Welcome To the Hoffman Amplifiers Forum
June 09, 2026, 06:41:03 pm
Welcome To the Hoffman Amplifiers ForumJune 09, 2026, 06:41:03 pm | ||
| Subject / Started by | Replies / Views | Last post  |
||
|---|---|---|---|---|
| 0 Members and 19 Guests are viewing this board. | ||||
|
|
8 Replies
3984 Views |
March 07, 2025, 09:19:01 pmby Skeeter_pdx |
|
|
|
|
22 Replies
6572 Views |
March 07, 2025, 09:02:50 pm by Platefire |
|
|
|
|
11 Replies
7832 Views |
March 07, 2025, 07:04:20 pm by tubeswell |
|
|
|
|
47uf/50v caps in place of 47uf/100v cap
Started by punkykatt |
3 Replies
2840 Views |
March 07, 2025, 06:05:01 pm by punkykatt |
|
|
|
Fender Gibbs Reverb pan questions
Started by mresistor |
8 Replies
4223 Views |
March 07, 2025, 03:42:58 am by Bieworm |
|
|
|
23 Replies
7630 Views |
March 06, 2025, 04:31:47 pm by HotBluePlates |
|
|
|
|
5F1 first build preamp voltages issue
Started by FREYES_7 |
2 Replies
2778 Views |
March 06, 2025, 07:18:16 am by FREYES_7 |
|
|
|
LED bias and negative feedback
Started by passaloutre |
4 Replies
3240 Views |
March 05, 2025, 04:34:02 pm by passaloutre |
|
|
|
filter cap values, traynor yba4
Started by colorado |
2 Replies
2793 Views |
March 05, 2025, 10:03:54 am by shooter |
|
|
|
3 Replies
3079 Views |
March 05, 2025, 05:40:14 am by Merlin |
|
|
|
Schematics and layout drawings.
Started by Willabe |
28 Replies
9860 Views |
March 04, 2025, 01:00:20 pm by passaloutre |
|
|
|
Mesa Mark II C (sp10a) export
Started by 74-335 |
4 Replies
3309 Views |
March 04, 2025, 10:24:34 am by acheld |
|
|
|
Mini TOS SE with FX Loop Build
Started by PharmRock |
7 Replies
3731 Views |
March 02, 2025, 08:57:15 pm by PharmRock |
|
|
|
6N5P Russian made
Started by Cliff Rogers |
3 Replies
3711 Views |
March 02, 2025, 09:56:53 am by jansch |
|
|
|
Hello from a new member
Started by stw307 |
37 Replies
13996 Views |
March 02, 2025, 03:40:43 am by stw307 |
|
|
|
6 Replies
3976 Views |
March 02, 2025, 02:32:47 am by Latole |
|
|
|
|
L pad passive attenuator
Started by Snake5150 |
3 Replies
3142 Views |
February 28, 2025, 06:28:20 pm by Merlin |
|
|
|
8 Replies
3914 Views |
February 28, 2025, 01:37:49 pm by Redwood |
|
|
|
|
Help identifying heavy hum
Started by kasperbergholt |
7 Replies
3901 Views |
February 28, 2025, 01:28:28 pm by tubeswell |
|
|
|
9 Replies
4862 Views |
February 28, 2025, 12:15:59 pm by shooter |
|
|
|
|
Triwec Output Transformer info needed
Started by wsscott |
3 Replies
3084 Views |
February 28, 2025, 08:09:51 am by wsscott |
|
|
|
My First Tube Amp Build
Started by mar2112 |
9 Replies
4287 Views |
February 27, 2025, 10:16:25 pm by mar2112 |
|
|
|
3 Prong Grounded Cord Reference
Started by plexi50 |
4 Replies
3570 Views |
February 27, 2025, 09:23:37 am by jjasilli |
|
|
|
Testing output transformer
Started by fossilshark |
2 Replies
3219 Views |
February 26, 2025, 02:16:09 pm by kagliostro |
|
|
134 Replies
33253 Views |
February 25, 2025, 07:55:54 pm by Richs1979 |
|
|
|
|
23 Replies
7153 Views |
