Welcome To the Hoffman Amplifiers Forum
October 23, 2025, 04:20:16 pm
Welcome To the Hoffman Amplifiers ForumOctober 23, 2025, 04:20:16 pm | ||
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Bias transformer
Started by Stankfut |
8 Replies
5656 Views |
June 12, 2014, 09:12:33 pmby PRR |
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15 Replies
8715 Views |
June 12, 2014, 09:23:21 am by MacGwyn |
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5 Replies
2947 Views |
June 11, 2014, 08:08:54 pm by printer2 |
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Still really need some help
Started by hesamadman |
12 Replies
4158 Views |
June 10, 2014, 06:02:20 pm by hesamadman |
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Did a low wattage 5E3
Started by printer2 |
31 Replies
9246 Views |
June 10, 2014, 05:54:02 pm by printer2 |
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Low Wattage Fire fly type amps
Started by jojokeo |
5 Replies
3034 Views |
June 10, 2014, 04:26:46 pm by jojokeo |
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Is this switch wired correct
Started by dude |
7 Replies
2817 Views |
June 10, 2014, 03:54:51 pm by HotBluePlates |
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5F8-A PT & Rectifier questions
Started by jly56 |
5 Replies
3665 Views |
June 10, 2014, 10:46:22 am by jly56 |
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2 Replies
2025 Views |
June 10, 2014, 10:35:07 am by Mats |
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40 Replies
13247 Views |
June 10, 2014, 04:44:46 am by Jack_Hester |
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Anatomy of an EL34
Started by Colas LeGrippa |
3 Replies
2757 Views |
June 09, 2014, 04:11:49 pm by Colas LeGrippa |
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2 Replies
2212 Views |
June 09, 2014, 02:23:52 am by kagliostro |
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Class A vs AB?
Started by shooter |
34 Replies
9698 Views |
June 08, 2014, 07:06:40 pm by shooter |
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Building a scratch build.
Started by silat |
3 Replies
2144 Views |
June 08, 2014, 10:02:30 am by silat |
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What a dreadfull hum - Hoffman AB763
Started by riftamps |
14 Replies
4684 Views |
June 07, 2014, 11:29:42 pm by HotBluePlates |
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4 Replies
2591 Views |
June 06, 2014, 04:07:38 pm by dude |
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7 Replies
3084 Views |
June 05, 2014, 09:59:43 pm by PRR |
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Sag Resistor
Started by dude |
3 Replies
3546 Views |
June 05, 2014, 03:47:31 pm by Jack1962 |
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4 Replies
4664 Views |
June 05, 2014, 03:38:17 pm by Jack1962 |
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7 Replies
6761 Views |
June 05, 2014, 03:17:56 am by kagliostro |
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4 Replies
2421 Views |
June 04, 2014, 09:28:29 pm by printer2 |
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FARGEN amp schems needed
Started by Colas LeGrippa |
9 Replies
5040 Views |
June 04, 2014, 08:46:58 pm by Colas LeGrippa |
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175 Replies
47977 Views |
June 04, 2014, 03:29:28 pm by super&plexi |
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8 Replies
4746 Views |
June 04, 2014, 02:34:29 pm by kwm488 |
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Can't get sound out of my ODS-100-HRM
Started by Mike_J |
20 Replies
5301 Views |
June 03, 2014, 06:38:05 pm by Mike_J |
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All signs point to open PT primary (??!!!)
Started by BrianS |
20 Replies
5704 Views |
June 03, 2014, 11:21:46 am by BrianS |
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Adding a balanced line out to a tube amp
Started by Baguette |
13 Replies
11390 Views |
June 03, 2014, 07:22:06 am by labb |
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Advice on placement of wires
Started by dude |
19 Replies
6049 Views |
June 02, 2014, 03:17:52 pm by eleventeen |
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SE draws max current at idle???
Started by jeff |
10 Replies
4779 Views |
June 01, 2014, 11:56:04 pm by PRR |
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AA764 champ proper grounding scheme.
Started by goldstache |
26 Replies
8052 Views |
May 31, 2014, 06:53:05 am by goldstache |
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Issue to lower voltages on my new build
Started by MZANNETOS |
1 Replies
1967 Views |
May 30, 2014, 06:39:45 pm by HotBluePlates |
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Hammond 273BX PT question
Started by navdave |
12 Replies
4309 Views |
May 30, 2014, 05:34:42 pm by ernie_jr |
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Sunn Solarus solid state power supply
Started by navdave |
14 Replies
5447 Views |
May 30, 2014, 03:41:17 pm by navdave |
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25 Replies
11508 Views |
May 30, 2014, 10:41:17 am by MZANNETOS |
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power supply filtering question
Started by thermion |
3 Replies
3071 Views |
May 29, 2014, 12:09:39 pm by HotBluePlates |
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Good Morning Gut Shots
Started by TeslaRect5150 |
0 Replies
1810 Views |
May 29, 2014, 09:02:48 am by TeslaRect5150 |
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testing bias/lightbulb limiter
Started by jeff |
2 Replies
1949 Views |
May 29, 2014, 03:32:30 am by stratele52 |
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one two testing REDPLATE pics
Started by Colas LeGrippa |
2 Replies
2618 Views |
May 28, 2014, 05:51:42 pm by Colas LeGrippa |
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LOUD hum, with master volume turned up
Started by Gainzilla |
21 Replies
13228 Views |
May 28, 2014, 03:44:10 pm by HotBluePlates |
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High headroom and overdrive in the same amp
Started by Leevi |
9 Replies
3927 Views |
May 28, 2014, 01:10:27 pm by Ritchie200 |
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low watt harp amp
Started by John |
6 Replies
3088 Views |
May 28, 2014, 12:51:45 pm by John |
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Preamp tube shields
Started by markvalluzzi |
2 Replies
2042 Views |
May 28, 2014, 06:47:58 am by EL34 |
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7 Replies
3137 Views |
May 27, 2014, 06:09:34 pm by Willabe |
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arcing between plate and heater
Started by Colas LeGrippa |
4 Replies
2940 Views |
May 27, 2014, 05:40:35 pm by Colas LeGrippa |
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Reverb Tanks
Started by TIMBO |
4 Replies
2540 Views |
May 26, 2014, 09:43:24 am by terminalgs |
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What do you think of this idea
Started by TIMBO |
13 Replies
4655 Views |
May 23, 2014, 08:29:02 pm by John |
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Can a 4-Lug Marshall Jack be Fixed?
Started by jjasilli |
3 Replies
2049 Views |
May 23, 2014, 09:21:50 am by jjasilli |
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8 Replies
3542 Views |
May 23, 2014, 08:06:30 am by Jack1962 |
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Vox Reverb Unit question
Started by kagliostro |
4 Replies
1958 Views |
May 22, 2014, 09:41:45 am by kagliostro |
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200 volt B+ drop!?
Started by navdave |
29 Replies
8439 Views |
May 22, 2014, 02:53:02 am by stratele52 |
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