Welcome To the Hoffman Amplifiers Forum
January 23, 2026, 09:55:34 pm
Welcome To the Hoffman Amplifiers ForumJanuary 23, 2026, 09:55:34 pm | ||
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Do I have a problem?
Started by dbishopbliss |
5 Replies
2855 Views |
March 15, 2022, 07:36:39 pmby glass54 |
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15 Replies
4995 Views |
March 15, 2022, 04:53:22 pm by kagliostro |
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12 Replies
4515 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
2523 Views |
March 14, 2022, 10:36:32 am by dude |
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Cathode biasing technique
Started by Voxbox |
21 Replies
5514 Views |
March 13, 2022, 12:39:32 pm by HotBluePlates |
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5E3 Dumble Mods
Started by dpm309 |
3 Replies
3353 Views |
March 13, 2022, 10:09:35 am by Madjackhatter |
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Something New
Started by TIMBO |
3 Replies
2333 Views |
March 13, 2022, 01:55:02 am by kagliostro |
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12 Replies
4965 Views |
March 12, 2022, 12:19:37 pm by fkitch |
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Princeton Reverb build trem problem
Started by punkykatt |
9 Replies
2918 Views |
March 12, 2022, 04:26:34 am by punkykatt |
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22 Replies
19262 Views |
March 12, 2022, 02:35:04 am by frankk |
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10 Replies
3807 Views |
March 11, 2022, 09:16:04 pm by sluckey |
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AC inlet for petalboard
Started by luthierwnc |
5 Replies
3254 Views |
March 11, 2022, 08:15:13 pm by luthierwnc |
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Pots for old amps
Started by schturlan |
14 Replies
4919 Views |
March 11, 2022, 03:56:47 pm by Latole |
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Screen resistors
Started by fritz203 |
3 Replies
2438 Views |
March 11, 2022, 08:51:29 am by fritz203 |
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Cathodyne PPIVMV
Started by willwaush |
19 Replies
6502 Views |
March 10, 2022, 01:00:52 pm by jojokeo |
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Kalamazoo 2 tremolo intensity
Started by isaac_teller |
7 Replies
3643 Views |
March 10, 2022, 04:47:49 am by sluckey |
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Mini amp build, 2 problems
Started by AmberB |
22 Replies
6180 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
3495 Views |
March 09, 2022, 07:58:27 pm by SILVERGUN |
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14 Replies
5046 Views |
March 09, 2022, 05:09:20 pm by Dyerseve726 |
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Fender Faceplates
Started by jy67 |
2 Replies
2499 Views |
March 09, 2022, 04:06:58 pm by jy67 |
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Suggestions for two extra triodes?
Started by dwinstonwood |
32 Replies
7875 Views |
March 09, 2022, 02:07:40 pm by dwinstonwood |
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Applications for UL84 tubes
Started by Rontone |
5 Replies
3330 Views |
March 09, 2022, 03:42:15 am by kagliostro |
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Question about Merlin's grounding
Started by dwinstonwood |
33 Replies
8515 Views |
March 08, 2022, 12:41:14 pm by dwinstonwood |
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Preamp tube proximity. marshall mod
Started by joesatch |
7 Replies
3648 Views |
March 08, 2022, 08:33:04 am by dwinstonwood |
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Do New Amps "Burn In?"
Started by DougGuy |
19 Replies
5861 Views |
March 07, 2022, 10:30:01 am by jojokeo |
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Power XFMR/Output XFMR relationship
Started by Dealbreaker |
15 Replies
4734 Views |
March 07, 2022, 09:16:18 am by Dealbreaker |
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Replacing electrolytic cap cans
Started by Erik Aa |
6 Replies
2892 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
2162 Views |
March 05, 2022, 07:16:34 pm by sluckey |
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hammond 125J question
Started by jackplug1 |
6 Replies
3720 Views |
March 05, 2022, 08:05:34 am by jackplug1 |
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Slow tremolo mod
Started by valvetones |
8 Replies
4386 Views |
March 05, 2022, 06:55:44 am by sluckey |
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5 Replies
3272 Views |
March 04, 2022, 09:57:38 pm by texwest |
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Wem Westminster MK9 schematic question
Started by Wonder2121 |
5 Replies
3779 Views |
March 04, 2022, 03:22:10 pm by pdf64 |
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3 Replies
2754 Views |
March 04, 2022, 10:09:12 am by mresistor |
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1 Replies
2304 Views |
March 04, 2022, 10:00:25 am by sluckey |
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1966 Fender Bassman 100% Original
Started by jamaio |
28 Replies
8310 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
3721 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
2364 Views |
March 02, 2022, 06:25:24 am by Leevi |
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7 Replies
3172 Views |
March 01, 2022, 11:28:19 pm by bmccowan |
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7 Replies
5066 Views |
March 01, 2022, 07:37:23 pm by AmberB |
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63 Replies
11403 Views |
March 01, 2022, 01:56:40 pm by RadioComm |
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EF86 Vibroverb
Started by valvetones |
9 Replies
3353 Views |
March 01, 2022, 01:43:14 pm by valvetones |
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1 ohm cathode resistor
Started by AmberB |
42 Replies
11652 Views |
March 01, 2022, 11:00:37 am by pdf64 |
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AC15 Volume Issues
Started by ebulakowski |
13 Replies
4446 Views |
March 01, 2022, 10:59:50 am by valvetones |
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Out of spec transformers and testing
Started by liddokun |
18 Replies
5733 Views |
February 28, 2022, 09:31:25 pm by liddokun |
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24 Replies
6322 Views |
February 28, 2022, 05:13:14 pm by 72Blazer |
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LM master volume question
Started by Esquirefreak |
5 Replies
3146 Views |
February 28, 2022, 03:31:17 pm by Esquirefreak |
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Princeton 5F2-A Clone TONE Pot values
Started by Bigjoedo |
5 Replies
4093 Views |
February 28, 2022, 05:13:11 am by Bigjoedo |
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UberGain PowerSupply
Started by MiniVanMan |
3 Replies
2967 Views |
February 27, 2022, 09:38:34 pm by PRR |
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Stout Reverb Build / No Audio - Fixed
Started by jamaio |
8 Replies
5251 Views |
February 27, 2022, 06:54:50 pm by tubenit |
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Measuring the primary of an OT
Started by pbman1953 |
11 Replies
4757 Views |
February 27, 2022, 07:14:31 am by pbman1953 |
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