Welcome To the Hoffman Amplifiers Forum
December 08, 2025, 12:12:30 pm
Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 12:12:30 pm | ||
| Subject / Started by | Replies / Views | Last post  |
||
|---|---|---|---|---|
| astronomicum and 132 Guests are viewing this board. | ||||
|
|
RCA 12ax7 vs Electro Harmonix
Started by cometphoton |
6 Replies
3693 Views |
August 23, 2022, 08:08:00 pmby bmccowan |
|
|
|
A little PT help, if you please..
Started by mmrxcsr01 |
7 Replies
3044 Views |
August 23, 2022, 02:32:50 pm by thetragichero |
|
|
|
Tighten up some flub on a half-power AC30?
Started by Cirrus |
2 Replies
2128 Views |
August 23, 2022, 10:15:48 am by Cirrus |
|
|
|
DC heater supply
Started by joesatch |
4 Replies
2423 Views |
August 23, 2022, 02:12:47 am by kagliostro |
|
|
|
4 Replies
2310 Views |
August 23, 2022, 12:59:36 am by acatlow@gmail.com |
|
|
|
|
7 Replies
3035 Views |
August 22, 2022, 02:29:15 pm by PRR |
|
|
|
|
Sunn Grid Noise
Started by plexi50 |
10 Replies
3131 Views |
August 22, 2022, 08:06:20 am by plexi50 |
|
|
|
5881 vs 6L6GB
Started by imgumby001 |
7 Replies
3151 Views |
August 22, 2022, 05:46:56 am by HotBluePlates |
|
|
|
Twin Reverb II Biasing Question
Started by dpm309 |
7 Replies
3370 Views |
August 21, 2022, 03:45:12 pm by dpm309 |
|
|
|
4 Replies
2283 Views |
August 21, 2022, 12:15:31 pm by kagliostro |
|
|
|
|
Help with ID of this resistor
Started by Apexelectric |
10 Replies
3351 Views |
August 20, 2022, 06:46:59 pm by Apexelectric |
|
|
|
3 button footswitch with a TRS ?
Started by joesatch |
10 Replies
3542 Views |
August 20, 2022, 05:16:40 pm by Williamblake |
|
|
|
Gibson GA50 question
Started by Leevi |
3 Replies
2533 Views |
August 20, 2022, 07:41:37 am by pdf64 |
|
|
|
S#!t! - That's A Lot of Iron!
Started by DummyLoad |
3 Replies
2510 Views |
August 20, 2022, 04:34:56 am by zircontweezer |
|
|
|
10 Replies
4579 Views |
August 19, 2022, 09:22:57 pm by DummyLoad |
|
|
|
|
14 Replies
3753 Views |
August 19, 2022, 07:44:47 pm by Coldhand75 |
|
|
|
|
6JB6A in a guitar amp
Started by Hojvaelde |
7 Replies
3531 Views |
August 19, 2022, 04:03:55 pm by PRR |
|
|
|
Vibrochamp tremolo question
Started by Esquirefreak |
1 Replies
1971 Views |
August 18, 2022, 07:45:07 pm by tubeswell |
|
|
|
RC4558 OP Amp Voltage Max
Started by plexi50 |
11 Replies
3834 Views |
August 17, 2022, 09:41:50 pm by DummyLoad |
|
|
1974 Sunn Model A No Sound!
Started by plexi50 |
40 Replies
8033 Views |
August 17, 2022, 06:53:32 pm by PRR |
|
|
|
3 Replies
2200 Views |
August 17, 2022, 06:29:20 pm by PRR |
|
|
|
|
Sluckey's Trem-O-Nator in a Deluxe NR
Started by mk_716 |
1 Replies
1964 Views |
August 17, 2022, 02:00:57 pm by sluckey |
|
|
|
4 Replies
2709 Views |
August 17, 2022, 10:57:01 am by dude |
|
|
|
|
Preamp voltage and tone Question
Started by tubenit |
10 Replies
4432 Views |
August 16, 2022, 11:20:30 am by shooter |
|
|
|
twisting B+ leads
Started by joesatch |
4 Replies
2465 Views |
August 16, 2022, 10:07:38 am by tubeswell |
|
|
|
too much gain on Ef86 Vox Ac15
Started by rafaelctt |
22 Replies
6710 Views |
August 16, 2022, 01:39:53 am by rafaelctt |
|
|
|
Q re: mixing circuit for Marshall’s
Started by RobBozic |
12 Replies
3646 Views |
August 15, 2022, 11:45:32 pm by Ed_Chambley |
|
|
|
Reverb tank impedances
Started by isaac_teller |
3 Replies
2195 Views |
August 14, 2022, 12:05:01 am by isaac_teller |
|
|
|
A jillion things to ground and to where?
