Welcome To the Hoffman Amplifiers Forum
March 11, 2026, 11:18:58 am
Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 11:18:58 am | ||
| Subject / Started by | Replies / Views | Last post  |
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| 0 Members and 42 Guests are viewing this board. | ||||
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14 Replies
5574 Views |
September 29, 2023, 01:21:33 amby Bieworm |
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53 Replies
12745 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
9386 Views |
September 28, 2023, 11:31:34 pm by zozoe |
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7 Replies
4125 Views |
September 28, 2023, 03:56:38 pm by HotBluePlates |
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Audio Transformer reference
Started by acheld |
29 Replies
7541 Views |
September 28, 2023, 03:42:34 pm by HotBluePlates |
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Hammond AO-35 conversion
Started by joesatch |
7 Replies
4907 Views |
September 28, 2023, 11:09:59 am by bmccowan |
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5E3 uneven frequency response
Started by Arry |
17 Replies
5840 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
2969 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
9157 Views |
September 27, 2023, 07:32:58 pm by AlNewman |
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Unusual capacitor values
Started by jada3909 |
3 Replies
2685 Views |
September 27, 2023, 06:21:31 pm by acheld |
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Princeton Reverb Transformer questions
Started by J3ona1 |
12 Replies
4921 Views |
September 27, 2023, 08:50:27 am by Willabe |
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15 Replies
4665 Views |
September 26, 2023, 10:39:12 pm by SoundmasterG |
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Heater Center Tap Question
Started by imgumby001 |
11 Replies
4139 Views |
September 26, 2023, 05:15:08 pm by passaloutre |
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9 Replies
5691 Views |
September 26, 2023, 01:06:59 pm by Jalmeida |
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7 Replies
4685 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
6874 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
4359 Views |
September 25, 2023, 12:21:55 pm by tubeswell |
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potentiometers that stay at noon?
Started by fossilshark |
1 Replies
2651 Views |
September 25, 2023, 09:24:13 am by sluckey |
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RCA 307 conversion
Started by AlNewman |
28 Replies
7973 Views |
September 25, 2023, 01:49:45 am by AlNewman |
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transformer identification help
Started by joesatch |
6 Replies
4083 Views |
September 24, 2023, 12:41:41 pm by HotBluePlates |
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NOS/Vintage tubes worth it??
Started by Jalmeida |
18 Replies
5986 Views |
September 24, 2023, 12:30:29 pm by HotBluePlates |
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1 Replies
3059 Views |
September 24, 2023, 11:03:40 am by HotBluePlates |
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6ak5 in place of EF86
Started by imgumby001 |
4 Replies
3665 Views |
September 24, 2023, 08:50:18 am by imgumby001 |
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OPT defective ?
Started by Colas LeGrippa |
9 Replies
4623 Views |
September 23, 2023, 01:57:32 pm by Platefire |
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Vox with Fender channels?
Started by roseblood11 |
3 Replies
3927 Views |
September 23, 2023, 07:17:07 am by dwinstonwood |
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Univox U102 Combo Cabinet Dimensions
Started by astronomicum |
5 Replies
3498 Views |
September 22, 2023, 09:28:11 pm by bmccowan |
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Bassman 50 grounding
Started by labb |
3 Replies
3089 Views |
September 22, 2023, 12:50:06 pm by PRR |
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Fender Bassman 50
Started by labb |
30 Replies
9701 Views |
September 21, 2023, 05:02:28 pm by shooter |
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5 Replies
3528 Views |
September 21, 2023, 01:29:22 pm by Williamblake |
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24 Replies
9502 Views |
September 21, 2023, 12:58:16 pm by stratomaster |
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51 Replies
14614 Views |
September 21, 2023, 05:41:33 am by Dave |
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9 Replies
4641 Views |
September 21, 2023, 12:47:15 am by kagliostro |
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Effects loop build question
Started by audiosalvage |
1 Replies
3052 Views |
September 20, 2023, 09:49:33 pm by PRR |
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Speaker jack speaker loads
Started by Jalmeida |
2 Replies
3035 Views |
September 20, 2023, 12:33:56 pm by PRR |
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Variac use in new build startup
Started by dude |
3 Replies
3723 Views |
September 19, 2023, 09:24:32 pm by bmccowan |
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National Dobro 400
Started by isaac_teller |
4 Replies
3687 Views |
September 19, 2023, 10:47:42 am by isaac_teller |
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Resistor placement
Started by Diverted |
8 Replies
3813 Views |
September 19, 2023, 10:29:58 am by Latole |
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Blues Jr frying preamp tubes
Started by mxrshiver |
5 Replies
3833 Views |
September 19, 2023, 06:09:10 am by pdf64 |
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Gibson GA-30 need help picking capacitors
Started by delray |
11 Replies
5648 Views |
September 18, 2023, 10:40:31 pm by Platefire |
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11 Replies
4722 Views |
September 18, 2023, 09:26:51 am by kagliostro |
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Changing value of potentiometer
Started by Mypalmurph |
22 Replies
6897 Views |
September 18, 2023, 02:55:27 am by Colas LeGrippa |
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9 Replies
4743 Views |
September 17, 2023, 09:45:38 pm by HotBluePlates |
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Bassman 5F6-A build
Started by Keyboy |
15 Replies
6015 Views |
September 17, 2023, 09:38:55 pm by PRR |
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Musicman 2100 RD Power Transformer
Started by plexi50 |
3 Replies
3370 Views |
September 17, 2023, 06:42:52 pm by plexi50 |
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6V6 tweed bassman advice
Started by Bieworm |
38 Replies
10218 Views |
September 17, 2023, 01:20:45 pm by Bieworm |
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New Build with KT-88's
Started by W5FH |
1 Replies
3087 Views |
September 17, 2023, 08:50:15 am by W5FH |
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Revibe Idea, 3ft reverb tank
Started by paulcblais |
2 Replies
3032 Views |
September 17, 2023, 06:17:21 am by Williamblake |
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Ohms mismatch or swap output trans
Started by Mypalmurph |
4 Replies
3539 Views |
September 17, 2023, 05:22:32 am by pdf64 |
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Hoffman_AB763_1 channel Completed
Started by RoadShow |
4 Replies
3927 Views |
September 16, 2023, 04:45:06 pm by mresistor |
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Resistors Making An Amp Quiet...
Started by sbeckett |
4 Replies
3786 Views |
September 16, 2023, 01:46:47 pm by scstill |
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