Welcome To the Hoffman Amplifiers Forum
July 25, 2026, 05:37:17 am
Welcome To the Hoffman Amplifiers ForumJuly 25, 2026, 05:37:17 am | ||
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AC15 clone cathode resistor question
Started by Big_Mike |
9 Replies
3633 Views |
January 12, 2026, 03:32:16 amby Merlin |
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5 Replies
2921 Views |
January 11, 2026, 02:43:28 pm by Lectroid |
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Changing tone stack sanity check
Started by uki |
4 Replies
2642 Views |
January 10, 2026, 01:55:09 pm by SEL49 |
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5 Replies
3427 Views |
January 09, 2026, 08:28:43 pm by glass54 |
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Dark half-power Hoffman AC30
Started by MORE_Guitar_Solos |
23 Replies
7101 Views |
January 08, 2026, 10:57:44 pm by Big_Mike |
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Blues Jr. Rectifier Diode Question.
Started by Thisismyname |
5 Replies
2976 Views |
January 08, 2026, 11:37:40 am by acheld |
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2 Replies
2413 Views |
January 06, 2026, 05:55:23 pm by whoops |
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Benson Monarch Reverb tone switch
Started by Diverted |
2 Replies
2322 Views |
January 06, 2026, 04:39:21 pm by Diverted |
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8 Replies
3611 Views |
January 06, 2026, 12:56:45 pm by astronomicum |
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Dumb biasing question
Started by Lectroid |
8 Replies
3563 Views |
January 06, 2026, 11:03:10 am by shooter |
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1 Replies
2265 Views |
January 05, 2026, 12:58:55 pm by pdf64 |
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7 Replies
3745 Views |
January 04, 2026, 06:00:41 pm by roarshock |
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8 Replies
3388 Views |
January 04, 2026, 03:16:08 pm by wsscott |
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7 Replies
3043 Views |
January 03, 2026, 04:32:34 pm by jjasilli |
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4 Replies
2436 Views |
January 03, 2026, 03:30:24 pm by kagliostro |
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AC15 clone using Hoffman AC30 layout
Started by Big_Mike |
4 Replies
3475 Views |
January 03, 2026, 11:22:30 am by Big_Mike |
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15 Replies
3722 Views |
January 02, 2026, 07:20:07 pm by AlNewman |
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18watt stout in AO35 chassis
Started by dmp |
20 Replies
6790 Views |
January 02, 2026, 11:50:28 am by Lectroid |
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Filmosound 385 tone stack mod question
Started by markmalin |
14 Replies
4374 Views |
January 02, 2026, 09:33:57 am by markmalin |
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Vox AC30/6 Tremolo Woes c.1960
Started by misterc57 |
4 Replies
2790 Views |
January 02, 2026, 08:10:51 am by misterc57 |
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30 Replies
19762 Views |
January 01, 2026, 10:28:02 pm by Redwood |
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Fitting higher value PSU filter caps
Started by Yosser |
6 Replies
3094 Views |
January 01, 2026, 09:13:02 pm by HotBluePlates |
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Peavey Mace c.1977 120 Cycle Hum
Started by misterc57 |
0 Replies
2170 Views |
January 01, 2026, 01:21:06 pm by misterc57 |
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What to do with a spare 100k pot?
Started by Jennings |
5 Replies
2801 Views |
January 01, 2026, 07:26:21 am by Jennings |
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THE HOWLER
Started by TIMBO |
1 Replies
3078 Views |
December 30, 2025, 08:55:09 pm by TIMBO |
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Valco Early Model 1215 Voltages
Started by W5FH |
2 Replies
2401 Views |
December 30, 2025, 06:35:21 pm by W5FH |
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9 Replies
3087 Views |
December 30, 2025, 01:52:07 pm by astronomicum |
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117 Replies
29117 Views |
December 29, 2025, 07:05:57 pm by waldner |
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5 Replies
3319 Views |
December 28, 2025, 02:19:18 pm by HotBluePlates |
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AC15 combo chassis
Started by Big_Mike |
1 Replies
2372 Views |
December 27, 2025, 04:34:52 pm by bmccowan |
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5e9 Layout with 12DW7 Reverb
Started by J3ona1 |
18 Replies
3828 Views |
December 27, 2025, 12:38:20 pm by tubeswell |
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Tube Bias with a hum after effect
Started by pbman1953 |
1 Replies
2368 Views |
December 27, 2025, 11:50:28 am by tubeswell |
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PT safety margin?
Started by Lectroid |
4 Replies
2795 Views |
December 25, 2025, 10:24:50 am by Lectroid |
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Pro Junior Hoffman kit
Started by RTL |
8 Replies
3256 Views |
December 24, 2025, 03:47:38 pm by RTL |
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8 Replies
3408 Views |
December 24, 2025, 01:39:26 pm by pbman1953 |
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Not your usual grounding question . . .
Started by acheld |
3 Replies
2477 Views |
December 23, 2025, 02:07:46 pm by acheld |
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Important grounding question
Started by chaf87 |
5 Replies
3582 Views |
December 23, 2025, 11:34:21 am by pdf64 |
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Very loud amp is now attenuated
Started by newguitarsmell |
7 Replies
2857 Views |
December 23, 2025, 03:28:00 am by Merlin |
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Weber Beam Blocker Install
Started by Thisismyname |
6 Replies
3082 Views |
December 21, 2025, 05:32:53 pm by Thisismyname |
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5879 Blues Bassman
Started by TIMBO |
22 Replies
6540 Views |
December 21, 2025, 04:37:57 pm by TIMBO |
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5 Replies
2842 Views |
December 20, 2025, 02:26:46 pm by mxrshiver |
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2 Replies
2318 Views |
December 20, 2025, 02:25:51 pm by AngryWalrus |
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4 Replies
3134 Views |
December 20, 2025, 09:07:01 am by pbman1953 |
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Input matching
Started by Lectroid |
3 Replies
2954 Views |
December 19, 2025, 10:35:02 am by Lectroid |
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8 Replies
3374 Views |
December 18, 2025, 11:10:01 pm by SEL49 |
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POTS IN BLUES JR
Started by BLUESMAN-2 |
4 Replies
3093 Views |
December 18, 2025, 12:24:30 am by BLUESMAN-2 |
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Bootstrapped gain stage questions
Started by hylaphone |
4 Replies
3362 Views |
December 17, 2025, 12:30:07 pm by hylaphone |
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Updated Tube Comparison Table
Started by HotBluePlates |
10 Replies
10926 Views |
December 17, 2025, 10:40:48 am by Lectroid |
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8 Replies
3739 Views |
December 16, 2025, 04:49:19 pm by burchyk |
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0 Replies
2441 Views |
December 16, 2025, 11:19:42 am by TubeAmpDegen |
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