Welcome To the Hoffman Amplifiers Forum
August 29, 2026, 05:49:05 pm
Welcome To the Hoffman Amplifiers ForumAugust 29, 2026, 05:49:05 pm | ||
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| 0 Members and 131 Guests are viewing this board. | ||||
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Replacing electrolytic cap cans
Started by Erik Aa |
6 Replies
4950 Views |
March 06, 2022, 10:17:42 amby Erik Aa |
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Non polarized cap in bias circuit
Started by Stuff4bikes |
1 Replies
3793 Views |
March 05, 2022, 07:16:34 pm by sluckey |
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hammond 125J question
Started by jackplug1 |
6 Replies
5763 Views |
March 05, 2022, 08:05:34 am by jackplug1 |
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Slow tremolo mod
Started by valvetones |
8 Replies
6637 Views |
March 05, 2022, 06:55:44 am by sluckey |
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5 Replies
5517 Views |
March 04, 2022, 09:57:38 pm by texwest |
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Wem Westminster MK9 schematic question
Started by Wonder2121 |
5 Replies
5780 Views |
March 04, 2022, 03:22:10 pm by pdf64 |
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3 Replies
4515 Views |
March 04, 2022, 10:09:12 am by mresistor |
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1 Replies
4144 Views |
March 04, 2022, 10:00:25 am by sluckey |
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1966 Fender Bassman 100% Original
Started by jamaio |
28 Replies
13117 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
5879 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
4084 Views |
March 02, 2022, 06:25:24 am by Leevi |
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7 Replies
5304 Views |
March 01, 2022, 11:28:19 pm by bmccowan |
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7 Replies
7479 Views |
March 01, 2022, 07:37:23 pm by AmberB |
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63 Replies
18041 Views |
March 01, 2022, 01:56:40 pm by RadioComm |
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EF86 Vibroverb
Started by valvetones |
9 Replies
5442 Views |
March 01, 2022, 01:43:14 pm by valvetones |
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1 ohm cathode resistor
Started by AmberB |
42 Replies
17760 Views |
March 01, 2022, 11:00:37 am by pdf64 |
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AC15 Volume Issues
Started by ebulakowski |
13 Replies
6994 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
8996 Views |
February 28, 2022, 09:31:25 pm by liddokun |
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24 Replies
9522 Views |
February 28, 2022, 05:13:14 pm by 72Blazer |
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LM master volume question
Started by Esquirefreak |
5 Replies
5227 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
6485 Views |
February 28, 2022, 05:13:11 am by Bigjoedo |
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UberGain PowerSupply
Started by MiniVanMan |
3 Replies
4865 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
7726 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
7480 Views |
February 27, 2022, 07:14:31 am by pbman1953 |
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12 Replies
6754 Views |
February 26, 2022, 07:43:33 pm by sluckey |
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Japanese Switches
Started by jy67 |
1 Replies
4453 Views |
February 26, 2022, 02:06:54 pm by mresistor |
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30 Replies
18085 Views |
February 26, 2022, 10:52:53 am by sluckey |
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5 Replies
5691 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
11837 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
7630 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
8820 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
4604 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
6764 Views |
February 24, 2022, 09:51:20 am by smackoj |
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Mini-Bassman question
Started by bmccowan |
7 Replies
5139 Views |
February 23, 2022, 07:10:50 pm by bmccowan |
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Show us your breadboard!
Started by uki |
10 Replies
7398 Views |
February 23, 2022, 07:01:00 am by uki |
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6 Replies
5705 Views |
February 23, 2022, 03:01:28 am by Latole |
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Merit A2904 OT help
Started by munkeyboy |
9 Replies
7174 Views |
February 22, 2022, 05:24:51 pm by frankenxtein |
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9 Replies
5683 Views |
February 22, 2022, 04:50:56 pm by Colas LeGrippa |
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2 Replies
4250 Views |
February 22, 2022, 09:46:21 am by acheld |
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pot value question
Started by pbman1953 |
49 Replies
15542 Views |
February 22, 2022, 06:25:02 am by pbman1953 |
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Bias setting for 5F6A
Started by Johnnydoright |
10 Replies
5912 Views |
February 22, 2022, 12:33:49 am by PRR |
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Vactrol Questions
Started by skeprico |
3 Replies
4411 Views |
February 21, 2022, 05:34:15 pm by skeprico |
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Dumont tube brand ??
Started by kagliostro |
22 Replies
11031 Views |
February 21, 2022, 01:33:12 pm by sluckey |
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38 Replies
15034 Views |
February 21, 2022, 12:38:21 pm by PRR |
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7 Replies
5212 Views |
February 20, 2022, 06:48:34 pm by Hoodnight |
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4 Replies
5345 Views |
February 20, 2022, 05:44:01 pm by timmyjoe |
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1958 Fender Basman Restoration
Started by Garrett335 |
12 Replies
7635 Views |
February 20, 2022, 03:00:36 pm by PRR |
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EL-34 screen grid resistors
Started by AmberB |
5 Replies
7765 Views |
February 20, 2022, 02:43:27 pm by HotBluePlates |
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55 Replies
18224 Views |
February 20, 2022, 02:36:09 pm by Latole |
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14 Replies
7415 Views |
February 20, 2022, 11:17:10 am by Erik Aa |
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