Welcome To the Hoffman Amplifiers Forum
September 06, 2025, 06:17:42 am
Welcome To the Hoffman Amplifiers ForumSeptember 06, 2025, 06:17:42 am | ||
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1 Replies
1375 Views |
November 25, 2023, 10:10:22 pmby PRR |
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2 Replies
1593 Views |
November 25, 2023, 07:25:26 pm by ALBATROS1234 |
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1 Replies
1327 Views |
November 25, 2023, 03:57:27 pm by shooter |
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2 Replies
1522 Views |
November 25, 2023, 12:43:13 pm by rafe |
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5 Replies
2042 Views |
November 25, 2023, 09:11:37 am by plexi50 |
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Help with Hum - PR Build
Started by indiehouse |
32 Replies
5183 Views |
November 25, 2023, 08:44:37 am by tubeswell |
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AB763 Studio Mod
Started by SurvivorSound |
45 Replies
8135 Views |
November 24, 2023, 07:27:37 pm by SurvivorSound |
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2 Replies
1482 Views |
November 24, 2023, 07:20:38 pm by hiegdk |
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0 Replies
1683 Views |
November 22, 2023, 01:53:04 pm by Makita |
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CT question in an OT
Started by newguitarsmell |
3 Replies
1700 Views |
November 21, 2023, 11:41:27 am by newguitarsmell |
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PT diagram
Started by Nathan |
3 Replies
1815 Views |
November 21, 2023, 11:17:42 am by pdf64 |
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Express circuit variations
Started by Ledvedder |
0 Replies
1475 Views |
November 20, 2023, 11:29:27 pm by Ledvedder |
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5F1 Champ Build Diagnosis
Started by GarlandKelley |
28 Replies
5276 Views |
November 20, 2023, 10:54:29 pm by PRR |
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Modeling tube power amp ideas
Started by guitardude57 |
4 Replies
2579 Views |
November 20, 2023, 04:01:17 am by guitardude57 |
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Trainwreck Express weird note decay
Started by Ledvedder |
6 Replies
2645 Views |
November 19, 2023, 10:42:07 am by tubenit |
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2 Replies
1973 Views |
November 18, 2023, 08:15:47 pm by MSVguitar |
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Hammond transformer primary question
Started by Diverted |
4 Replies
2384 Views |
November 18, 2023, 04:11:10 pm by HotBluePlates |
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P.I. grid leak question
Started by joesatch |
6 Replies
2920 Views |
November 18, 2023, 03:05:58 pm by HotBluePlates |
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5 Replies
3022 Views |
November 18, 2023, 05:30:36 am by sluckey |
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vintage fender choke question
Started by jhanly |
3 Replies
2321 Views |
November 17, 2023, 04:16:01 am by Latole |
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OT matching crisis.
Started by joesatch |
8 Replies
2966 Views |
November 16, 2023, 12:57:30 pm by sluckey |
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3 Replies
2407 Views |
November 16, 2023, 12:46:20 pm by Deric |
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BlackVibeWatt
Started by hiegdk |
5 Replies
3033 Views |
November 16, 2023, 09:11:38 am by GroundhogKen |
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Vintage Acoustic amp switches
Started by pbman1953 |
0 Replies
1881 Views |
November 16, 2023, 08:43:37 am by pbman1953 |
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DeArmond R15t - Tremolo Help
Started by O-Fuzz |
16 Replies
4623 Views |
November 15, 2023, 07:50:07 pm by O-Fuzz |
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6g15 "Blues/Surf" Mod
Started by macfadyb |
3 Replies
2806 Views |
November 15, 2023, 03:40:50 pm by sluckey |
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Fender Pro Reverb
Started by makjoh |
13 Replies
4280 Views |
November 14, 2023, 11:50:36 am by makjoh |
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AO-35 PT question
Started by joesatch |
19 Replies
4587 Views |
November 14, 2023, 11:26:36 am by sluckey |
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The Rob Robinette JCM 800/22 6V6
Started by ToneQwest |
17 Replies
7143 Views |
November 13, 2023, 05:53:34 pm by ToneQwest |
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6 pin power tubes?
Started by ALBATROS1234 |
5 Replies
3359 Views |
November 13, 2023, 01:31:45 pm by kagliostro |
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Fender 125P34AX
Started by Esquirefreak |
9 Replies
3782 Views |
November 13, 2023, 09:56:55 am by Esquirefreak |
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54 Replies
9451 Views |
November 13, 2023, 02:38:15 am by Latole |
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Canadian "Symphonic"
Started by rafe |
10 Replies
3337 Views |
November 12, 2023, 08:35:02 pm by rafe |
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6G2-ish build with reverb
Started by burt_toast |
23 Replies
4506 Views |
November 12, 2023, 01:01:30 pm by tubeswell |
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5 Replies
2739 Views |
November 11, 2023, 01:01:15 pm by sluckey |
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Mixing parallel triodes
Started by clyde |
8 Replies
3384 Views |
November 10, 2023, 07:50:20 pm by PRR |
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Output transformer matching question.
Started by Tapsnap |
4 Replies
2654 Views |
November 10, 2023, 03:46:48 pm by PRR |
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Maintenance for old potentiometers
Started by Esquirefreak |
7 Replies
3122 Views |
November 10, 2023, 09:56:11 am by kagliostro |
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Input stages, biasing
Started by peacocksuit |
8 Replies
3179 Views |
November 10, 2023, 07:32:42 am by HotBluePlates |
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6 Replies
3330 Views |
November 10, 2023, 06:43:15 am by jjasilli |
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April 1937
Started by PRR |
13 Replies
4090 Views |
November 09, 2023, 10:38:51 pm by tubeswell |
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Old-school cap notation/Gibson schematic
Started by tdvt |
5 Replies
2610 Views |
November 09, 2023, 05:14:25 pm by sluckey |
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Oscillation from Presence Control
Started by jewishjay |
17 Replies
4596 Views |
November 09, 2023, 03:21:50 pm by AlNewman |
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15 Replies
5130 Views |
November 08, 2023, 08:13:33 pm by ebulakowski |
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Strange circuit Echolette B30 amp
Started by cfortner |
5 Replies
2549 Views |
November 08, 2023, 03:36:00 pm by cfortner |
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4 Replies
2286 Views |
November 08, 2023, 03:05:36 pm by kagliostro |
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New 5F6A Build - Super Low Volume
Started by rvaughan |
14 Replies
4182 Views |
November 08, 2023, 01:00:28 pm by rvaughan |
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13 Replies
3787 Views |
November 07, 2023, 12:04:50 am by PRR |
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7 Replies
3078 Views |
November 06, 2023, 04:14:14 pm by ALBATROS1234 |
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separated bass/treble controls
Started by burt_toast |
8 Replies
3128 Views |
November 06, 2023, 08:48:10 am by tubeswell |
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