Welcome To the Hoffman Amplifiers Forum
August 29, 2026, 07:34:37 pm
Welcome To the Hoffman Amplifiers ForumAugust 29, 2026, 07:34:37 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 74 Guests are viewing this board. | ||||
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2 Replies
4019 Views |
March 14, 2023, 04:00:02 pmby mresistor |
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output transfo kaputt
Started by Tirol29 |
18 Replies
8388 Views |
March 14, 2023, 12:49:08 pm by Tirol29 |
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Stoopid Question re PT datasheet
Started by shaun |
10 Replies
6433 Views |
March 13, 2023, 11:53:57 pm by tubeswell |
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FUZZNIKATOR what is it???
Started by TIMBO |
25 Replies
11603 Views |
March 13, 2023, 01:28:34 am by TIMBO |
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FET input stage?
Started by slowferrari |
1 Replies
4715 Views |
March 12, 2023, 01:39:37 pm by Keppy |
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7 Replies
5722 Views |
March 11, 2023, 05:45:47 pm by Pinball |
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1974 Super Reverb - Channel Bleed
Started by 410_Fanatic |
17 Replies
8949 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
9665 Views |
March 11, 2023, 09:39:18 am by JPK |
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9 Replies
6213 Views |
March 11, 2023, 04:32:22 am by Joel |
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4 Replies
4453 Views |
March 11, 2023, 01:27:28 am by kagliostro |
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Bogus 12ax7 tubes.
Started by AlNewman |
20 Replies
10934 Views |
March 10, 2023, 08:44:47 pm by HotBluePlates |
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Alembic F-2B info
Started by PRR |
6 Replies
7274 Views |
March 10, 2023, 06:50:47 pm by AlNewman |
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5R4 rectifiers
Started by Brownie |
9 Replies
6619 Views |
March 10, 2023, 05:49:33 pm by tubeswell |
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JTM45 bias
Started by g-man |
2 Replies
5169 Views |
March 10, 2023, 01:32:25 pm by g-man |
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6 Replies
8456 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
6048 Views |
March 09, 2023, 11:16:48 am by bmccowan |
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Davis 106 Amps
Started by plexi50 |
7 Replies
8933 Views |
March 08, 2023, 10:07:50 am by Lectroid |
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MojoTone Studio One Watt
Started by GAStan |
10 Replies
8263 Views |
March 08, 2023, 09:17:34 am by GAStan |
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18 Replies
7737 Views |
March 08, 2023, 06:56:11 am by shooter |
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3 Replies
5618 Views |
March 07, 2023, 11:10:19 pm by PRR |
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Low vac on filaments
Started by dude |
3 Replies
4493 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
9219 Views |
March 07, 2023, 06:04:44 pm by AlNewman |
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EF86 GAIN FACTOR
Started by Jonas |
10 Replies
8349 Views |
March 06, 2023, 07:04:10 pm by HotBluePlates |
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AB763 brass plate?
Started by joesatch |
12 Replies
8379 Views |
March 06, 2023, 05:51:19 pm by pdf64 |
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0 Replies
5134 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
7623 Views |
March 06, 2023, 12:00:50 pm by Jalmeida |
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Magnatone 280 on the Bench
Started by JustMike |
12 Replies
6874 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
6280 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
10677 Views |
March 04, 2023, 08:39:31 pm by HotBluePlates |
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0 Replies
4190 Views |
March 04, 2023, 05:29:59 pm by astronomicum |
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Tweaking voltage dividers
Started by TenderTendon |
1 Replies
4151 Views |
March 03, 2023, 09:48:06 pm by sluckey |
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1974 Twin Reverb Transformer
Started by TenderTendon |
4 Replies
4242 Views |
March 03, 2023, 04:28:12 pm by TenderTendon |
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Fender Twin 135w - 120hz hum
Started by Garrett335 |
6 Replies
5329 Views |
March 03, 2023, 02:54:33 pm by sluckey |
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Start-up Surge
Started by shaun |
24 Replies
10694 Views |
March 03, 2023, 10:21:41 am by acheld |
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12 Replies
11625 Views |
March 03, 2023, 06:53:40 am by bmccowan |
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18 Replies
9973 Views |
March 02, 2023, 08:04:08 pm by dude |
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Rogers/Majestic 6R531
Started by AlNewman |
24 Replies
9395 Views |
March 02, 2023, 07:10:53 pm by AlNewman |
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Noisey tubes
Started by pbman1953 |
7 Replies
5028 Views |
March 02, 2023, 05:41:39 pm by scstill |
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Pentode - triode switch 6V6
Started by tubenit |
1 Replies
4937 Views |
March 02, 2023, 07:06:54 am by sluckey |
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A Basic Bias Question
Started by Lectroid |
18 Replies
8257 Views |
March 01, 2023, 10:20:25 am by Lectroid |
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2 Replies
4239 Views |
February 28, 2023, 05:23:55 pm by Jennings |
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Heater Winding/Center Tap Question
Started by davidb |
3 Replies
4708 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
5774 Views |
February 28, 2023, 02:15:46 pm by PRR |
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18 Replies
7893 Views |
February 28, 2023, 08:47:48 am by sluckey |
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5 Replies
4375 Views |
February 27, 2023, 08:05:19 pm by Lectroid |
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Fuse help identification needed
Started by joesatch |
9 Replies
6740 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
4369 Views |
February 27, 2023, 01:24:26 pm by sluckey |
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Simulating preamp questions
Started by fossilshark |
5 Replies
5747 Views |
February 26, 2023, 09:47:38 pm by fossilshark |
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5 Replies
5715 Views |
February 26, 2023, 06:59:07 pm by RadioComm |
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Minnesota auction
Started by bmccowan |
0 Replies
3655 Views |
February 26, 2023, 05:26:17 pm by bmccowan |
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