Welcome To the Hoffman Amplifiers ForumOctober 24, 2025, 03:23:45 am | ||
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Coupling caps
Started by Leevi |
33 Replies
10624 Views |
by sluckey |
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6 Replies
3898 Views |
by Platefire |
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100V output
Started by Leevi |
10 Replies
5951 Views |
by Tiny_Daddy |
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Since we're speaking about Princeton Reverbs
Started by Imntgrumpy « 1 2 » |
56 Replies
18288 Views |
by mojo |
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MOVED: Solitaire KM 201 Transistor
Started by PRR |
0 Replies
3198 Views |
by PRR |
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Vibro champ cutting out at high gain
Started by LaszloS |
12 Replies
6208 Views |
by LaszloS |
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Sunn 2000S schematic and layout
Started by birt |
0 Replies
4491 Views |
by birt |
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AC 30 type help?
Started by jerrydyer |
3 Replies
3014 Views |
by jerrydyer |
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Ampeg V4B values
Started by birt |
2 Replies
3631 Views |
by birt |
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BOSS ROLAND MG 10
Started by Colas LeGrippa |
2 Replies
4040 Views |
by Colas LeGrippa |
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Twisting OPT primary wires
Started by punkykatt |
5 Replies
3853 Views |
by HotBluePlates |
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Anybody built a "Two Stroke" amp?
Started by Madison |
8 Replies
7700 Views |
by tubeswell |
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Ampcabinets
Started by Tiny_Daddy |
4 Replies
3732 Views |
by Tiny_Daddy |
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Sano amplifiers?
Started by StevieRayVehkakoski |
11 Replies
8297 Views |
by StevieRayVehkakoski |
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SD Convertible 100 Board Rebuild
Started by plexi50 |
6 Replies
4147 Views |
by plexi50 |
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14 Replies
6475 Views |
by SirElwood |
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Hum in my 50w amp.
Started by mpayne |
10 Replies
5265 Views |
by Geezer |
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18 Replies
6671 Views |
by dwp |
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Tube bass amp in a combo cab?
Started by dynaman1 |
10 Replies
5256 Views |
by dynaman1 |
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8 Replies
4714 Views |
by HotBluePlates |
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hiss in my new build - ideas??
Started by markmalin |
27 Replies
11744 Views |
by tubeswell |
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Noisey Switches
Started by TIMBO |
4 Replies
3398 Views |
by Shrapnel |
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7 Replies
8615 Views |
by PRR |
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Hiwatt problems
Started by frank57 |
40 Replies
19335 Views |
by frank57 |
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output ohm question?
Started by john_t |
6 Replies
4246 Views |
by HotBluePlates |
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Gibson Lancer GA 35 RVT
Started by plexi50 |
34 Replies
15605 Views |
by plexi50 |
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Crackling EL34s
Started by Madison |
16 Replies
6433 Views |
by Madison |
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"New" design critique needed
Started by TweeDLX |
7 Replies
4237 Views |
by TweeDLX |
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blowing fuses ga 5
Started by john_t |
25 Replies
8289 Views |
by john_t |
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Handwound transformers???
Started by crashtm1 |
10 Replies
5617 Views |
by crashtm1 |
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Need help with noisy Ampeg J-20
Started by mfc_pj |
10 Replies
6727 Views |
by Rich |
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Framus Cobra Head
Started by dpm309 |
5 Replies
5369 Views |
by dpm309 |
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Wiring questions.
Started by tinker |
5 Replies
3937 Views |
by jojokeo |
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Hum in 1978 Vibrolux Reverb
Started by Gene |
22 Replies
9978 Views |
by Gene |
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MASTER VOLUME FOR EACH PAIR
Started by rzenc |
16 Replies
7590 Views |
by rzenc |
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12 Replies
5123 Views |
by tubenit |
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One tube reverb info
Started by TIMBO |
5 Replies
3829 Views |
by tubenit |
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10 Replies
9341 Views |
by HotBluePlates |
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Brain Cell Loss / -ma
Started by plexi50 |
4 Replies
3423 Views |
by plexi50 |
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Marshall pilot lamps
Started by Tiny_Daddy |
9 Replies
4416 Views |
by labb |
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converting 4-EL84 to KT66.
Started by dwp |
5 Replies
5522 Views |
by dwp |
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3 Replies
4370 Views |
by FYL |
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Headphones from speaker jack?
Started by dynaman1 |
5 Replies
4079 Views |
by dynaman1 |
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Sovtek Mig 60
Started by plexi50 |
14 Replies
8360 Views |
by The_Gaz |
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7 Replies
5644 Views |
by jjasilli |
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Fender Concert Blackface plate voltage
Started by chocopower |
3 Replies
4032 Views |
by JayB |
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'69 Marshall Head 6550 to EL34
Started by NannerPuddin |
1 Replies
2837 Views |
by jojokeo |
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voltage tolerance
Started by bnew63 |
17 Replies
6946 Views |
by RicharD |
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3 Replies
3560 Views |
by archaos |
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22 Replies
11926 Views |
by simonallaway |
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