Welcome To the Hoffman Amplifiers ForumOctober 23, 2025, 01:40:44 am | ||
Subject / Started by | Replies / Views | Last post ![]() |
||
---|---|---|---|---|
0 Members and 60 Guests are viewing this board. | ||||
![]() |
![]() |
Output Trans question
Started by pda041376 |
14 Replies
3532 Views |
![]() by AmberB |
![]() |
![]() |
Heater reference voltage question
Started by AmberB |
6 Replies
2385 Views |
![]() by HotBluePlates |
![]() |
![]() |
quick question on heater wiring
Started by AmberB |
2 Replies
1762 Views |
![]() by HotBluePlates |
![]() |
![]() |
Heater filament resistance question
Started by Joel |
7 Replies
3953 Views |
![]() by HotBluePlates |
![]() |
![]() |
Rail Voltage on Grids
Started by Wanabejimi |
3 Replies
1866 Views |
![]() by Wanabejimi |
![]() |
![]() |
16 Replies
3922 Views |
![]() by PRR |
|
![]() |
![]() |
1/2w vs 1w resistors 5f1 build
Started by British1011 |
27 Replies
9685 Views |
![]() by 66Strat |
![]() |
![]() |
Stumped on bias problem
Started by luthierwnc |
19 Replies
5170 Views |
![]() by PRR |
![]() |
![]() |
Pro Jr. Layout?
Started by revel |
9 Replies
13501 Views |
![]() by EL34 |
![]() |
![]() |
Need advice: help me chart a course
Started by rockrink |
26 Replies
5700 Views |
![]() by bmccowan |
![]() |
![]() |
6 Replies
3842 Views |
![]() by tubeswell |
|
![]() |
![]() |
Looking for Guidance
Started by Jacob |
12 Replies
3544 Views |
![]() by Jacob |
![]() |
![]() |
Fender Ramparte Issue
Started by ListerHayes |
5 Replies
2652 Views |
![]() by shooter |
![]() |
![]() |
1 Replies
1722 Views |
![]() by pdf64 |
|
![]() |
![]() |
10 Replies
2748 Views |
![]() by texwest |
|
![]() |
![]() |
5 Replies
2360 Views |
![]() by Toxophilite |
|
![]() |
![]() |
1 Replies
1678 Views |
![]() by PRR |
|
![]() |
![]() |
Need help selecting choke size please
Started by leftu2 |
12 Replies
4396 Views |
![]() by tubeswell |
![]() |
![]() |
SmokedMeat Amp Layout
Started by DevD |
0 Replies
3179 Views |
![]() by DevD |
![]() |
![]() |
Plexi project using 6973's
Started by 1blueheron |
29 Replies
7945 Views |
![]() by bmccowan |
![]() |
![]() |
AO-44 to AC10?
Started by MWaldorf |
36 Replies
8328 Views |
![]() by MWaldorf |
![]() |
![]() |
13 Replies
4024 Views |
![]() by Latole |
|
![]() |
![]() |
Mesa "Duo-Class" Power
Started by OrganicEffects |
3 Replies
2834 Views |
![]() by OrganicEffects |
![]() |
![]() |
"better TMB Tone Stack" post elsewhere
Started by PRR |
7 Replies
2966 Views |
![]() by Tone Junkie |
![]() |
![]() |
Marshall 3315 power transformer?
Started by Searing |
4 Replies
1945 Views |
![]() by DummyLoad |
![]() |
![]() |
Fender Deluxe single channel
Started by dude |
9 Replies
2991 Views |
![]() by dude |
![]() |
![]() |
Single Ended Supro Thunderbolt?
Started by passaloutre |
12 Replies
4960 Views |
![]() by HotBluePlates |
![]() |
![]() |
4 Replies
2079 Views |
![]() by PRR |
|
![]() |
![]() |
15 Replies
4319 Views |
![]() by JayCobie |
|
![]() |
![]() |
Marshall 2204 FX loop
Started by SoundCity85 |
3 Replies
2556 Views |
![]() by 2deaf |
![]() |
![]() |
3 Replies
2659 Views |
![]() by lbitton93 |
|
![]() |
![]() |
30 Replies
5082 Views |
![]() by sluckey |
|
![]() |
![]() |
2 Replies
1808 Views |
![]() by FranciscoPerez |
|
![]() |
![]() |
What's the Frequency?
Started by JustMike |
3 Replies
2025 Views |
![]() by Williamblake |
![]() |
![]() |
54 Replies
9756 Views |
![]() by yorgle |
|
![]() |
![]() |
Line level into a 5751 pre?
Started by shaun |
18 Replies
4197 Views |
![]() by shaun |
![]() |
![]() |
Series heater wiring oddity
Started by Bieworm |
24 Replies
8037 Views |
![]() by sluckey |
![]() |
![]() |
rectifier diodes in AA270 twin
Started by mresistor |
5 Replies
2219 Views |
![]() by pdf64 |
![]() |
![]() |
33 Replies
8598 Views |
![]() by CJ_Audio |
|
![]() |
![]() |
Reverb pans - modern vs vintage
Started by MWaldorf |
3 Replies
1867 Views |
![]() by HotBluePlates |
![]() |
![]() |
9 Replies
5732 Views |
![]() by Nicklsm |
|
![]() |
![]() |
Heaters
Started by davidwpack |
8 Replies
2556 Views |
![]() by davidwpack |
![]() |
![]() |
Old resistor identification
Started by yorgle |
17 Replies
4375 Views |
![]() by PRR |
![]() |
![]() |
Botched 1979 JMP... advice?
Started by Opry Audio « 1 2 » |
64 Replies
10127 Views |
![]() by Opry Audio |
![]() |
![]() |
22 Replies
6802 Views |
![]() by eurekaiv |
|
![]() |
![]() |
5E3 Build-Problems
Started by andy81563 |
4 Replies
1835 Views |
![]() by 6v6Pin1 |
![]() |
![]() |
110V pilot lamp light
Started by Mehfuzhoss |
8 Replies
3155 Views |
![]() by sluckey |
![]() |
![]() |
Heavily Modded Bassman Clone Schematic
Started by wittyjeff |
7 Replies
2656 Views |
![]() by HotBluePlates |
![]() |
![]() |
JCM900 DR100w mods
Started by Opry Audio |
12 Replies
4631 Views |
![]() by pdf64 |
![]() |
![]() |
Tubenit's DeCleanVerb
Started by JustMike |
2 Replies
1714 Views |
![]() by sluckey |
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 |