Welcome To the Hoffman Amplifiers Forum
July 14, 2026, 02:18:14 pm
Welcome To the Hoffman Amplifiers ForumJuly 14, 2026, 02:18:14 pm | ||
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| tomojt and 135 Guests are viewing this board. | ||||
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23 Replies
8613 Views |
January 06, 2020, 09:09:29 pmby Joeriz |
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Champ Build Trans Hum and high B+
Started by shaun |
8 Replies
5212 Views |
January 06, 2020, 06:26:15 pm by shaun |
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Push-Pull Amp. Re-building from scratch
Started by Tapsnap |
12 Replies
6603 Views |
January 05, 2020, 08:33:16 pm by Tapsnap |
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18 Replies
8982 Views |
January 04, 2020, 04:12:45 pm by shooter |
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Grounding ?
Started by etneccas |
6 Replies
4621 Views |
January 04, 2020, 12:37:13 pm by Willabe |
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Need Help with a Schematic
Started by TubeJunkie |
8 Replies
6234 Views |
January 04, 2020, 08:05:43 am by TubeJunkie |
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1 Replies
3530 Views |
January 03, 2020, 08:20:21 pm by trobbins |
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Fender AB763, no tremolo question
Started by Diverted |
9 Replies
7335 Views |
January 03, 2020, 04:03:41 am by kagliostro |
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Carolina songbird plus
Started by Bugman3183 |
19 Replies
7284 Views |
January 02, 2020, 10:50:10 am by Bugman3183 |
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5 Replies
4117 Views |
January 02, 2020, 09:59:49 am by ToneJunkie |
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22 Replies
11330 Views |
January 01, 2020, 11:55:14 am by 1blueheron |
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Plate resistor blowing
Started by fossilshark |
22 Replies
8623 Views |
December 31, 2019, 05:29:34 pm by fossilshark |
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8 Replies
5243 Views |
December 31, 2019, 01:54:55 pm by guitarrock04 |
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78 Champ Mod
Started by 2deaf |
15 Replies
8119 Views |
December 30, 2019, 11:43:13 pm by Willabe |
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70s Silverface Princeton Reverb
Started by BlackCrowe604 |
2 Replies
3457 Views |
December 30, 2019, 09:28:35 pm by silverfox |
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6L6 AB763 Reverb in a Princeton Chassis
Started by aabbs20 |
6 Replies
5116 Views |
December 28, 2019, 11:26:28 pm by glass54 |
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SLuckey's AC-15 build - second time around
Started by jly56 |
18 Replies
9503 Views |
December 28, 2019, 06:03:13 pm by Ritchie200 |
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Help Me with my Tube Amp Journey
Started by johngovan |
7 Replies
4097 Views |
December 28, 2019, 05:30:41 pm by johngovan |
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31 Replies
11149 Views |
December 27, 2019, 08:16:17 pm by ululufut |
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Matchless Lightning build complete
Started by daveyajd |
8 Replies
6234 Views |
December 26, 2019, 09:39:47 pm by vampwizzard |
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6BQ6gtb/6CU6 sound great
Started by ALBATROS1234 |
9 Replies
8338 Views |
December 26, 2019, 06:50:33 pm by ALBATROS1234 |
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Tophat super deluxe issues
Started by phsyconoodler |
20 Replies
9691 Views |
December 26, 2019, 06:35:50 pm by DummyLoad |
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SF Vibrolux redplating, losing voltage
Started by AxeAmpTN |
11 Replies
6288 Views |
December 26, 2019, 09:37:48 am by AxeAmpTN |
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Split Plate Load LTPI el84
Started by cboysen |
0 Replies
3331 Views |
December 25, 2019, 07:51:02 am by cboysen |
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Filter Capacitor Tolerances
Started by jaster55 |
6 Replies
4476 Views |
December 24, 2019, 10:11:12 am by sluckey |
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HV filtering using stby switch
Started by dude |
28 Replies
8703 Views |
December 23, 2019, 10:04:29 am by Colas LeGrippa |
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5 Replies
4587 Views |
December 22, 2019, 11:32:43 pm by TubeGeek |
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13 Replies
6381 Views |
December 22, 2019, 06:45:49 pm by shooter |
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OT impedance question
Started by daveyajd |
10 Replies
5910 Views |
December 21, 2019, 03:23:46 am by kagliostro |
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Bias balance pot not functioning
Started by playindabluz |
7 Replies
5053 Views |
December 20, 2019, 12:32:20 pm by DummyLoad |
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13 Replies
7131 Views |
December 19, 2019, 01:33:03 pm by DummyLoad |
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Reverb feeding back
Started by Fiat_cc |
4 Replies
4180 Views |
December 19, 2019, 06:58:12 am by sluckey |
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New Princeton Reverb build PI issue
Started by Apexelectric |
45 Replies
15475 Views |
December 18, 2019, 09:23:36 pm by Apexelectric |
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Firefly Power Amp Help
Started by johngovan |
9 Replies
5861 Views |
December 18, 2019, 06:42:34 pm by johngovan |
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67 Replies
24953 Views |
December 17, 2019, 06:15:08 am by shooter |
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Preamp Bias vary Trem in AB763?
Started by guitylerham |
9 Replies
6548 Views |
December 16, 2019, 03:30:01 pm by guitylerham |
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10 Replies
6484 Views |
December 16, 2019, 02:41:26 pm by mresistor |
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Minimum gr1 resistance
Started by Colas LeGrippa |
7 Replies
4567 Views |
December 15, 2019, 11:50:50 pm by kagliostro |
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10 Replies
5819 Views |
December 15, 2019, 11:04:17 pm by glass54 |
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Cap foil direction
Started by daveyajd |
13 Replies
6796 Views |
December 15, 2019, 09:21:16 am by mresistor |
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Bias for ECC99 Mini Vox AC30?
Started by roseblood11 |
9 Replies
7233 Views |
December 14, 2019, 04:48:41 pm by kagliostro |
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75 Replies
23678 Views |
December 14, 2019, 11:36:19 am by Jennings |
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One chassis ground or two?
Started by tony321owen |
16 Replies
9405 Views |
December 14, 2019, 11:35:40 am by jjasilli |
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4 Replies
4929 Views |
December 13, 2019, 05:35:05 pm by kagliostro |
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9 Replies
5620 Views |
December 12, 2019, 05:31:50 pm by Backwoods Joe |
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51 Replies
18448 Views |
December 12, 2019, 04:51:12 pm by Fiat_cc |
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Grid bias w/tremolo?
Started by yorgle |
24 Replies
10502 Views |
December 12, 2019, 03:27:15 pm by yorgle |
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Marshall JCM800 50MV w/ reverb repair
Started by Opry Audio |
4 Replies
4392 Views |
December 11, 2019, 09:49:59 pm by nandrewjackson |
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21 Replies
9012 Views |
December 11, 2019, 09:31:31 am by sluckey |
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10 Replies
7048 Views |
December 11, 2019, 04:41:12 am by pdf64 |
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