Welcome To the Hoffman Amplifiers Forum
March 11, 2026, 11:18:47 am
Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 11:18:47 am | ||
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| 0 Members and 41 Guests are viewing this board. | ||||
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Ampeg Reverberocket Reissue Mods
Started by davidb |
2 Replies
2723 Views |
March 20, 2022, 05:29:17 pmby davidb |
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6 Replies
2604 Views |
March 20, 2022, 01:36:33 pm by smackoj |
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Fender solid state Harvard combo
Started by phsyconoodler |
18 Replies
9269 Views |
March 20, 2022, 03:18:35 am by Latole |
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Blues Jr. Converted to AC15
Started by jamaio |
2 Replies
2379 Views |
March 19, 2022, 05:18:31 pm by jamaio |
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First time I’ve seen this
Started by Blueboozer |
10 Replies
3625 Views |
March 19, 2022, 04:44:17 pm by uki |
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0A2
Started by Stuff4bikes |
1 Replies
2207 Views |
March 19, 2022, 10:51:57 am by sluckey |
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Unusual tube query
Started by isaac_teller |
2 Replies
2421 Views |
March 19, 2022, 08:56:11 am by isaac_teller |
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Supertwin help needed
Started by howardmoon |
19 Replies
5431 Views |
March 18, 2022, 09:32:25 pm by howardmoon |
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power tube 1 ohm to ground confusion
Started by joesatch |
16 Replies
5790 Views |
March 18, 2022, 06:16:44 pm by Dyerseve726 |
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Build suggestions for a W02273 PT
Started by 72Blazer |
6 Replies
3295 Views |
March 18, 2022, 12:16:23 am by Dyerseve726 |
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Old Timey 6K6 build
Started by bmccowan |
17 Replies
5283 Views |
March 17, 2022, 11:49:32 am by bmccowan |
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How to Bias Fender PA 100 / Twin
Started by TerryD |
2 Replies
2908 Views |
March 17, 2022, 07:55:52 am by pdf64 |
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Enclosed VS Open Frame choke
Started by Jonas |
6 Replies
3314 Views |
March 16, 2022, 09:18:06 pm by tubeswell |
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Sovtek MIG100H elusive hum
Started by luis.castillo |
5 Replies
3238 Views |
March 16, 2022, 01:12:06 pm by luis.castillo |
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28 Replies
7955 Views |
March 16, 2022, 10:50:24 am by Soulfetish |
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16 Replies
5116 Views |
March 16, 2022, 10:49:01 am by pdf64 |
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Marshall Haze 40 Intermittent Volume Drop
Started by Travis8 |
10 Replies
4625 Views |
March 16, 2022, 10:03:52 am by Latole |
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Bias supply resistor question.
Started by joesatch |
1 Replies
2275 Views |
March 16, 2022, 02:54:15 am by sluckey |
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Do I have a problem?
Started by dbishopbliss |
5 Replies
3053 Views |
March 15, 2022, 07:36:39 pm by glass54 |
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15 Replies
5335 Views |
March 15, 2022, 04:53:22 pm by kagliostro |
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12 Replies
4800 Views |
March 14, 2022, 11:39:58 am by dwinstonwood |
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Filter cans and Hammond AO-43 chassis
Started by dude |
4 Replies
2737 Views |
March 14, 2022, 10:36:32 am by dude |
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Cathode biasing technique
Started by Voxbox |
21 Replies
5818 Views |
March 13, 2022, 12:39:32 pm by HotBluePlates |
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5E3 Dumble Mods
Started by dpm309 |
3 Replies
3573 Views |
March 13, 2022, 10:09:35 am by Madjackhatter |
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Something New
Started by TIMBO |
3 Replies
2529 Views |
March 13, 2022, 01:55:02 am by kagliostro |
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12 Replies
5316 Views |
March 12, 2022, 12:19:37 pm by fkitch |
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Princeton Reverb build trem problem
Started by punkykatt |
9 Replies
3115 Views |
March 12, 2022, 04:26:34 am by punkykatt |
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22 Replies
19788 Views |
March 12, 2022, 02:35:04 am by frankk |
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10 Replies
4140 Views |
March 11, 2022, 09:16:04 pm by sluckey |
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AC inlet for petalboard
Started by luthierwnc |
5 Replies
3513 Views |
March 11, 2022, 08:15:13 pm by luthierwnc |
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Pots for old amps
Started by schturlan |
14 Replies
5287 Views |
March 11, 2022, 03:56:47 pm by Latole |
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Screen resistors
Started by fritz203 |
3 Replies
2675 Views |
March 11, 2022, 08:51:29 am by fritz203 |
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Cathodyne PPIVMV
Started by willwaush |
19 Replies
6967 Views |
March 10, 2022, 01:00:52 pm by jojokeo |
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Kalamazoo 2 tremolo intensity
Started by isaac_teller |
7 Replies
3947 Views |
March 10, 2022, 04:47:49 am by sluckey |
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Mini amp build, 2 problems
Started by AmberB |
22 Replies
6640 Views |
March 09, 2022, 08:05:50 pm by PRR |
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Line out for an AB763 amp?
Started by 72Blazer |
5 Replies
3799 Views |
March 09, 2022, 07:58:27 pm by SILVERGUN |
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14 Replies
5544 Views |
March 09, 2022, 05:09:20 pm by Dyerseve726 |
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Fender Faceplates
Started by jy67 |
2 Replies
2779 Views |
March 09, 2022, 04:06:58 pm by jy67 |
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Suggestions for two extra triodes?
Started by dwinstonwood |
32 Replies
8486 Views |
March 09, 2022, 02:07:40 pm by dwinstonwood |
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Applications for UL84 tubes
Started by Rontone |
5 Replies
3630 Views |
March 09, 2022, 03:42:15 am by kagliostro |
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Question about Merlin's grounding
Started by dwinstonwood |
33 Replies
9247 Views |
March 08, 2022, 12:41:14 pm by dwinstonwood |
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Preamp tube proximity. marshall mod
Started by joesatch |
7 Replies
4018 Views |
March 08, 2022, 08:33:04 am by dwinstonwood |
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Do New Amps "Burn In?"
Started by DougGuy |
19 Replies
6407 Views |
March 07, 2022, 10:30:01 am by jojokeo |
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Power XFMR/Output XFMR relationship
Started by Dealbreaker |
15 Replies
5197 Views |
March 07, 2022, 09:16:18 am by Dealbreaker |
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Replacing electrolytic cap cans
Started by Erik Aa |
6 Replies
3266 Views |
March 06, 2022, 10:17:42 am by Erik Aa |
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Non polarized cap in bias circuit
Started by Stuff4bikes |
1 Replies
2448 Views |
March 05, 2022, 07:16:34 pm by sluckey |
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hammond 125J question
Started by jackplug1 |
6 Replies
4113 Views |
March 05, 2022, 08:05:34 am by jackplug1 |
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Slow tremolo mod
Started by valvetones |
8 Replies
4836 Views |
March 05, 2022, 06:55:44 am by sluckey |
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5 Replies
3703 Views |
March 04, 2022, 09:57:38 pm by texwest |
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Wem Westminster MK9 schematic question
Started by Wonder2121 |
5 Replies
4157 Views |
March 04, 2022, 03:22:10 pm by pdf64 |
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