Welcome To the Hoffman Amplifiers Forum
July 14, 2026, 04:33:55 pm
Welcome To the Hoffman Amplifiers ForumJuly 14, 2026, 04:33:55 pm | ||
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Question RE: NFB tap
Started by 12AX7 |
13 Replies
9630 Views |
January 09, 2017, 12:31:36 pmby PRR |
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Multi amp switcher
Started by Ritchie200 |
12 Replies
9698 Views |
January 09, 2017, 10:18:30 am by Willabe |
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Has anyone built a Friedman Dirty Shirley?
Started by Mark |
1 Replies
10948 Views |
January 09, 2017, 09:40:23 am by darkbluemurder |
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59 Replies
26521 Views |
January 08, 2017, 04:45:07 pm by shooter |
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2 Replies
4855 Views |
January 08, 2017, 02:58:56 pm by jaster55 |
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10 Replies
5345 Views |
January 07, 2017, 07:57:18 pm by silat |
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26 Replies
20604 Views |
January 07, 2017, 12:45:15 pm by marcus262 |
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Great service
Started by ernie_jr |
2 Replies
4386 Views |
January 07, 2017, 07:29:16 am by kagliostro |
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Blown Fuse Troubleshooting
Started by Ambugaton |
31 Replies
12159 Views |
January 06, 2017, 10:27:43 pm by Ritchie200 |
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Rivera Jake Studio Combo 55 watt amp
Started by punkykatt |
0 Replies
4350 Views |
January 06, 2017, 07:52:01 pm by punkykatt |
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19 Replies
7969 Views |
January 06, 2017, 07:50:31 pm by 12AX7 |
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cold bias gain stage?
Started by 12AX7 |
7 Replies
7884 Views |
January 06, 2017, 06:19:56 pm by 12AX7 |
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Deluxe AB763 bias
Started by Leevi |
3 Replies
4514 Views |
January 06, 2017, 02:16:36 pm by Leevi |
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D'Mars ODS build completed
Started by MakerDP |
21 Replies
15904 Views |
January 06, 2017, 12:08:42 pm by MakerDP |
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50 Replies
17313 Views |
January 06, 2017, 07:48:19 am by Vdelli |
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Building the Power Amp Section ONLY
Started by jonyoungyi |
6 Replies
4760 Views |
January 05, 2017, 04:22:09 pm by jonyoungyi |
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Princeton reverb 120v USA to 240v UK
Started by kaborex |
2 Replies
4842 Views |
January 05, 2017, 12:35:25 pm by PRR |
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tremolo circuit
Started by J Rindt |
9 Replies
7289 Views |
January 05, 2017, 11:14:02 am by kagliostro |
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2 Replies
4447 Views |
January 05, 2017, 08:55:29 am by kagliostro |
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Master Volume placement in a 5C5 Tweed Pro
Started by Josiah |
7 Replies
6248 Views |
January 04, 2017, 07:01:35 pm by Josiah |
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6Sj7 to 6SL7 or the other way
Started by Ed_Chambley |
2 Replies
7918 Views |
January 04, 2017, 03:28:58 pm by Ed_Chambley |
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What is the purpose of paralleled triodes?
Started by 12AX7 |
11 Replies
18819 Views |
January 04, 2017, 02:53:43 pm by Ed_Chambley |
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"Doug Circuits" VOX AC4 Ver.3
Started by Attila |
5 Replies
19746 Views |
January 04, 2017, 01:32:52 pm by purpletele |
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43 Replies
17865 Views |
January 03, 2017, 06:45:02 pm by warioblast |
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power amp and diff preamps
Started by Colas LeGrippa |
2 Replies
4193 Views |
January 03, 2017, 05:19:58 pm by Colas LeGrippa |
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Peavey MACE hiss problem
Started by Colas LeGrippa |
13 Replies
7540 Views |
January 03, 2017, 05:12:17 pm by Colas LeGrippa |
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cold bias gain stage
Started by 12AX7 |
11 Replies
6869 Views |
January 02, 2017, 05:19:25 pm by 12AX7 |
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8 Replies
5149 Views |
January 01, 2017, 08:48:46 pm by purpletele |
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isolate or ground a reverb send jack?
Started by G._Hoffman |
3 Replies
4034 Views |
January 01, 2017, 07:14:33 pm by G._Hoffman |
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Bias setting problem
Started by Leevi |
24 Replies
9829 Views |
January 01, 2017, 06:52:36 pm by whoops |
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bias vs gain flatness
Started by PRR |
1 Replies
3798 Views |
January 01, 2017, 04:14:20 pm by PRR |
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Old Accordion Tube Amp
Started by drumslinger2000 |
21 Replies
7958 Views |
January 01, 2017, 10:06:22 am by drumslinger2000 |
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Biasing questions
Started by 12AX7 |
9 Replies
5587 Views |
December 31, 2016, 11:43:59 pm by PRR |
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9 Replies
5955 Views |
December 31, 2016, 06:13:42 pm by guitarsan221 |
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93 Replies
27504 Views |
December 31, 2016, 02:50:02 pm by Jaymz77 |
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High gain preamp help
Started by dennyg |
6 Replies
5117 Views |
December 31, 2016, 02:41:52 pm by PRR |
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McIntosh MC250
Started by p2pAmps |
15 Replies
11251 Views |
December 31, 2016, 10:12:46 am by p2pAmps |
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Erratic Voltage Readings
Started by jaster55 |
1 Replies
3698 Views |
December 30, 2016, 10:31:53 pm by sluckey |
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Revibe Build ala sluckey
Started by Blind Lemon |
30 Replies
10362 Views |
December 30, 2016, 07:18:48 pm by Blind Lemon |
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Conjunctive filter info please?
Started by jojokeo |
46 Replies
31527 Views |
December 30, 2016, 06:01:56 pm by BetterOffShred |
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4 Replies
6484 Views |
December 30, 2016, 02:35:15 pm by fiftynine |
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6 Replies
5390 Views |
December 30, 2016, 12:12:41 pm by 3choplex |
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15 Replies
7450 Views |
December 30, 2016, 11:12:05 am by hesamadman |
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Sag Resistor
Started by Ambugaton |
5 Replies
8480 Views |
December 29, 2016, 09:07:29 pm by eleventeen |
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4 Replies
4232 Views |
December 28, 2016, 10:07:46 pm by Planobilly |
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Do you think....
Started by 12AX7 |
5 Replies
5237 Views |
December 28, 2016, 12:47:57 am by whoops |
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6 Replies
6003 Views |
December 27, 2016, 04:18:39 pm by HotBluePlates |
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3 Replies
4276 Views |
December 27, 2016, 04:05:36 pm by tubenit |
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Sunn Model-T/200s Hybrid
Started by BetterOffShred |
20 Replies
11339 Views |
December 27, 2016, 12:11:31 pm by BetterOffShred |
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smoking amp on standby
Started by jim |
13 Replies
6580 Views |
December 27, 2016, 12:06:32 pm by jim |
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