Welcome To the Hoffman Amplifiers Forum
April 26, 2026, 01:55:12 am
Welcome To the Hoffman Amplifiers ForumApril 26, 2026, 01:55:12 am | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 29 Guests are viewing this board. | ||||
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power tube 1 ohm to ground confusion
Started by joesatch |
16 Replies
6280 Views |
March 18, 2022, 06:16:44 pmby Dyerseve726 |
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Build suggestions for a W02273 PT
Started by 72Blazer |
6 Replies
3599 Views |
March 18, 2022, 12:16:23 am by Dyerseve726 |
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Old Timey 6K6 build
Started by bmccowan |
17 Replies
5740 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
3246 Views |
March 17, 2022, 07:55:52 am by pdf64 |
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Enclosed VS Open Frame choke
Started by Jonas |
6 Replies
3666 Views |
March 16, 2022, 09:18:06 pm by tubeswell |
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Sovtek MIG100H elusive hum
Started by luis.castillo |
5 Replies
3613 Views |
March 16, 2022, 01:12:06 pm by luis.castillo |
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28 Replies
8820 Views |
March 16, 2022, 10:50:24 am by Soulfetish |
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16 Replies
5574 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
5054 Views |
March 16, 2022, 10:03:52 am by Latole |
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Bias supply resistor question.
Started by joesatch |
1 Replies
2573 Views |
March 16, 2022, 02:54:15 am by sluckey |
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Do I have a problem?
Started by dbishopbliss |
5 Replies
3376 Views |
March 15, 2022, 07:36:39 pm by glass54 |
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15 Replies
5845 Views |
March 15, 2022, 04:53:22 pm by kagliostro |
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12 Replies
5223 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
3067 Views |
March 14, 2022, 10:36:32 am by dude |
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Cathode biasing technique
Started by Voxbox |
21 Replies
6299 Views |
March 13, 2022, 12:39:32 pm by HotBluePlates |
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5E3 Dumble Mods
Started by dpm309 |
3 Replies
3959 Views |
March 13, 2022, 10:09:35 am by Madjackhatter |
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Something New
Started by TIMBO |
3 Replies
2858 Views |
March 13, 2022, 01:55:02 am by kagliostro |
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12 Replies
5789 Views |
March 12, 2022, 12:19:37 pm by fkitch |
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Princeton Reverb build trem problem
Started by punkykatt |
9 Replies
3367 Views |
March 12, 2022, 04:26:34 am by punkykatt |
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22 Replies
20577 Views |
March 12, 2022, 02:35:04 am by frankk |
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10 Replies
4596 Views |
March 11, 2022, 09:16:04 pm by sluckey |
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AC inlet for petalboard
Started by luthierwnc |
5 Replies
3863 Views |
March 11, 2022, 08:15:13 pm by luthierwnc |
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Pots for old amps
Started by schturlan |
14 Replies
5820 Views |
March 11, 2022, 03:56:47 pm by Latole |
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Screen resistors
Started by fritz203 |
3 Replies
3053 Views |
March 11, 2022, 08:51:29 am by fritz203 |
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Cathodyne PPIVMV
Started by willwaush |
19 Replies
7653 Views |
March 10, 2022, 01:00:52 pm by jojokeo |
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Kalamazoo 2 tremolo intensity
Started by isaac_teller |
7 Replies
4393 Views |
March 10, 2022, 04:47:49 am by sluckey |
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Mini amp build, 2 problems
Started by AmberB |
22 Replies
7329 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
4233 Views |
March 09, 2022, 07:58:27 pm by SILVERGUN |
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14 Replies
6236 Views |
March 09, 2022, 05:09:20 pm by Dyerseve726 |
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Fender Faceplates
Started by jy67 |
2 Replies
3213 Views |
March 09, 2022, 04:06:58 pm by jy67 |
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Suggestions for two extra triodes?
Started by dwinstonwood |
32 Replies
9340 Views |
March 09, 2022, 02:07:40 pm by dwinstonwood |
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Applications for UL84 tubes
Started by Rontone |
5 Replies
4098 Views |
March 09, 2022, 03:42:15 am by kagliostro |
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Question about Merlin's grounding
Started by dwinstonwood |
33 Replies
10046 Views |
March 08, 2022, 12:41:14 pm by dwinstonwood |
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Preamp tube proximity. marshall mod
Started by joesatch |
7 Replies
4549 Views |
March 08, 2022, 08:33:04 am by dwinstonwood |
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Do New Amps "Burn In?"
Started by DougGuy |
19 Replies
7208 Views |
March 07, 2022, 10:30:01 am by jojokeo |
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Power XFMR/Output XFMR relationship
Started by Dealbreaker |
15 Replies
5826 Views |
March 07, 2022, 09:16:18 am by Dealbreaker |
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Replacing electrolytic cap cans
Started by Erik Aa |
6 Replies
3801 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
2870 Views |
March 05, 2022, 07:16:34 pm by sluckey |
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hammond 125J question
Started by jackplug1 |
6 Replies
4670 Views |
March 05, 2022, 08:05:34 am by jackplug1 |
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Slow tremolo mod
Started by valvetones |
8 Replies
5503 Views |
March 05, 2022, 06:55:44 am by sluckey |
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5 Replies
4283 Views |
March 04, 2022, 09:57:38 pm by texwest |
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Wem Westminster MK9 schematic question
Started by Wonder2121 |
5 Replies
4725 Views |
March 04, 2022, 03:22:10 pm by pdf64 |
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3 Replies
3561 Views |
March 04, 2022, 10:09:12 am by mresistor |
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1 Replies
3139 Views |
March 04, 2022, 10:00:25 am by sluckey |
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1966 Fender Bassman 100% Original
Started by jamaio |
28 Replies
10017 Views |
March 03, 2022, 09:08:50 pm by jamaio |
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Convert schematic to layout
Started by ok_state_blues |
6 Replies
4696 Views |
March 02, 2022, 01:55:59 pm by ok_state_blues |
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News Update Valve Supplies
Started by Latole |
1 Replies
3155 Views |
March 02, 2022, 06:25:24 am by Leevi |
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7 Replies
4131 Views |
March 01, 2022, 11:28:19 pm by bmccowan |
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7 Replies
6147 Views |
March 01, 2022, 07:37:23 pm by AmberB |
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63 Replies
14155 Views |
March 01, 2022, 01:56:40 pm by RadioComm |
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