Welcome To the Hoffman Amplifiers Forum
June 09, 2026, 08:23:04 pm
Welcome To the Hoffman Amplifiers ForumJune 09, 2026, 08:23:04 pm | ||
| Subject / Started by | Replies / Views | Last post  |
||
|---|---|---|---|---|
| 0 Members and 50 Guests are viewing this board. | ||||
|
|
Please do not use VPN's
Started by EL34 |
48 Replies
18894 Views |
February 26, 2026, 11:41:16 amby Greenwichpaul |
|
|
ALL-TIME great information
Started by PRR |
0 Replies
55880 Views |
April 16, 2018, 08:09:37 pm by PRR |
|
|
1 Replies
62884 Views |
October 30, 2015, 01:24:25 pm by EL34 |
|
|
|
|
What's this board for?
Started by EL34 |
0 Replies
41054 Views |
May 28, 2009, 04:14:29 pm by EL34 |
|
|
First amp build
Started by Mongrel714 |
41 Replies
2128 Views |
June 09, 2026, 06:07:06 pm by Mongrel714 |
|
|
Any tips for taming a wild 5E3?
Started by slim66 |
5 Replies
156 Views |
June 09, 2026, 02:02:53 pm by sluckey |
|
|
|
Tube Preamp SMPS
Started by DummyLoad |
6 Replies
2022 Views |
June 09, 2026, 08:51:17 am by Jonas |
|
|
|
silvertone 1484
Started by johnfromcyrene |
23 Replies
930 Views |
June 09, 2026, 07:59:06 am by passaloutre |
|
|
|
Bias Help for Rob Robinette JCM800 6V6
Started by rud85ny |
10 Replies
472 Views |
June 08, 2026, 11:35:33 pm by sluckey |
|
|
|
10 Replies
502 Views |
June 07, 2026, 12:51:53 pm by HotBluePlates |
|
|
|
|
Valco National 1201 1202 Sportsman
Started by bmccowan |
7 Replies
274 Views |
June 04, 2026, 02:53:42 pm by passaloutre |
|
|
63 Replies
13258 Views |
June 04, 2026, 09:59:40 am by kagliostro |
|
|
|
|
I just had to mess with it...
Started by slim66 |
2 Replies
361 Views |
June 02, 2026, 11:59:53 pm by tubeswell |
|
|
|
Oscilloscope question
Started by Banjan73 |
27 Replies
1051 Views |
June 02, 2026, 06:13:24 pm by astronomicum |
|
|
|
Ampeg SB-12 inspired amp
Started by Banjan73 |
9 Replies
2137 Views |
June 02, 2026, 12:26:27 am by Banjan73 |
|
|
|
2 Replies
492 Views |
June 01, 2026, 12:40:35 am by DummyLoad |
|
|
|
|
Some questions about the GU-17
Started by ECV02 |
13 Replies
8572 Views |
May 31, 2026, 03:21:35 pm by murrayatuptown |
|
|
|
JCM800 2204 diagram review
Started by a90s2cs |
13 Replies
34325 Views |
May 30, 2026, 01:41:23 pm by pdf64 |
|
|
|
Princeton Reverb circuit refinements
Started by tristanc |
34 Replies
11067 Views |
May 29, 2026, 09:20:43 pm by johnfromcyrene |
|
|
|
31 Replies
8799 Views |
May 29, 2026, 06:10:04 pm by AX84CH |
|
|
|
|
Selling amps question
Started by Blooze |
7 Replies
518 Views |
May 28, 2026, 01:23:04 pm by bmccowan |
|
|
|
17 Replies
6349 Views |
May 28, 2026, 08:45:32 am by strangbangthang |
|
|
|
|
help with classic 30 mod please
Started by 12AX7 |
49 Replies
9135 Views |
May 27, 2026, 11:40:56 pm by 12AX7 |
|
|
|
4 Replies
352 Views |
May 27, 2026, 07:06:45 pm by glass54 |
|
|
|
|
12 Replies
754 Views |
May 27, 2026, 08:16:11 am by passaloutre |
|
|
|
|
8 Replies
510 Views |
May 27, 2026, 07:46:47 am by JPK |
