Welcome To the Hoffman Amplifiers Forum
December 08, 2025, 10:43:50 am
Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 10:43:50 am | ||
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7 Replies
2942 Views |
March 11, 2023, 05:45:47 pmby Pinball |
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1974 Super Reverb - Channel Bleed
Started by 410_Fanatic |
17 Replies
4758 Views |
March 11, 2023, 02:57:27 pm by 410_Fanatic |
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OT using multiple taps at same time
Started by JPK |
18 Replies
4980 Views |
March 11, 2023, 09:39:18 am by JPK |
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9 Replies
3665 Views |
March 11, 2023, 04:32:22 am by Joel |
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4 Replies
2329 Views |
March 11, 2023, 01:27:28 am by kagliostro |
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Bogus 12ax7 tubes.
Started by AlNewman |
20 Replies
6272 Views |
March 10, 2023, 08:44:47 pm by HotBluePlates |
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Alembic F-2B info
Started by PRR |
6 Replies
4100 Views |
March 10, 2023, 06:50:47 pm by AlNewman |
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5R4 rectifiers
Started by Brownie |
9 Replies
3865 Views |
March 10, 2023, 05:49:33 pm by tubeswell |
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JTM45 bias
Started by g-man |
2 Replies
2696 Views |
March 10, 2023, 01:32:25 pm by g-man |
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6 Replies
5042 Views |
March 09, 2023, 07:38:06 pm by AlNewman |
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Gibson Atlas amp head -- poor tone
Started by Coldhand75 |
9 Replies
3569 Views |
March 09, 2023, 11:16:48 am by bmccowan |
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Davis 106 Amps
Started by plexi50 |
7 Replies
6630 Views |
March 08, 2023, 10:07:50 am by Lectroid |
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MojoTone Studio One Watt
Started by GAStan |
10 Replies
4806 Views |
March 08, 2023, 09:17:34 am by GAStan |
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18 Replies
4713 Views |
March 08, 2023, 06:56:11 am by shooter |
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3 Replies
3074 Views |
March 07, 2023, 11:10:19 pm by PRR |
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Low vac on filaments
Started by dude |
3 Replies
2220 Views |
March 07, 2023, 08:07:10 pm by dude |
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How to measure bias in a Blues Jr?
Started by JustMike |
12 Replies
6055 Views |
March 07, 2023, 06:04:44 pm by AlNewman |
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EF86 GAIN FACTOR
Started by Jonas |
10 Replies
5110 Views |
March 06, 2023, 07:04:10 pm by HotBluePlates |
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AB763 brass plate?
Started by joesatch |
12 Replies
4788 Views |
March 06, 2023, 05:51:19 pm by pdf64 |
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0 Replies
2798 Views |
March 06, 2023, 03:29:45 pm by astronomicum |
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A mod for a '65 Vox AC-10
Started by miserlou |
12 Replies
4502 Views |
March 06, 2023, 12:00:50 pm by Jalmeida |
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Magnatone 280 on the Bench
Started by JustMike |
12 Replies
3946 Views |
March 06, 2023, 11:10:48 am by JustMike |
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1964 Super Reverb NFB rotary switch
Started by Darkpr0 |
10 Replies
3563 Views |
March 05, 2023, 02:25:51 pm by Darkpr0 |
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Screen voltage higher than plate voltage?
Started by dude |
14 Replies
5264 Views |
March 04, 2023, 08:39:31 pm by HotBluePlates |
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0 Replies
2371 Views |
March 04, 2023, 05:29:59 pm by astronomicum |
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Tweaking voltage dividers
Started by TenderTendon |
1 Replies
2004 Views |
March 03, 2023, 09:48:06 pm by sluckey |
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1974 Twin Reverb Transformer
Started by TenderTendon |
4 Replies
2070 Views |
March 03, 2023, 04:28:12 pm by TenderTendon |
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Fender Twin 135w - 120hz hum
Started by Garrett335 |
6 Replies
2861 Views |
March 03, 2023, 02:54:33 pm by sluckey |
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Start-up Surge
Started by shaun |
24 Replies
5926 Views |
March 03, 2023, 10:21:41 am by acheld |
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12 Replies
8518 Views |
March 03, 2023, 06:53:40 am by bmccowan |
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18 Replies
5558 Views |
March 02, 2023, 08:04:08 pm by dude |
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Rogers/Majestic 6R531
Started by AlNewman |
24 Replies
5408 Views |
March 02, 2023, 07:10:53 pm by AlNewman |
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Noisey tubes
Started by pbman1953 |
7 Replies
2801 Views |
March 02, 2023, 05:41:39 pm by scstill |
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Pentode - triode switch 6V6
Started by tubenit |
1 Replies
2303 Views |
March 02, 2023, 07:06:54 am by sluckey |
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A Basic Bias Question
Started by Lectroid |
18 Replies
4542 Views |
March 01, 2023, 10:20:25 am by Lectroid |
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2 Replies
2146 Views |
February 28, 2023, 05:23:55 pm by Jennings |
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Heater Winding/Center Tap Question
Started by davidb |
3 Replies
2522 Views |
February 28, 2023, 03:06:57 pm by HotBluePlates |
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How to get 12v to my 12ax7?
Started by jordan86 |
6 Replies
3437 Views |
February 28, 2023, 02:15:46 pm by PRR |
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18 Replies
4552 Views |
February 28, 2023, 08:47:48 am by sluckey |
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5 Replies
2369 Views |
February 27, 2023, 08:05:19 pm by Lectroid |
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Fuse help identification needed
Started by joesatch |
9 Replies
3583 Views |
February 27, 2023, 03:00:39 pm by joesatch |
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Sluckey "Trem-O-Nator Vactrol Question
Started by W5FH |
3 Replies
2392 Views |
February 27, 2023, 01:24:26 pm by sluckey |
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Simulating preamp questions
Started by fossilshark |
5 Replies
2854 Views |
February 26, 2023, 09:47:38 pm by fossilshark |
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5 Replies
2937 Views |
February 26, 2023, 06:59:07 pm by RadioComm |
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Minnesota auction
Started by bmccowan |
0 Replies
1853 Views |
February 26, 2023, 05:26:17 pm by bmccowan |
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26 Replies
8563 Views |
February 26, 2023, 01:35:14 pm by PRR |
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relay assistance
Started by joesatch |
24 Replies
5106 Views |
February 26, 2023, 10:12:52 am by acheld |
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74 Replies
13629 Views |
February 25, 2023, 09:49:45 pm by Blooze |
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12at7 tube selection
Started by pbman1953 |
7 Replies
2597 Views |
February 25, 2023, 05:54:58 pm by HotBluePlates |
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Schematic Finalization
Started by fossilshark |
38 Replies
7709 Views |
February 25, 2023, 11:35:01 am by fossilshark |
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