Welcome To the Hoffman Amplifiers Forum
October 23, 2025, 12:38:13 pm
Welcome To the Hoffman Amplifiers ForumOctober 23, 2025, 12:38:13 pm | ||
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5F2A in Champ chassis
Started by jly56 |
4 Replies
2951 Views |
May 15, 2015, 11:12:11 amby jly56 |
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6 Replies
3290 Views |
May 15, 2015, 10:13:21 am by markmalin |
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Rectifier Noise
Started by hesamadman |
6 Replies
3068 Views |
May 15, 2015, 04:53:42 am by hesamadman |
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12 Replies
4983 Views |
May 15, 2015, 04:03:02 am by VMS |
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1K 25 WATT resistor
Started by Mook |
7 Replies
3914 Views |
May 14, 2015, 06:09:44 pm by 2deaf |
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2 Replies
2236 Views |
May 14, 2015, 02:24:32 pm by MakerDP |
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0 Replies
1875 Views |
May 14, 2015, 01:21:03 pm by markmalin |
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PT Current & Votage Calculation
Started by jojokeo |
12 Replies
4221 Views |
May 14, 2015, 01:18:53 am by PRR |
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Wire Voltage Rating
Started by ncusack |
2 Replies
2739 Views |
May 13, 2015, 09:39:00 pm by PRR |
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Transformer Issue
Started by basschops1528 |
15 Replies
5321 Views |
May 13, 2015, 07:49:26 am by basschops1528 |
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Blues Jr lives.
Started by jim |
8 Replies
5915 Views |
May 12, 2015, 10:00:08 am by DummyLoad |
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6L6 in Vibro Champ ?
Started by dude |
29 Replies
15377 Views |
May 12, 2015, 07:42:11 am by jojokeo |
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Amp pots and master volume
Started by basschops1528 |
7 Replies
3280 Views |
May 12, 2015, 04:50:57 am by sluckey |
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5F6A Complete - now what mods?
Started by waldner |
24 Replies
7971 Views |
May 11, 2015, 10:46:15 pm by sluckey |
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5E3 Pre PI Master Volume
Started by waldner |
14 Replies
7684 Views |
May 11, 2015, 02:06:50 pm by kagliostro |
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ground lift switch
Started by Toxophilite |
18 Replies
6255 Views |
May 11, 2015, 08:28:02 am by kagliostro |
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Too much treble and bass
Started by dude |
24 Replies
7381 Views |
May 10, 2015, 07:42:42 pm by dude |
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Gibson GA40 Les Paul - Weak Tremolo
Started by kagliostro |
3 Replies
3742 Views |
May 10, 2015, 04:29:46 pm by kagliostro |
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0 Replies
1869 Views |
May 10, 2015, 02:05:20 pm by hesamadman |
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6 Replies
3314 Views |
May 10, 2015, 08:05:25 am by Champ_49 |
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Doug -- wiring diagram of old transformer?
Started by Mook |
3 Replies
2359 Views |
May 09, 2015, 01:26:15 pm by EL34 |
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Leaking .02 cap ?
Started by dude |
3 Replies
2330 Views |
May 08, 2015, 05:59:24 pm by shooter |
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Old Power Tubes
Started by TIMBO |
40 Replies
9686 Views |
May 08, 2015, 03:10:24 am by TIMBO |
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Weak tremolo in Vibro Champ
Started by dude |
5 Replies
3140 Views |
May 07, 2015, 04:05:35 pm by sluckey |
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James tone stack wiring
Started by ncusack |
4 Replies
3680 Views |
May 07, 2015, 01:57:27 pm by xm52 |
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Ab763 reverb circuit in separate mini chassis
Started by Toxophilite « 1 2 » |
73 Replies
13963 Views |
May 07, 2015, 02:48:30 am by Toxophilite |
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Laney AOR 50 output transformer
Started by navdave |
4 Replies
4080 Views |
May 06, 2015, 09:02:05 pm by Willabe |
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Chassis source?
Started by markmalin |
9 Replies
3128 Views |
May 06, 2015, 12:13:41 pm by markmalin |
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7 Replies
4244 Views |
May 05, 2015, 11:19:22 pm by HotBluePlates |
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PP OT question
Started by dude |
8 Replies
3056 Views |
May 05, 2015, 10:27:49 pm by HotBluePlates |
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Tremelo footswitch pop
Started by Toxophilite |
0 Replies
1730 Views |
May 05, 2015, 10:09:03 pm by Toxophilite |
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Help with volume pot
Started by goldstache |
15 Replies
3808 Views |
May 05, 2015, 09:57:34 pm by goldstache |
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5 Replies
2440 Views |
May 05, 2015, 07:33:09 pm by tubeswell |
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Another PA Amp
Started by TIMBO |
15 Replies
5095 Views |
May 05, 2015, 01:53:10 pm by TIMBO |
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4 Replies
1957 Views |
May 05, 2015, 08:54:47 am by 2deaf |
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Keys to a quiet amp
Started by hesamadman |
6 Replies
2941 Views |
May 05, 2015, 12:29:37 am by Champ_49 |
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Heater wiring wire question.
Started by Champ_49 |
28 Replies
12041 Views |
May 05, 2015, 12:26:15 am by Champ_49 |
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Single end OT question
Started by dude |
14 Replies
3894 Views |
May 04, 2015, 08:13:17 pm by PRR |
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Strange Cathode Voltage Reading
Started by ChubeRules |
4 Replies
2224 Views |
May 04, 2015, 03:14:45 pm by ChubeRules |
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23 Replies
6228 Views |
May 04, 2015, 11:54:42 am by Willabe |
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heavy buss wire - can it be too heavy?
Started by bakerlite |
8 Replies
4054 Views |
May 03, 2015, 07:37:08 pm by labb |
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6 Replies
2585 Views |
May 03, 2015, 10:36:13 am by kagliostro |
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Has the 5879 an octal correspondent ?
Started by kagliostro |
1 Replies
1924 Views |
May 03, 2015, 08:08:29 am by VMS |
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5 Replies
2667 Views |
May 03, 2015, 07:54:13 am by kagliostro |
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Floating Paraphase Negative Feedback
Started by navdave |
8 Replies
5851 Views |
May 02, 2015, 03:31:35 pm by tubeswell |
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Bias circuit addition
Started by navdave |
4 Replies
2345 Views |
May 02, 2015, 10:22:59 am by ernie_jr |
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Princeton reverb / deluxe reverb clone
Started by Shack |
4 Replies
2895 Views |
May 01, 2015, 06:48:41 pm by HotBluePlates |
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25 Replies
5966 Views |
May 01, 2015, 06:41:27 pm by HotBluePlates |
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Hot chassis - normal?
Started by markmalin |
6 Replies
2742 Views |
May 01, 2015, 02:32:44 pm by sluckey |
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$90,000 vintage amp
Started by dude |
6 Replies
3857 Views |
May 01, 2015, 11:07:24 am by dude |
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