Started by MrBreeze |
9 Replies
3108 Views |
August 13, 2022, 08:08:31 am by EL34 |
|
|
|
Having Trouble With the Math!!
Started by imgumby001 |
8 Replies
2768 Views |
August 12, 2022, 06:13:30 pm by imgumby001 |
|
|
|
Ampeg Gemini 1 Tremelo Problem (AGAIN)
Started by plexi50 |
19 Replies
5380 Views |
August 12, 2022, 03:26:58 pm by plexi50 |
|
|
|
19 Replies
14133 Views |
August 12, 2022, 09:05:29 am by wsscott |
|
|
|
|
3 Replies
2247 Views |
August 12, 2022, 01:30:37 am by Esquirefreak |
|
|
|
|
Over Capacitance
Started by jaster55 |
9 Replies
3044 Views |
August 12, 2022, 01:25:04 am by jaster55 |
|
|
|
New amp start up trouble
Started by Bieworm |
46 Replies
8869 Views |
August 12, 2022, 12:32:00 am by Bieworm |
|
|
|
5F1M Champ Micro Build
Started by EricR |
4 Replies
2734 Views |
August 11, 2022, 09:04:12 pm by EricR |
|
|
|
Dual PPIMV? Anyone?
Started by Ledvedder |
2 Replies
2039 Views |
August 11, 2022, 06:18:31 pm by acheld |
|
|
|
Anyone Recognize These?
Started by imgumby001 |
3 Replies
2364 Views |
August 11, 2022, 09:53:50 am by imgumby001 |
|
|
|
Blues junior build. No sound
Started by Brandonallen1212 |
13 Replies
3298 Views |
August 10, 2022, 06:31:23 pm by sluckey |
|
|
|
Univox amp
Started by Mats |
19 Replies
8434 Views |
August 10, 2022, 04:01:08 pm by kagliostro |
|
|
|
Hiwatt DR201 Choke?
Started by Balticnoiseforge |
18 Replies
6095 Views |
August 10, 2022, 09:42:54 am by JZRepair |
|
|
|
1 channel Tremolux in PR Chassis questions
Started by owen |
35 Replies
7869 Views |
August 09, 2022, 10:53:20 pm by owen |
|
|
|
Usage of 1760E or 1760H with EL84 pair
Started by Leevi |
12 Replies
3454 Views |
August 09, 2022, 10:25:05 am by dwinstonwood |
|
|
|
New 18 Watt Build
Started by zendragon63 |
1 Replies
2009 Views |
August 09, 2022, 05:10:03 am by tubenit |
|
|
|
135w UL Twin Reverb bias math
Started by winterturtle |
13 Replies
4180 Views |
August 08, 2022, 04:18:53 pm by shooter |
|
|
|
Runnin LED off heaters.
Started by joesatch |
30 Replies
6351 Views |
August 08, 2022, 01:55:42 pm by shooter |
|
|
|
5f6 layout help
Started by pizza |
9 Replies
2797 Views |
August 07, 2022, 12:03:45 pm by tubeswell |
|
|
|
My BF PR can REALLY do metal
Started by Dyerseve726 |
2 Replies
2341 Views |
August 06, 2022, 07:36:07 pm by Dyerseve726 |
|
|
63 Replies
19087 Views |
August 05, 2022, 11:53:32 pm by PRR |
|
|
|
|
Help Choosing Power Supply Layout
Started by Thisismyname |
5 Replies
2353 Views |
August 05, 2022, 10:06:14 am by acheld |
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 |