Welcome To the Hoffman Amplifiers Forum
October 23, 2025, 05:07:40 pm
Welcome To the Hoffman Amplifiers ForumOctober 23, 2025, 05:07:40 pm | ||
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| SEL49 and 67 Guests are viewing this board. | ||||
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Isolation jacks
Started by shooter |
9 Replies
4122 Views |
October 28, 2014, 12:08:59 pmby shooter |
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Bad Cat Hot Cat 15 Schematic
Started by bnwitt |
11 Replies
13854 Views |
October 28, 2014, 10:33:23 am by bnwitt |
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Dual Single Ended Output
Started by hesamadman |
48 Replies
21940 Views |
October 28, 2014, 10:11:36 am by HotBluePlates |
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11 Replies
4425 Views |
October 28, 2014, 08:33:29 am by kagliostro |
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Little losses on 5 f1 negative feedback
Started by john_t |
8 Replies
3001 Views |
October 28, 2014, 07:48:20 am by EL34 |
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5 Replies
3606 Views |
October 28, 2014, 01:57:39 am by kagliostro |
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6 Replies
3053 Views |
October 27, 2014, 07:20:26 pm by Mike_J |
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alternative ^V^
Started by DummyLoad |
5 Replies
3771 Views |
October 27, 2014, 02:26:26 am by kagliostro |
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ECL 86 ?
Started by Toxophilite |
8 Replies
4833 Views |
October 26, 2014, 02:43:54 am by TIMBO |
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6 Replies
3052 Views |
October 25, 2014, 01:31:32 pm by blues man |
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Quick question regarding my 2204
Started by hesamadman |
7 Replies
3183 Views |
October 25, 2014, 09:57:38 am by shooter |
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4 Replies
2490 Views |
October 24, 2014, 04:33:56 pm by jjasilli |
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34 Replies
10510 Views |
October 24, 2014, 11:16:24 am by Mike_J |
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Cap Analyzer 88A ESR/DCR Meter
Started by TubeGeek |
7 Replies
3620 Views |
October 24, 2014, 09:19:46 am by TubeGeek |
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21 Replies
6339 Views |
October 23, 2014, 10:58:12 pm by PRR |
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Component Tolerances
Started by TIMBO |
5 Replies
2730 Views |
October 23, 2014, 06:35:20 pm by tubeswell |
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13 Replies
4707 Views |
October 22, 2014, 05:33:11 pm by HotBluePlates |
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44 Replies
12288 Views |
October 22, 2014, 02:42:21 pm by guntherbuffalo |
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2 Replies
1936 Views |
October 22, 2014, 07:46:47 am by tubenit |
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hum on stand-by
Started by Leevi |
35 Replies
8846 Views |
October 21, 2014, 02:07:41 pm by Leevi |
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ELECTRO-HARMONIX B9 ORGAN MACHINE
Started by EL34 |
0 Replies
1842 Views |
October 21, 2014, 09:07:05 am by EL34 |
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Common / Ground connection to chassis
Started by tompagan123 |
9 Replies
6191 Views |
October 20, 2014, 06:34:43 pm by Mike_J |
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4 Replies
2762 Views |
October 20, 2014, 04:46:30 pm by jojokeo |
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I'm sure this will be a stupid question.
Started by Rp3703 |
16 Replies
5061 Views |
October 20, 2014, 08:52:26 am by jjasilli |
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0 Replies
1798 Views |
October 19, 2014, 01:01:44 pm by frank57 |
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0 Replies
1786 Views |
October 19, 2014, 07:00:05 am by EL34 |
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Hammond Amp Conversion
Started by TIMBO |
0 Replies
2200 Views |
October 19, 2014, 01:39:36 am by TIMBO |
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Has anyone built a Weber Maggie?
Started by Guitarzan |
13 Replies
6562 Views |
October 18, 2014, 11:37:27 am by Guitarzan |
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0 Replies
1740 Views |
October 18, 2014, 08:32:21 am by EL34 |
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Grid stopper question
Started by g-man |
22 Replies
8256 Views |
October 17, 2014, 07:40:37 pm by HotBluePlates |
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Noisy Start Up
Started by Blind Lemon |
6 Replies
2870 Views |
October 16, 2014, 11:03:42 pm by jojokeo |
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Twin reverb 1974 reserection
Started by Auke Jolman |
27 Replies
8472 Views |
October 16, 2014, 03:29:10 pm by Auke Jolman |
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deluxe reverb build hum
Started by rutledj |
9 Replies
3306 Views |
October 16, 2014, 02:45:09 pm by Willabe |
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IN4007 diodes shorted out
Started by TIMBO |
4 Replies
2298 Views |
October 16, 2014, 01:56:42 am by TIMBO |
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6 Replies
2825 Views |
October 16, 2014, 01:39:30 am by kagliostro |
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Pre amp/ amp
Started by jeff |
14 Replies
4364 Views |
October 16, 2014, 12:27:47 am by jeff |
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epiphone valve jr
Started by moondog2u |
8 Replies
3565 Views |
October 15, 2014, 09:22:07 pm by Blind Lemon |
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Stereo tube amp
Started by Leevi |
5 Replies
2361 Views |
October 15, 2014, 07:56:29 pm by shooter |
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tip request! handy size bias resistors
Started by bakerlite |
2 Replies
2052 Views |
October 14, 2014, 01:22:33 pm by eleventeen |
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Rectifying 2 uneven HT
Started by guntherbuffalo |
10 Replies
3641 Views |
October 14, 2014, 10:16:53 am by guntherbuffalo |
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PCB repairs
Started by jim |
10 Replies
3539 Views |
October 14, 2014, 05:41:15 am by G._Hoffman |
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Hoffman Plexi 50 questions
Started by circuitcrafter |
16 Replies
5089 Views |
October 13, 2014, 10:41:03 pm by circuitcrafter |
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5B4 Circuit build. Resistor question.
Started by olgoat |
9 Replies
3236 Views |
October 13, 2014, 09:27:25 pm by olgoat |
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good clean fun...
Started by DummyLoad |
7 Replies
3680 Views |
October 13, 2014, 05:10:27 pm by kagliostro |
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170 Replies
50468 Views |
October 13, 2014, 07:26:54 am by Voxbox |
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Problems with a Pro
Started by Blind Lemon |
23 Replies
6200 Views |
October 11, 2014, 09:32:50 pm by Platefire |
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el84 red screening? NOT red plating(spiral)
Started by jeff |
12 Replies
5099 Views |
October 11, 2014, 08:39:19 pm by jeff |
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marshall 2203 800v on B+
Started by jcm-jmp |
9 Replies
5667 Views |
October 11, 2014, 05:19:05 pm by jcm-jmp |
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Alamo Jet Reverb 2564 (and Trem)
Started by Blind Lemon |
4 Replies
3855 Views |
October 10, 2014, 01:56:58 pm by Blind Lemon |
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0 Replies
1695 Views |
October 10, 2014, 11:46:00 am by EL34 |
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