Welcome To the Hoffman Amplifiers Forum
March 11, 2026, 04:00:32 pm
Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 04:00:32 pm | ||
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| dogburn, passaloutre, Glenn and 99 Guests are viewing this board. | ||||
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Wem Westminster MK9 schematic question
Started by Wonder2121 |
5 Replies
4157 Views |
March 04, 2022, 03:22:10 pmby pdf64 |
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3 Replies
3090 Views |
March 04, 2022, 10:09:12 am by mresistor |
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1 Replies
2651 Views |
March 04, 2022, 10:00:25 am by sluckey |
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1966 Fender Bassman 100% Original
Started by jamaio |
28 Replies
8991 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
4117 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
2695 Views |
March 02, 2022, 06:25:24 am by Leevi |
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7 Replies
3598 Views |
March 01, 2022, 11:28:19 pm by bmccowan |
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7 Replies
5544 Views |
March 01, 2022, 07:37:23 pm by AmberB |
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63 Replies
12625 Views |
March 01, 2022, 01:56:40 pm by RadioComm |
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EF86 Vibroverb
Started by valvetones |
9 Replies
3798 Views |
March 01, 2022, 01:43:14 pm by valvetones |
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1 ohm cathode resistor
Started by AmberB |
42 Replies
12969 Views |
March 01, 2022, 11:00:37 am by pdf64 |
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AC15 Volume Issues
Started by ebulakowski |
13 Replies
4934 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
6364 Views |
February 28, 2022, 09:31:25 pm by liddokun |
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24 Replies
6887 Views |
February 28, 2022, 05:13:14 pm by 72Blazer |
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LM master volume question
Started by Esquirefreak |
5 Replies
3569 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
4531 Views |
February 28, 2022, 05:13:11 am by Bigjoedo |
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UberGain PowerSupply
Started by MiniVanMan |
3 Replies
3392 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
5794 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
5282 Views |
February 27, 2022, 07:14:31 am by pbman1953 |
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12 Replies
4809 Views |
February 26, 2022, 07:43:33 pm by sluckey |
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Japanese Switches
Started by jy67 |
1 Replies
2948 Views |
February 26, 2022, 02:06:54 pm by mresistor |
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30 Replies
13091 Views |
February 26, 2022, 10:52:53 am by sluckey |
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5 Replies
3991 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
8853 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
5417 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
6432 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
3087 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
4890 Views |
February 24, 2022, 09:51:20 am by smackoj |
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Mini-Bassman question
Started by bmccowan |
7 Replies
3503 Views |
February 23, 2022, 07:10:50 pm by bmccowan |
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Show us your breadboard!
Started by uki |
10 Replies
5358 Views |
February 23, 2022, 07:01:00 am by uki |
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6 Replies
3723 Views |
February 23, 2022, 03:01:28 am by Latole |
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Merit A2904 OT help
Started by munkeyboy |
9 Replies
5317 Views |
February 22, 2022, 05:24:51 pm by frankenxtein |
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9 Replies
3980 Views |
February 22, 2022, 04:50:56 pm by Colas LeGrippa |
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2 Replies
2761 Views |
February 22, 2022, 09:46:21 am by acheld |
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pot value question
Started by pbman1953 |
49 Replies
10841 Views |
February 22, 2022, 06:25:02 am by pbman1953 |
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Bias setting for 5F6A
Started by Johnnydoright |
10 Replies
4211 Views |
February 22, 2022, 12:33:49 am by PRR |
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Vactrol Questions
Started by skeprico |
3 Replies
3016 Views |
February 21, 2022, 05:34:15 pm by skeprico |
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Dumont tube brand ??
Started by kagliostro |
22 Replies
8834 Views |
February 21, 2022, 01:33:12 pm by sluckey |
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38 Replies
11149 Views |
February 21, 2022, 12:38:21 pm by PRR |
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7 Replies
3752 Views |
February 20, 2022, 06:48:34 pm by Hoodnight |
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4 Replies
3781 Views |
February 20, 2022, 05:44:01 pm by timmyjoe |
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1958 Fender Basman Restoration
Started by Garrett335 |
12 Replies
5659 Views |
February 20, 2022, 03:00:36 pm by PRR |
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EL-34 screen grid resistors
Started by AmberB |
5 Replies
5659 Views |
February 20, 2022, 02:43:27 pm by HotBluePlates |
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55 Replies
12910 Views |
February 20, 2022, 02:36:09 pm by Latole |
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14 Replies
5484 Views |
February 20, 2022, 11:17:10 am by Erik Aa |
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Randall LB103 ; need schematic
Started by Latole |
25 Replies
7072 Views |
February 20, 2022, 10:09:42 am by Latole |
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6 Replies
4311 Views |
February 20, 2022, 08:13:47 am by PharmRock |
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5E3 Squeal with Volume Interaction
Started by timmyjoe |
5 Replies
3426 Views |
February 19, 2022, 09:38:38 pm by timmyjoe |
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Cool Ambrosia Maple - Sound clip added
Started by p2pAmps |
14 Replies
5146 Views |
February 19, 2022, 08:54:25 pm by p2pAmps |
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Alternative turrets ?
Started by uki |
3 Replies
3151 Views |
February 19, 2022, 04:08:52 pm by sluckey |
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