Welcome To the Hoffman Amplifiers Forum
July 14, 2026, 09:35:51 am
Welcome To the Hoffman Amplifiers ForumJuly 14, 2026, 09:35:51 am | ||
| Subject / Started by | Replies / Views | Last post  |
||
|---|---|---|---|---|
| 0 Members and 73 Guests are viewing this board. | ||||
|
|
290AX wiring with a Champ 600 reissue
Started by JPK |
4 Replies
4145 Views |
December 10, 2022, 01:45:51 pmby JPK |
|
|
|
8 Replies
4602 Views |
December 10, 2022, 06:32:19 am by kagliostro |
|
|
|
|
Revisit- Fender Super Twin- New Project
Started by pbman1953 |
14 Replies
5606 Views |
December 09, 2022, 04:40:03 pm by pbman1953 |
|
|
|
3 Replies
3761 Views |
December 09, 2022, 07:41:06 am by BrainDeadAmps |
|
|
|
|
23 Replies
6834 Views |
December 09, 2022, 12:03:31 am by Platefire |
|
|
|
|
5 Replies
4040 Views |
December 08, 2022, 05:07:44 pm by fdesalvo |
|
|
|
|
14 Replies
6382 Views |
December 08, 2022, 09:19:02 am by kagliostro |
|
|
|
|
AB764 Vibrochamp build questions
Started by J3ona1 |
2 Replies
3689 Views |
December 07, 2022, 10:29:05 pm by J3ona1 |
|
|
|
Another PR build post with questions…
Started by Jalmeida |
1 Replies
2707 Views |
December 06, 2022, 11:18:05 pm by sluckey |
|
|
|
Need help with something wierd
Started by RoninAudio |
6 Replies
4225 Views |
December 06, 2022, 01:05:12 pm by RoninAudio |
|
|
|
6 Replies
5209 Views |
December 05, 2022, 10:13:49 pm by JPK |
|
|
|
|
New 5E3 build bias check - am I ok?
Started by JPK |
10 Replies
5512 Views |
December 05, 2022, 01:22:02 pm by Voxbox |
|
|
|
Changing this schematic presence control
Started by dude |
8 Replies
5541 Views |
December 05, 2022, 12:21:48 pm by dude |
|
|
|
Output transformer ringing
Started by Esquirefreak |
0 Replies
3437 Views |
December 05, 2022, 11:33:53 am by Esquirefreak |
|
|
|
Amp Projects
Started by Lectroid |
19 Replies
7961 Views |
December 04, 2022, 07:18:54 pm by PRR |
|
|
|
11 Replies
5257 Views |
December 04, 2022, 02:07:36 pm by kagliostro |
|
|
|
|
Cathode biased Blues Junior new project
Started by acheld |
13 Replies
7190 Views |
December 04, 2022, 11:01:31 am by pdf64 |
|
|
|
19 Replies
8436 Views |
December 03, 2022, 11:26:43 am by bmccowan |
|
|
|
|
Passive Effects Loop Implementation
Started by McAbe |
9 Replies
7226 Views |
December 03, 2022, 02:47:37 am by pdf64 |
|
|
|
3 Replies
3683 Views |
December 02, 2022, 06:27:10 pm by kagliostro |
|
|
|
|
Power transformer wiring question
Started by Erik Aa |
23 Replies
8693 Views |
December 02, 2022, 01:38:04 pm by Erik Aa |
|
|
59 Replies
80906 Views |
December 01, 2022, 04:01:27 pm by shooter |
|
|
|
|
The danger of vacuum tubes
Started by isaac_teller |
5 Replies
4396 Views |
December 01, 2022, 03:44:28 pm by mresistor |
|
|
|
Switch between 2 different output valves
Started by Paulycoo |
16 Replies
6054 Views |
December 01, 2022, 11:20:55 am by kagliostro |
|
|
|
7 Replies
4023 Views |
November 30, 2022, 01:21:48 pm by fdesalvo |
|
|
|
|
parallel input jack wiring
Started by BrainDeadAmps |
2 Replies
3500 Views |
November 30, 2022, 12:33:00 pm by BrainDeadAmps |
|
|
|
16 Replies
6024 Views |
November 30, 2022, 11:58:57 am by BetterOffShred |
|
|
|
|
AC10 Intensity in AC4? <<Solved>>
Started by dwinstonwood |
14 Replies
6421 Views |
November 30, 2022, 08:58:41 am by dwinstonwood |
|
|
29 Replies
8767 Views |
November 29, 2022, 10:11:29 pm by JPK |
|
|
|
|
Howling Feedback in Reveb Recovery
Started by jewishjay |
5 Replies
4058 Views |
November 29, 2022, 11:02:35 am by GroundhogKen |
|
|
|
12 Replies
6014 Views |
November 29, 2022, 07:33:48 am by Williamblake |
|
|
|
|
15 Replies
13731 Views |
November 27, 2022, 05:57:03 pm by kagliostro |
|
|
|
|
Vox AC4 question. Need explanations.
Started by johngovan |
9 Replies
5499 Views |
November 27, 2022, 03:49:28 pm by kagliostro |
|
|
|
10 Replies
5848 Views |
November 27, 2022, 04:59:22 am by fkitch |
|
|
|
|
7 Replies
4774 Views |
November 26, 2022, 05:01:22 pm by PRR |
|
|
|
|
2 Replies
3813 Views |
November 26, 2022, 10:42:19 am by acheld |
|
|
|
|
9 Replies
5204 Views |
November 25, 2022, 05:29:03 pm by HotBluePlates |
|
|
|
|
Steve Luckey November project
Started by isaac_teller |
3 Replies
3385 Views |
November 25, 2022, 02:45:17 pm by kagliostro |
|
|
|
Any issues with this laylout
Started by dude |
12 Replies
5648 Views |
November 25, 2022, 02:23:50 pm by sluckey |
|
|
|
15 Replies
8799 Views |
November 25, 2022, 09:19:39 am by kagliostro |
|
|
|
|
16 Replies
6823 Views |
November 25, 2022, 02:07:04 am by Jennings |
|
|
|
|
1M value for Treble pot.
Started by Mr.Death |
2 Replies
3618 Views |
November 24, 2022, 06:10:13 pm by Mr.Death |
|
|
|
11 Replies
6448 Views |
November 24, 2022, 05:09:40 pm by tubeswell |
|
|
|
|
Plate Resistor Type Question
Started by dragonbat13 |
3 Replies
3844 Views |
November 24, 2022, 05:05:17 pm by tubeswell |
|
|
|
Coupling capacitors
Started by Mr.Death |
3 Replies
3767 Views |
November 24, 2022, 04:09:21 pm by PRR |
|
|
|
Leslie 45cab/47 power amp
Started by Willabe |
9 Replies
7907 Views |
November 24, 2022, 03:38:45 pm by PRR |
|
|
|
Hoffman Plexi 50 power supply
Started by Sergiouliana |
20 Replies
7711 Views |
November 24, 2022, 12:44:28 pm by pdf64 |
|
|
|
Output Transformer calculation
Started by Williamblake |
2 Replies
4382 Views |
November 24, 2022, 10:32:06 am by Williamblake |
|
|
|
Adding some bottom end to an AX84 High Octane
Started by JPK |
10 Replies
6512 Views |
November 24, 2022, 07:37:42 am by JPK |
|
|
|
spongy feel in preamp
Started by 12AX7 |
21 Replies
8054 Views |
November 23, 2022, 09:57:55 pm by tubeswell |
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 |