February 25, 2025, 07:38:36 pm by Willabe |
|
|
|
|
Fender Custom 68’ Pro Reverb findings
Started by goldstache |
0 Replies
2729 Views |
February 25, 2025, 05:16:35 pm by goldstache |
|
|
|
DIY attenuator build
Started by Snake5150 |
11 Replies
5156 Views |
February 25, 2025, 11:42:19 am by 66Strat |
|
|
|
capactior/ ESR meter recommendations
Started by joesatch |
3 Replies
3569 Views |
February 25, 2025, 10:50:20 am by Willabe |
|
|
|
Fixed biasing el84s
Started by jordan86 |
8 Replies
4777 Views |
February 25, 2025, 05:46:40 am by Merlin |
|
|
|
Master volume and grid leak resistors
Started by Snake5150 |
2 Replies
3177 Views |
February 25, 2025, 04:28:26 am by tubeswell |
|
|
|
Matchless Clubman build
Started by didierleclair |
11 Replies
5293 Views |
February 24, 2025, 06:25:19 pm by pdf64 |
|
|
|
DuKane Super Amp Build
Started by dmp |
2 Replies
2985 Views |
February 24, 2025, 11:49:30 am by dmp |
|
|
|
Impedance selector wiring
Started by Snake5150 |
1 Replies
2897 Views |
February 23, 2025, 04:01:16 pm by SEL49 |
|
|
|
Silvertone 1472 0n the bench(Platefire)
Started by rafe |
27 Replies
6862 Views |
February 23, 2025, 02:45:00 pm by Platefire |
|
|
|
Power Supply Issue
Started by TomG |
6 Replies
3540 Views |
February 22, 2025, 08:10:54 pm by TomG |
|
|
|
Reverb Circuit Recommendations
Started by Thisismyname |
12 Replies
5483 Views |
February 22, 2025, 10:06:18 am by Thisismyname |
|
|
|
lubricating a sliding eq
Started by pbman1953 |
5 Replies
3416 Views |
February 22, 2025, 08:16:28 am by shooter |
|
|
|
super original 64 vibrochamp recap??
Started by bullkelp |
33 Replies
7486 Views |
February 22, 2025, 02:56:52 am by Latole |
|
|
|
8K OT with EL34's how?
Started by joesatch |
26 Replies
7148 Views |
February 21, 2025, 11:07:53 am by jojokeo |
|
|
|
Early Gibson GA 40 Foot Switch Wiring
Started by plexi50 |
14 Replies
9865 Views |
February 20, 2025, 01:01:58 pm by Platefire |
|
|
|
2 Replies
3476 Views |
February 20, 2025, 08:50:33 am by Lauri |
|
|
|
|
Parallel v1 guidance
Started by joesatch |
6 Replies
4168 Views |
February 19, 2025, 11:35:51 pm by tubeswell |
|
|
|
Hiss at idle ... ideas?
Started by Diverted |
9 Replies
4007 Views |
February 18, 2025, 02:48:32 pm by Willabe |
|
|
|
Buguera G5 Infinium bad work
Started by J. Ignacio |
15 Replies
5212 Views |
February 18, 2025, 07:57:19 am by ac427v |
|
|
|
Jtm 45 tone stack
Started by Snake5150 |
23 Replies
7079 Views |
February 17, 2025, 09:18:54 pm by Snake5150 |
|
|
|
5e3 Adjustable Cathode Resistor Mod
Started by SteveInMN |
17 Replies
6590 Views |
February 16, 2025, 12:07:48 pm by SEL49 |
|
|
|
'63 Tremolux with scratchy pots
Started by SteveInMN |
13 Replies
4991 Views |
February 16, 2025, 10:10:24 am by SteveInMN |
|
|
|
Fender 6G4A Super / Intensity Pot Pop!
Started by plexi50 |
49 Replies
10675 Views |
February 15, 2025, 03:30:27 pm by plexi50 |
|
|
|
14 Replies
17609 Views |
February 15, 2025, 03:57:20 am by pdf64 |
|
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 |