Welcome To the Hoffman Amplifiers Forum
January 23, 2026, 07:59:26 pm
Welcome To the Hoffman Amplifiers ForumJanuary 23, 2026, 07:59:26 pm | ||
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| Joel and 48 Guests are viewing this board. | ||||
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10 Replies
5813 Views |
October 09, 2023, 06:59:08 pmby PRR |
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202 Replies
52651 Views |
October 09, 2023, 04:45:26 pm by martiro7 |
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7 Replies
4296 Views |
October 09, 2023, 03:16:09 pm by filmdiary |
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Bassman 50 update
Started by labb |
1 Replies
2979 Views |
October 08, 2023, 06:31:19 am by bmccowan |
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CAE 3+ output stage assistance
Started by joesatch |
3 Replies
3057 Views |
October 08, 2023, 02:29:45 am by joesatch |
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1 Replies
5021 Views |
October 07, 2023, 05:42:37 pm by vibrolax |
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Layout Chassis Template Software
Started by Pollys13a |
5 Replies
3822 Views |
October 07, 2023, 11:43:34 am by Pollys13a |
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3 Replies
2877 Views |
October 07, 2023, 11:32:08 am by Platefire |
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4 Replies
2952 Views |
October 06, 2023, 05:58:44 pm by PRR |
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Layout of Vox AC50/2...
Started by Jalmeida |
4 Replies
3159 Views |
October 05, 2023, 08:40:27 pm by sluckey |
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thomas organ 6973 tube amplifier
Started by filamenthead |
2 Replies
3243 Views |
October 05, 2023, 10:53:50 am by 66Strat |
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Ab 763 power amp section input.
Started by tedsorvino1 |
4 Replies
2965 Views |
October 05, 2023, 08:58:11 am by tedsorvino1 |
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4 Replies
3030 Views |
October 04, 2023, 07:50:44 pm by sluckey |
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parallel triode question
Started by joesatch |
16 Replies
6044 Views |
October 04, 2023, 03:23:55 pm by kagliostro |
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AB 568 Super reverb....questions
Started by rafe |
5 Replies
3048 Views |
October 04, 2023, 01:24:20 pm by rafe |
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dual lite channel switching
Started by Mattjaco1 |
5 Replies
3358 Views |
October 03, 2023, 03:52:54 pm by sluckey |
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6 Replies
3952 Views |
October 03, 2023, 09:22:50 am by delray |
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Valve PA to guitar amp
Started by peacocksuit |
11 Replies
4167 Views |
October 03, 2023, 09:00:51 am by kagliostro |
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Just a reminder...
Started by tdvt |
3 Replies
2746 Views |
October 02, 2023, 09:22:04 pm by tdvt |
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Mod Electronics
Started by labb |
11 Replies
4372 Views |
October 02, 2023, 09:20:58 pm by tdvt |
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20 Replies
5906 Views |
October 02, 2023, 06:02:38 pm by pdf64 |
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Vox AC30/4 build finished…
Started by Jalmeida |
3 Replies
2986 Views |
October 02, 2023, 05:20:47 pm by Jalmeida |
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109 Replies
22122 Views |
October 02, 2023, 01:35:17 pm by tdvt |
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Raw pot in 5F4 super
Started by Keyboy |
11 Replies
3874 Views |
October 02, 2023, 07:41:21 am by DummyLoad |
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7 Replies
4513 Views |
October 01, 2023, 06:23:18 pm by AlNewman |
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10 Replies
4510 Views |
September 30, 2023, 05:18:10 am by Dave |
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Effects loop for SV20ish amp
Started by audiosalvage |
5 Replies
3544 Views |
September 29, 2023, 08:09:00 pm by audiosalvage |
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Does it exist a class D tube amp ?
Started by kagliostro |
18 Replies
6348 Views |
September 29, 2023, 03:10:41 pm by kagliostro |
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14 Replies
5173 Views |
September 29, 2023, 01:21:33 am by Bieworm |
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53 Replies
11731 Views |
September 29, 2023, 01:13:19 am by DummyLoad |
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How to measure tube cathode current?
Started by pbman1953 |
12 Replies
9056 Views |
September 28, 2023, 11:31:34 pm by zozoe |
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7 Replies
3851 Views |
September 28, 2023, 03:56:38 pm by HotBluePlates |
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Audio Transformer reference
Started by acheld |
29 Replies
6986 Views |
September 28, 2023, 03:42:34 pm by HotBluePlates |
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Hammond AO-35 conversion
Started by joesatch |
7 Replies
4571 Views |
September 28, 2023, 11:09:59 am by bmccowan |
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5E3 uneven frequency response
Started by Arry |
17 Replies
5381 Views |
September 28, 2023, 05:03:03 am by HotBluePlates |
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Gibson GA-20 RVT T-Filter Question
Started by Deric |
2 Replies
2744 Views |
September 27, 2023, 09:40:26 pm by Deric |
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Help biasing an amp, PP EL34
Started by starseeds |
30 Replies
8298 Views |
September 27, 2023, 07:32:58 pm by AlNewman |
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Unusual capacitor values
Started by jada3909 |
3 Replies
2488 Views |
September 27, 2023, 06:21:31 pm by acheld |
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Princeton Reverb Transformer questions
Started by J3ona1 |
12 Replies
4622 Views |
September 27, 2023, 08:50:27 am by Willabe |
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15 Replies
4309 Views |
September 26, 2023, 10:39:12 pm by SoundmasterG |
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Heater Center Tap Question
Started by imgumby001 |
11 Replies
3864 Views |
September 26, 2023, 05:15:08 pm by passaloutre |
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9 Replies
5279 Views |
September 26, 2023, 01:06:59 pm by Jalmeida |
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7 Replies
4314 Views |
September 26, 2023, 05:18:22 am by HotBluePlates |
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Getting old and how to deal it!
Started by Planobilly |
24 Replies
6425 Views |
September 25, 2023, 08:51:57 pm by Guy77 |
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Bias settings for common power tubes
Started by TIMBO |
11 Replies
4044 Views |
September 25, 2023, 12:21:55 pm by tubeswell |
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potentiometers that stay at noon?
Started by fossilshark |
1 Replies
2465 Views |
September 25, 2023, 09:24:13 am by sluckey |
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RCA 307 conversion
Started by AlNewman |
28 Replies
7452 Views |
September 25, 2023, 01:49:45 am by AlNewman |
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transformer identification help
Started by joesatch |
6 Replies
3759 Views |
September 24, 2023, 12:41:41 pm by HotBluePlates |
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NOS/Vintage tubes worth it??
Started by Jalmeida |
18 Replies
5580 Views |
September 24, 2023, 12:30:29 pm by HotBluePlates |
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1 Replies
2767 Views |
September 24, 2023, 11:03:40 am by HotBluePlates |
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