Welcome To the Hoffman Amplifiers ForumDecember 09, 2025, 08:39:30 am | ||
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6 Replies
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by Fresh_Start |
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4 Replies
3346 Views |
by Geezer |
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11 Replies
11397 Views |
by FYL |
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Doug's custom board progam rocks
Started by ernie_jr |
3 Replies
2792 Views |
by EL34 |
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Chunky switch
Started by PRR |
2 Replies
2711 Views |
by kagliostro |
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Hammond organ OT question
Started by bigsbybender |
2 Replies
3814 Views |
by bigsbybender |
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What power transformer would work?
Started by theundeadelvis |
12 Replies
6218 Views |
by theundeadelvis |
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Hello....1st question regarding PI
Started by 12AX7 |
9 Replies
5925 Views |
by 12AX7 |
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0 Replies
3078 Views |
by Ryteone |
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VVR and PPIMV - Yay or Nay
Started by theundeadelvis |
5 Replies
5554 Views |
by Willabe |
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1 Replies
2410 Views |
by sluckey |
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tweaking a '59 RI Bassman LTD
Started by tubeswell |
1 Replies
3037 Views |
by sluckey |
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Need some help with debugging an amp
Started by G._Hoffman |
9 Replies
4048 Views |
by LooseChange |
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3 Replies
3928 Views |
by kagliostro |
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Marshall class 5
Started by Leevi |
0 Replies
3068 Views |
by Leevi |
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paralleled SE output tubes
Started by Colas LeGrippa |
3 Replies
3189 Views |
by stratele52 |
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Grid leak on KT88
Started by LooseChange |
7 Replies
5313 Views |
by ernie_jr |
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My PT is dead but reads fine. WTF?
Started by Baguette |
9 Replies
4067 Views |
by Baguette |
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Tremolo Ckt in Silvertone 1344
Started by mrm0to |
2 Replies
3381 Views |
by mrm0to |
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ampeg home brew
Started by ernie_jr |
0 Replies
2551 Views |
by ernie_jr |
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Silver Jubilee Hum
Started by plexi50 |
2 Replies
2797 Views |
by plexi50 |
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5 Replies
5240 Views |
by Jennings |
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NHAD!! (New homebrew amp day)
Started by Danskman |
18 Replies
6449 Views |
by Madison |
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6 Replies
5145 Views |
by bruno |
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B+ Connection JTM 45
Started by Ed_Chambley |
5 Replies
4124 Views |
by sluckey |
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Capacitor Value?
Started by plexi50 |
5 Replies
3244 Views |
by stratele52 |
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6 Replies
3873 Views |
by gldtp99 |
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63 vibroverb cabinet dimensions
Started by phsyconoodler |
3 Replies
6511 Views |
by FYL |
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Extension Cabinet
Started by rosenfeld88 |
1 Replies
2376 Views |
by PRR |
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3 Replies
2575 Views |
by RicharD |
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5E3 troubles
Started by Madison |
2 Replies
2816 Views |
by Madison |
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Strange noise Fender Bassman AB165
Started by dude |
5 Replies
4067 Views |
by dude |
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11 Replies
5450 Views |
by HotBluePlates |
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BF Vibrochamp
Started by six el six |
5 Replies
3348 Views |
by HotBluePlates |
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9 Replies
4311 Views |
by HotBluePlates |
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7 Replies
3593 Views |
by HotBluePlates |
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5 Replies
5450 Views |
by kagliostro |
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Question about DC filament supply (Madison)
Started by gmoon |
19 Replies
10386 Views |
by HotBluePlates |
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Replacing Filter caps
Started by pbman1953 |
10 Replies
4511 Views |
by pbman1953 |
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Pinto Bean
Started by RicharD |
6 Replies
3461 Views |
by RicharD |
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jtm 45 negative voltage v2
Started by Ed_Chambley |
7 Replies
3872 Views |
by Ed_Chambley |
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Heathkit A-9c
Started by DummyLoad |
8 Replies
8902 Views |
by DummyLoad |
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6 Replies
4449 Views |
by stingray_65 |
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Extra preamp stage a good idea here?
Started by panhead |
4 Replies
2907 Views |
by panhead |
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Is This The Right Tube
Started by blown240 |
6 Replies
3662 Views |
by firemedic |
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What Do I Have Here?
Started by blown240 |
2 Replies
2493 Views |
by labb |
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Volume Pot Testing
Started by blown240 |
6 Replies
3243 Views |
by stratele52 |
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6MB8 vs. 6BM8
Started by tubenit |
7 Replies
6548 Views |
by tubenit |
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SE 30W AUDIO TRANSFORMER
Started by Colas LeGrippa |
5 Replies
3587 Views |
by kagliostro |
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Hall VVR3 and JTM 45
Started by Ed_Chambley |
7 Replies
5536 Views |
by FYL |
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