Welcome To the Hoffman Amplifiers Forum
August 29, 2026, 07:34:36 pm
Welcome To the Hoffman Amplifiers ForumAugust 29, 2026, 07:34:36 pm | ||
| Subject / Started by | Replies / Views | Last post  |
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Dual SE & PP Amp - Help with power supply
Started by _Steve |
12 Replies
6940 Views |
January 22, 2022, 11:33:27 amby kagliostro |
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Horrible hum cased by?
Started by timmyjoe |
21 Replies
9498 Views |
January 21, 2022, 04:56:16 pm by acheld |
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Component selection - PRRI rebuild
Started by mellotron |
4 Replies
4385 Views |
January 20, 2022, 08:39:22 pm by PRR |
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Master volume on Matchless Clubman
Started by frankenxtein |
10 Replies
5751 Views |
January 20, 2022, 06:23:51 pm by frankenxtein |
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Hand Wired vs Printed Circuit Board.
Started by Grees01 |
27 Replies
11765 Views |
January 20, 2022, 07:55:15 am by kagliostro |
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Bugera V22 h
Started by HighFlyingV |
7 Replies
7802 Views |
January 20, 2022, 07:22:14 am by HighFlyingV |
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p2pAmps Rusty-Dawg #001 Demo
Started by p2pAmps |
6 Replies
5270 Views |
January 20, 2022, 12:41:27 am by Grees01 |
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Mystery Transformers
Started by Blueboozer |
6 Replies
5118 Views |
January 19, 2022, 09:16:22 pm by Blueboozer |
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5 Replies
5787 Views |
January 19, 2022, 03:53:31 am by Latole |
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Output transformer question
Started by Stuff4bikes |
1 Replies
4234 Views |
January 19, 2022, 03:38:07 am by glass54 |
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Champ 5F1 with 7591
Started by mikhett |
9 Replies
5379 Views |
January 18, 2022, 10:57:21 pm by mikhett |
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5 Replies
5017 Views |
January 18, 2022, 05:32:16 pm by turbofeedus |
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8 Replies
6958 Views |
January 18, 2022, 01:03:29 pm by joesatch |
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help spec'n PT?
Started by Jonas |
18 Replies
8101 Views |
January 18, 2022, 05:14:10 am by shooter |
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Reverb Problem
Started by Travis8 |
10 Replies
6240 Views |
January 17, 2022, 08:38:30 pm by PRR |
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12.6 volt winding reduced to 6.3
Started by valvetones |
25 Replies
11860 Views |
January 17, 2022, 08:21:07 pm by valvetones |
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Strange Voltage Readings On Prototype Board
Started by AHeck |
2 Replies
4606 Views |
January 17, 2022, 08:04:32 pm by AHeck |
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Where to begin?
Started by Will.darden |
2 Replies
3888 Views |
January 17, 2022, 07:28:10 pm by Grees01 |
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11 Replies
7043 Views |
January 17, 2022, 06:04:41 pm by pdf64 |
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4 Replies
4875 Views |
January 17, 2022, 03:13:59 pm by Bieworm |
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2204 V1 static when i touch the tube
Started by joesatch |
5 Replies
5082 Views |
January 17, 2022, 04:08:23 am by shooter |
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3 Replies
4872 Views |
January 16, 2022, 04:31:03 pm by HotBluePlates |
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Resistor type question
Started by joesatch |
4 Replies
4097 Views |
January 16, 2022, 12:59:39 pm by mresistor |
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Reverb pot in a drip edge PR
Started by mrhudson27 |
2 Replies
4263 Views |
January 16, 2022, 10:16:15 am by HotBluePlates |
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Some experienced eyes on this?
Started by jewishjay |
5 Replies
4271 Views |
January 15, 2022, 08:47:31 pm by ghostinthescope |
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Princeton 5881 trem-o-nator questions
Started by acheld |
2 Replies
3997 Views |
January 14, 2022, 08:00:36 am by ac427v |
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6 Replies
5795 Views |
January 14, 2022, 12:27:00 am by PRR |
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HT rectification
Started by ok_state_blues |
6 Replies
4850 Views |
January 13, 2022, 02:23:07 pm by ok_state_blues |
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3 Replies
4689 Views |
January 13, 2022, 10:07:58 am by JFlo |
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High gain two channel EL84 guitar amp
Started by Banjan73 |
35 Replies
13020 Views |
January 13, 2022, 07:54:14 am by Banjan73 |
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AC15/30 build Help
Started by AndyCharles |
28 Replies
10955 Views |
January 12, 2022, 07:30:08 pm by HotBluePlates |
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AC15 Power Transformer
Started by Glenn |
12 Replies
8173 Views |
January 12, 2022, 04:38:54 pm by mresistor |
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Transformer Repair
Started by Mason |
13 Replies
7084 Views |
January 12, 2022, 03:06:23 pm by Latole |
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Cabinet Finishes
Started by p2pAmps |
7 Replies
5653 Views |
January 12, 2022, 03:58:07 am by Latole |
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TLA turret layout with Vus (unfinished)
Started by Jatchley |
10 Replies
6014 Views |
January 11, 2022, 09:10:05 am by Jatchley |
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2 Replies
4545 Views |
January 11, 2022, 07:11:42 am by EL34 |
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5 Replies
5303 Views |
January 11, 2022, 04:26:28 am by isaac_teller |
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i need help! 6L6 large mismatched
Started by johngovan |
17 Replies
8359 Views |
January 10, 2022, 06:30:09 pm by tubeswell |
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Does This Circuit Exist?
Started by Nathan |
9 Replies
7137 Views |
January 10, 2022, 02:51:43 pm by SILVERGUN |
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11 Replies
6686 Views |
January 10, 2022, 09:00:40 am by bmccowan |
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Tweed twin HP 6v6 OP tranny
Started by JGk |
7 Replies
5267 Views |
January 10, 2022, 12:36:35 am by valvetones |
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How to determine B+
Started by PlantEater |
11 Replies
6986 Views |
January 09, 2022, 09:32:26 pm by PlantEater |
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8 Replies
6203 Views |
January 09, 2022, 07:30:11 pm by HotBluePlates |
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output transformer inpedance
Started by jamesedmunda |
1 Replies
4102 Views |
January 09, 2022, 04:14:55 pm by shooter |
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5 Replies
7339 Views |
January 09, 2022, 02:34:35 pm by CO_Hoya |
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Tremolo mosfet cf
Started by BrainDeadAmps |
2 Replies
4105 Views |
January 09, 2022, 01:57:18 pm by BrainDeadAmps |
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Standby switch resistor mod with results
Started by acheld |
9 Replies
8003 Views |
January 09, 2022, 01:38:59 pm by PharmRock |
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3 Replies
4977 Views |
January 08, 2022, 10:55:26 am by fenderguy81 |
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Valco umbilical cord
Started by bmccowan |
5 Replies
4694 Views |
January 08, 2022, 08:10:07 am by bmccowan |
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64 Replies
31371 Views |
January 07, 2022, 10:01:35 pm by mresistor |
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