|
|
|
|
5 Replies
445 Views |
May 25, 2026, 12:14:26 pm by Yosser |
|
|
|
|
Selmer Zodiac Twin 30
Started by johnfromcyrene |
43 Replies
3898 Views |
May 24, 2026, 08:50:33 am by sluckey |
|
|
|
20 Replies
12080 Views |
May 23, 2026, 09:18:30 am by Lectroid |
|
|
|
|
9 Replies
4343 Views |
May 23, 2026, 07:11:42 am by pbman1953 |
|
|
|
|
5f2a reverb design
Started by tomojt |
3 Replies
484 Views |
May 22, 2026, 11:35:54 am by kagliostro |
|
|
|
EH-150/185 build complete
Started by Jerry garrcia |
2 Replies
3676 Views |
May 22, 2026, 05:53:41 am by tomojt |
|
|
|
Octave down effect with tubes
Started by Lauri |
27 Replies
9452 Views |
May 22, 2026, 05:08:20 am by Lauri |
|
|
|
AC30 TremVib Issue
Started by inapier |
2 Replies
471 Views |
May 20, 2026, 01:47:17 pm by inapier |
|
|
|
3 Replies
584 Views |
May 19, 2026, 12:31:25 am by AlNewman |
|
|
|
|
Tube rectifier formula
Started by Yosser |
7 Replies
1446 Views |
May 18, 2026, 11:18:29 am by Merlin |
|
|
|
AC15 C1 modifications?
Started by leonc |
3 Replies
554 Views |
May 16, 2026, 01:55:46 pm by sluckey |
|
|
|
Tremolo still Ticking
Started by JustMike |
12 Replies
8578 Views |
May 15, 2026, 06:47:12 am by Fozziemusic |
|
|
|
Backup diodes on a gz34 rectifier
Started by Yosser |
6 Replies
1924 Views |
May 15, 2026, 05:12:10 am by Yosser |
|
|
|
67 Replies
10344 Views |
May 12, 2026, 12:45:39 pm by wsscott |
|
|
|
|
0 Replies
1338 Views |
May 10, 2026, 06:43:33 pm by 12AX7 |
|
|
|
|
Bias question
Started by 12AX7 |
24 Replies
4746 Views |
May 09, 2026, 03:26:43 pm by 12AX7 |
|
|
|
Trem-O-Nator snags
Started by peacocksuit |
9 Replies
2807 Views |
May 08, 2026, 03:02:13 pm by peacocksuit |
|
|
|
4 Replies
1813 Views |
May 06, 2026, 07:59:50 am by MORE_Guitar_Solos |
|
|
|
|
Classic 30 tone mod
Started by 12AX7 |
2 Replies
1598 Views |
May 05, 2026, 07:54:54 pm by 12AX7 |
|
|
|
Super 6G4A speed Pot
Started by sam |
2 Replies
1662 Views |
May 03, 2026, 05:17:06 pm by sam |
|
|
|
1 Replies
1489 Views |
May 03, 2026, 11:06:37 am by Yosser |
|
|
|
|
AO-35 Schematics
Started by Texson |
7 Replies
3205 Views |
May 03, 2026, 10:18:24 am by dude |
|
|
|
11 Replies
3121 Views |
May 02, 2026, 10:49:16 am by Colas LeGrippa |
|
|
|
|
Mesa tc-50 questions
Started by Beezerboy |
3 Replies
1804 Views |
May 01, 2026, 07:52:20 pm by jim |
Normal Topic
Hot Topic (More than 25 replies)
Very Hot Topic (More than 50 replies)
Locked Topic
Sticky Topic
Poll
| Choose a link from the Hoffman Amplifiers parts catalog |
||
|
Mobile Device Catalog Link |
Yard Sale Discontinued |
Misc. Hardware |
| What's New |
Board Building Parts |
Amp trim Handles |
|
Lamps Diodes |
Hoffman Turret Boards |
Channel Switching |
| Resistors |
Fender Eyelet Boards |
Screws/Nuts Washers |
|
Jacks/Plugs Connectors |
Misc Eyelet Boards |
Tools |
| Capacitors |
Custom Boards |
Tubes Valves |
|
Pots Knobs |
Fuses/Cords |
Chassis |
|
Tube Sockets |
Switches |
Wire Cable |