Welcome To the Hoffman Amplifiers Forum
October 22, 2025, 05:52:48 pm
Welcome To the Hoffman Amplifiers ForumOctober 22, 2025, 05:52:48 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 68 Guests are viewing this board. | ||||
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AC inlet for petalboard
Started by luthierwnc |
5 Replies
2597 Views |
March 11, 2022, 08:15:13 pmby luthierwnc |
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Pots for old amps
Started by schturlan |
14 Replies
3884 Views |
March 11, 2022, 03:56:47 pm by Latole |
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Screen resistors
Started by fritz203 |
3 Replies
1822 Views |
March 11, 2022, 08:51:29 am by fritz203 |
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Cathodyne PPIVMV
Started by willwaush |
19 Replies
5192 Views |
March 10, 2022, 01:00:52 pm by jojokeo |
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Kalamazoo 2 tremolo intensity
Started by isaac_teller |
7 Replies
2873 Views |
March 10, 2022, 04:47:49 am by sluckey |
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Mini amp build, 2 problems
Started by AmberB |
22 Replies
4901 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
2726 Views |
March 09, 2022, 07:58:27 pm by SILVERGUN |
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14 Replies
3862 Views |
March 09, 2022, 05:09:20 pm by Dyerseve726 |
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Fender Faceplates
Started by jy67 |
2 Replies
1852 Views |
March 09, 2022, 04:06:58 pm by jy67 |
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Suggestions for two extra triodes?
Started by dwinstonwood |
32 Replies
6147 Views |
March 09, 2022, 02:07:40 pm by dwinstonwood |
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Applications for UL84 tubes
Started by Rontone |
5 Replies
2581 Views |
March 09, 2022, 03:42:15 am by kagliostro |
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Question about Merlin's grounding
Started by dwinstonwood |
33 Replies
6871 Views |
March 08, 2022, 12:41:14 pm by dwinstonwood |
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Preamp tube proximity. marshall mod
Started by joesatch |
7 Replies
2873 Views |
March 08, 2022, 08:33:04 am by dwinstonwood |
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Do New Amps "Burn In?"
Started by DougGuy |
19 Replies
4714 Views |
March 07, 2022, 10:30:01 am by jojokeo |
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Power XFMR/Output XFMR relationship
Started by Dealbreaker |
15 Replies
3663 Views |
March 07, 2022, 09:16:18 am by Dealbreaker |
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Replacing electrolytic cap cans
Started by Erik Aa |
6 Replies
2114 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
1646 Views |
March 05, 2022, 07:16:34 pm by sluckey |
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hammond 125J question
Started by jackplug1 |
6 Replies
2889 Views |
March 05, 2022, 08:05:34 am by jackplug1 |
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Slow tremolo mod
Started by valvetones |
8 Replies
3444 Views |
March 05, 2022, 06:55:44 am by sluckey |
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5 Replies
2492 Views |
March 04, 2022, 09:57:38 pm by texwest |
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Wem Westminster MK9 schematic question
Started by Wonder2121 |
5 Replies
3017 Views |
March 04, 2022, 03:22:10 pm by pdf64 |
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3 Replies
2068 Views |
March 04, 2022, 10:09:12 am by mresistor |
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1 Replies
1725 Views |
March 04, 2022, 10:00:25 am by sluckey |
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1966 Fender Bassman 100% Original
Started by jamaio |
28 Replies
6752 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
2917 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
1755 Views |
March 02, 2022, 06:25:24 am by Leevi |
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7 Replies
2313 Views |
March 01, 2022, 11:28:19 pm by bmccowan |
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7 Replies
4137 Views |
March 01, 2022, 07:37:23 pm by AmberB |
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63 Replies
8830 Views |
March 01, 2022, 01:56:40 pm by RadioComm |
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EF86 Vibroverb
Started by valvetones |
9 Replies
2582 Views |
March 01, 2022, 01:43:14 pm by valvetones |
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1 ohm cathode resistor
Started by AmberB |
42 Replies
9419 Views |
March 01, 2022, 11:00:37 am by pdf64 |
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AC15 Volume Issues
Started by ebulakowski |
13 Replies
3434 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
4361 Views |
February 28, 2022, 09:31:25 pm by liddokun |
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24 Replies
4919 Views |
February 28, 2022, 05:13:14 pm by 72Blazer |
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LM master volume question
Started by Esquirefreak |
5 Replies
2325 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
3189 Views |
February 28, 2022, 05:13:11 am by Bigjoedo |
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UberGain PowerSupply
Started by MiniVanMan |
3 Replies
2190 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
4183 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
3667 Views |
February 27, 2022, 07:14:31 am by pbman1953 |
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12 Replies
3297 Views |
February 26, 2022, 07:43:33 pm by sluckey |
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Japanese Switches
Started by jy67 |
1 Replies
1817 Views |
February 26, 2022, 02:06:54 pm by mresistor |
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30 Replies
9547 Views |
February 26, 2022, 10:52:53 am by sluckey |
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5 Replies
2658 Views |
February 25, 2022, 06:53:43 pm by trobbins |
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Blues junior plate voltage issue
Started by Colas LeGrippa |
35 Replies
6648 Views |
February 25, 2022, 01:28:31 pm by Colas LeGrippa |
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Shock mount for EF86...any advice?
Started by PharmRock |
11 Replies
3882 Views |
February 25, 2022, 12:12:46 am by kagliostro |
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Single Channel AB763 w/VB Tremolo
Started by Blind Lemon |
23 Replies
4624 Views |
February 24, 2022, 05:20:47 pm by Blind Lemon |
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SF Princeton (NR) Trem Mod Question
Started by plumcrazyfx |
4 Replies
1943 Views |
February 24, 2022, 03:42:43 pm by plumcrazyfx |
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Need help with 1966 Kay model 720
Started by smackoj |
10 Replies
3440 Views |
February 24, 2022, 09:51:20 am by smackoj |
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Mini-Bassman question
Started by bmccowan |
7 Replies
2245 Views |
February 23, 2022, 07:10:50 pm by bmccowan |
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Show us your breadboard!
Started by uki |
10 Replies
3853 Views |
February 23, 2022, 07:01:00 am by uki |
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