Welcome To the Hoffman Amplifiers ForumDecember 09, 2025, 05:31:38 am | ||
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44 Replies
13023 Views |
by guntherbuffalo |
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2 Replies
2144 Views |
by tubenit |
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hum on stand-by
Started by Leevi |
35 Replies
9533 Views |
by Leevi |
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ELECTRO-HARMONIX B9 ORGAN MACHINE
Started by EL34 |
0 Replies
2037 Views |
by EL34 |
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Common / Ground connection to chassis
Started by tompagan123 |
9 Replies
6497 Views |
by Mike_J |
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4 Replies
2992 Views |
by jojokeo |
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I'm sure this will be a stupid question.
Started by Rp3703 |
16 Replies
5505 Views |
by jjasilli |
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0 Replies
1953 Views |
by frank57 |
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0 Replies
1945 Views |
by EL34 |
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Hammond Amp Conversion
Started by TIMBO |
0 Replies
2380 Views |
by TIMBO |
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Has anyone built a Weber Maggie?
Started by Guitarzan |
13 Replies
7014 Views |
by Guitarzan |
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0 Replies
1946 Views |
by EL34 |
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Grid stopper question
Started by g-man |
22 Replies
8939 Views |
by HotBluePlates |
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Noisy Start Up
Started by Blind Lemon |
6 Replies
3144 Views |
by jojokeo |
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Twin reverb 1974 reserection
Started by Auke Jolman |
27 Replies
9103 Views |
by Auke Jolman |
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deluxe reverb build hum
Started by rutledj |
9 Replies
3531 Views |
by Willabe |
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IN4007 diodes shorted out
Started by TIMBO |
4 Replies
2520 Views |
by TIMBO |
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6 Replies
3055 Views |
by kagliostro |
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Pre amp/ amp
Started by jeff |
14 Replies
4798 Views |
by jeff |
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epiphone valve jr
Started by moondog2u |
8 Replies
3941 Views |
by Blind Lemon |
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Stereo tube amp
Started by Leevi |
5 Replies
2619 Views |
by shooter |
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tip request! handy size bias resistors
Started by bakerlite |
2 Replies
2226 Views |
by eleventeen |
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Rectifying 2 uneven HT
Started by guntherbuffalo |
10 Replies
4023 Views |
by guntherbuffalo |
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PCB repairs
Started by jim |
10 Replies
3870 Views |
by G._Hoffman |
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Hoffman Plexi 50 questions
Started by circuitcrafter |
16 Replies
5481 Views |
by circuitcrafter |
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5B4 Circuit build. Resistor question.
Started by olgoat |
9 Replies
3479 Views |
by olgoat |
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good clean fun...
Started by DummyLoad |
7 Replies
4027 Views |
by kagliostro |
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170 Replies
54414 Views |
by Voxbox |
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Problems with a Pro
Started by Blind Lemon |
23 Replies
6601 Views |
by Platefire |
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el84 red screening? NOT red plating(spiral)
Started by jeff |
12 Replies
5429 Views |
by jeff |
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marshall 2203 800v on B+
Started by jcm-jmp |
9 Replies
6014 Views |
by jcm-jmp |
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Alamo Jet Reverb 2564 (and Trem)
Started by Blind Lemon |
4 Replies
4142 Views |
by Blind Lemon |
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0 Replies
1828 Views |
by EL34 |
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Salvaging a 5c3 "Frankenstein" amp
Started by apwwest59 |
39 Replies
9389 Views |
by PRR |
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PPIMV with switch?
Started by AZJimC |
4 Replies
3084 Views |
by kagliostro |
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AB763 trem disconnect
Started by osing |
5 Replies
3207 Views |
by osing |
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got transformers! What should i build?
Started by mikhett |
6 Replies
2675 Views |
by DummyLoad |
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Circuit Question
Started by sdp1234 |
5 Replies
2617 Views |
by sdp1234 |
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Fender brownface hiss
Started by g-man |
10 Replies
3823 Views |
by AZJimC |
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4 Replies
3696 Views |
by tubeswell |
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7 Replies
4002 Views |
by bakerlite |
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2 Replies
2946 Views |
by HotBluePlates |
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JTM45 build help - no preamp heaters
Started by klarsen01 |
4 Replies
2644 Views |
by DummyLoad |
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0 Replies
2070 Views |
by Willabe |
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20 Replies
5087 Views |
by shooter |
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Rattling power tubes
Started by Leevi |
8 Replies
3355 Views |
by jeff |
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10 Replies
3653 Views |
by kagliostro |
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New project - 2204-ish 2x6V6s
Started by Ken Moon |
2 Replies
2276 Views |
by TIMBO |
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RCA EF86 Says England
Started by Ed_Chambley |
3 Replies
2669 Views |
by HotBluePlates |
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New build n questions
Started by shooter |
6 Replies
2516 Views |
by shooter |
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