by tubeswell |
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13 Replies
6473 Views |
October 06, 2010, 09:20:06 pm by Fresh_Start |
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New 5f1 build squeals
Started by mpryor224 |
19 Replies
11188 Views |
October 06, 2010, 01:31:50 pm by stingray_65 |
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telephone troubleshooting a 5E3 Mission Kit
Started by dwp |
5 Replies
4765 Views |
October 06, 2010, 10:17:20 am by phsyconoodler |
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old made in USA 12AU7's
Started by oldhippy |
17 Replies
10236 Views |
October 05, 2010, 11:08:31 pm by bigsbybender |
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OT wiring Question
Started by Platefire |
7 Replies
4373 Views |
October 05, 2010, 10:03:26 am by Platefire |
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Power transformers test method ?
Started by kagliostro |
7 Replies
7633 Views |
October 05, 2010, 02:20:28 am by kagliostro |
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Help Identifying Transformers
Started by knotscott |
18 Replies
8197 Views |
October 05, 2010, 12:43:06 am by PRR |
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Tos build done
Started by Tone Junkie |
10 Replies
4978 Views |
October 04, 2010, 06:04:36 pm by Tone Junkie |
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10 Replies
5480 Views |
October 04, 2010, 04:52:16 pm by Shrapnel |
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More loose power amp ?
Started by mat |
3 Replies
3239 Views |
October 04, 2010, 04:07:38 pm by phsyconoodler |
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11 Replies
6374 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
3381 Views |
October 04, 2010, 05:55:30 am by tubenit |
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TOS (TIMBO'S OUTSTANDING SUCCESS)!!!!
Started by TIMBO |
14 Replies
8690 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
7025 Views |
October 03, 2010, 03:18:32 pm by Tone Junkie |
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Compactrons
Started by stingray_65 |
3 Replies
3968 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
21906 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
7809 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
12440 Views |
October 02, 2010, 05:15:00 pm by imaradiostar |
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TOS schematic values and BOM??
Started by 67polara |
12 Replies
6173 Views |
October 02, 2010, 11:25:44 am by PRR |
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MOVED: Very interesting quote
Started by tubenit |
0 Replies
3004 Views |
October 01, 2010, 06:19:39 pm by tubenit |
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D_mble build into TOS
Started by mat |
19 Replies
8300 Views |
October 01, 2010, 11:44:32 am by mat |
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1 Replies
2956 Views |
October 01, 2010, 11:06:24 am by Geezer |
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28 Replies
14537 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
4184 Views |
September 30, 2010, 11:53:02 am by macula56 |
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Soldering question regarding turrets
Started by Platefire |
12 Replies
6377 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
6275 Views |
September 30, 2010, 08:37:48 am by Madison |
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20 Replies
9703 Views |
September 30, 2010, 01:14:50 am by Platefire |
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2 Replies
6428 Views |
September 29, 2010, 08:26:14 pm by PRR |
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