Welcome To the Hoffman Amplifiers ForumOctober 22, 2025, 02:48:54 pm | ||
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parallel triode question
Started by joesatch |
16 Replies
4999 Views |
![]() by kagliostro |
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AB 568 Super reverb....questions
Started by rafe |
5 Replies
2532 Views |
![]() by rafe |
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dual lite channel switching
Started by Mattjaco1 |
5 Replies
2788 Views |
![]() by sluckey |
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6 Replies
3246 Views |
![]() by delray |
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Valve PA to guitar amp
Started by peacocksuit |
11 Replies
3390 Views |
![]() by kagliostro |
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Just a reminder...
Started by tdvt |
3 Replies
2339 Views |
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Mod Electronics
Started by labb |
11 Replies
3746 Views |
![]() by tdvt |
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20 Replies
4803 Views |
![]() by pdf64 |
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Vox AC30/4 build finished…
Started by Jalmeida |
3 Replies
2614 Views |
![]() by Jalmeida |
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109 Replies
18104 Views |
![]() by tdvt |
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Raw pot in 5F4 super
Started by Keyboy |
11 Replies
3302 Views |
![]() by DummyLoad |
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7 Replies
3908 Views |
![]() by AlNewman |
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10 Replies
3760 Views |
![]() by Dave |
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Effects loop for SV20ish amp
Started by audiosalvage |
5 Replies
3027 Views |
![]() by audiosalvage |
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Does it exist a class D tube amp ?
Started by kagliostro |
18 Replies
5234 Views |
![]() by kagliostro |
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14 Replies
4259 Views |
![]() by Bieworm |
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53 Replies
9400 Views |
![]() by DummyLoad |
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How to measure tube cathode current?
Started by pbman1953 |
12 Replies
8225 Views |
![]() by zozoe |
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7 Replies
3223 Views |
![]() by HotBluePlates |
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Audio Transformer reference
Started by acheld |
29 Replies
5673 Views |
![]() by HotBluePlates |
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Hammond AO-35 conversion
Started by joesatch |
7 Replies
3778 Views |
![]() by bmccowan |
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5E3 uneven frequency response
Started by Arry |
17 Replies
4386 Views |
![]() by HotBluePlates |
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Gibson GA-20 RVT T-Filter Question
Started by Deric |
2 Replies
2356 Views |
![]() by Deric |
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Help biasing an amp, PP EL34
Started by starseeds |
30 Replies
6570 Views |
![]() by AlNewman |
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Unusual capacitor values
Started by jada3909 |
3 Replies
2119 Views |
![]() by acheld |
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Princeton Reverb Transformer questions
Started by J3ona1 |
12 Replies
3877 Views |
![]() by Willabe |
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15 Replies
3541 Views |
![]() by SoundmasterG |
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Heater Center Tap Question
Started by imgumby001 |
11 Replies
3248 Views |
![]() by passaloutre |
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9 Replies
4349 Views |
![]() by Jalmeida |
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7 Replies
3500 Views |
![]() by HotBluePlates |
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Getting old and how to deal it!
Started by Planobilly |
24 Replies
5239 Views |
![]() by Guy77 |
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Bias settings for common power tubes
Started by TIMBO |
11 Replies
3304 Views |
![]() by tubeswell |
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potentiometers that stay at noon?
Started by fossilshark |
1 Replies
2103 Views |
![]() by sluckey |
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RCA 307 conversion
Started by AlNewman |
28 Replies
6100 Views |
![]() by AlNewman |
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transformer identification help
Started by joesatch |
6 Replies
3070 Views |
![]() by HotBluePlates |
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NOS/Vintage tubes worth it??
Started by Jalmeida |
18 Replies
4567 Views |
![]() by HotBluePlates |
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1 Replies
2212 Views |
![]() by HotBluePlates |
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6ak5 in place of EF86
Started by imgumby001 |
4 Replies
2830 Views |
![]() by imgumby001 |
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OPT defective ?
Started by Colas LeGrippa |
9 Replies
3501 Views |
![]() by Platefire |
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Vox with Fender channels?
Started by roseblood11 |
3 Replies
2832 Views |
![]() by dwinstonwood |
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Univox U102 Combo Cabinet Dimensions
Started by astronomicum |
5 Replies
2509 Views |
![]() by bmccowan |
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Bassman 50 grounding
Started by labb |
3 Replies
2248 Views |
![]() by PRR |
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Fender Bassman 50
Started by labb |
30 Replies
7303 Views |
![]() by shooter |
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5 Replies
2607 Views |
![]() by Williamblake |
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24 Replies
7636 Views |
![]() by stratomaster |
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51 Replies
10637 Views |
![]() by Dave |
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9 Replies
3374 Views |
![]() by kagliostro |
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Effects loop build question
Started by audiosalvage |
1 Replies
2196 Views |
![]() by PRR |
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Speaker jack speaker loads
Started by Jalmeida |
2 Replies
2185 Views |
![]() by PRR |
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Variac use in new build startup
Started by dude |
3 Replies
2629 Views |
![]() by bmccowan |
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