Welcome To the Hoffman Amplifiers ForumSeptember 06, 2025, 09:51:34 am | ||
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alternate EF86 pentode?
Started by phsyconoodler |
17 Replies
21434 Views |
![]() by phsyconoodler |
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Bassman 5F6A low voltage on V1 and V2
Started by Throstur |
4 Replies
3743 Views |
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24 Replies
7564 Views |
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12 Replies
5137 Views |
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Any thoughts on white Mallory 150's?
Started by bluesbear |
17 Replies
8642 Views |
![]() by FYL |
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Champ Silverface
Started by Leevi |
10 Replies
4475 Views |
![]() by bigdaddy |
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Identifying a choke
Started by simonallaway |
2 Replies
2612 Views |
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14 Replies
7035 Views |
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4 Replies
3048 Views |
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3 Replies
2276 Views |
![]() by RicharD |
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Bogner Ubershall
Started by jcm-jmp |
4 Replies
2642 Views |
![]() by jcm-jmp |
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5879 voltages
Started by phsyconoodler |
6 Replies
3920 Views |
![]() by SoundmasterG |
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7 Replies
3402 Views |
![]() by DummyLoad |
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18w, too much sag
Started by Matty_V |
6 Replies
3620 Views |
![]() by Matty_V |
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Volume boost
Started by macula56 |
18 Replies
5921 Views |
![]() by Tone Junkie |
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Marshall 20 Watt on the bench...pics
Started by TubeGeek |
21 Replies
8084 Views |
![]() by EL34 |
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Preamp VVR bypass tips
Started by moonbird |
2 Replies
2512 Views |
![]() by moonbird |
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Traynor Bassmate yba-2a amp porn
Started by TubeGeek |
9 Replies
5921 Views |
![]() by plexi50 |
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5 Replies
2589 Views |
![]() by EL34 |
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0 Replies
1890 Views |
![]() by EL34 |
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Fixed Bias Equation
Started by plexi50 |
21 Replies
10186 Views |
![]() by plexi50 |
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5 Replies
2739 Views |
![]() by VMS |
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10 Replies
8471 Views |
![]() by kagliostro |
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Allen Accomplice Static
Started by Platefire |
6 Replies
3434 Views |
![]() by Platefire |
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made a big mistake, can anyone help?
Started by bakerlite |
8 Replies
3919 Views |
![]() by Willabe |
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25 Replies
17829 Views |
![]() by PRR |
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0 Replies
2051 Views |
![]() by tubenit |
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5 Replies
3199 Views |
![]() by frank57 |
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Pentode/triode tubes
Started by firemedic |
23 Replies
14671 Views |
![]() by Fresh_Start |
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Magnatone 421 Tremelo & Vibrato Issue
Started by plexi50 |
13 Replies
5972 Views |
![]() by plexi50 |
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Peavy heritage vtx amp conversion?
Started by tubenit |
10 Replies
5314 Views |
![]() by PRR |
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33 Replies
12191 Views |
![]() by jjasilli |
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erm, 380v to pin 1 of a 12ax7?
Started by bakerlite |
6 Replies
3376 Views |
![]() by PRR |
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Bassman AB165
Started by punkykatt |
8 Replies
6131 Views |
![]() by punkykatt |
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Best Fender hiss-fighting tips?
Started by eleventeen |
2 Replies
2430 Views |
![]() by eleventeen |
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MOVED: Building a relay switching circuit
Started by EL34 |
0 Replies
1823 Views |
![]() by EL34 |
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0 Replies
2086 Views |
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MOVED: Struggles with old liquid tin
Started by EL34 |
0 Replies
1894 Views |
![]() by EL34 |
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MOVED: Unknow speaker. Power handling
Started by EL34 |
0 Replies
1902 Views |
![]() by EL34 |
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Fender Twin on the bench with bad hiss.
Started by bbirling |
1 Replies
2646 Views |
![]() by EL34 |
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Hoffman AB763 [missing .02 cap?]
Started by Raybob |
2 Replies
2273 Views |
![]() by EL34 |
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Combined SS/Tube bridge rectifier
Started by Leevi |
2 Replies
2571 Views |
![]() by Leevi |
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switch instead of pot
Started by Leevi |
10 Replies
3779 Views |
![]() by tubeswell |
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2 Replies
2084 Views |
![]() by kagliostro |
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Where to next?
Started by Matty_V |
21 Replies
6510 Views |
![]() by ncusack |
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Marking Tubes
Started by tubesornothing |
6 Replies
2915 Views |
![]() by jeff |
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SUNN OT compatability question
Started by nateflanigan |
20 Replies
6497 Views |
![]() by Ritchie200 |
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Traynor DarkHorse 15H Tonestacks
Started by Boots Deville |
5 Replies
4920 Views |
![]() by HotBluePlates |
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ROCKOLA AMP FIND!
Started by plexi50 |
19 Replies
6575 Views |
![]() by plexi50 |
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3 Replies
2341 Views |
![]() by Tone Junkie |
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