Welcome To the Hoffman Amplifiers ForumApril 28, 2026, 02:13:18 am | ||
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Weird Phase inverter...
Started by DummyLoad |
4 Replies
4334 Views |
by rzenc |
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PLEXI GAIN 20 VVR and VOLUME PROBLEM
Started by TIMBO |
7 Replies
4546 Views |
by tubenit |
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Modified Twin Reverb Problem
Started by dpm309 |
19 Replies
8319 Views |
by Willabe |
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3 Replies
3861 Views |
by phsyconoodler |
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4 Replies
3763 Views |
by Frankenamp |
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7 Replies
6933 Views |
by Fresh_Start |
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super champ inside photo
Started by phsyconoodler |
6 Replies
5325 Views |
by LooseChange |
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Line 6 Spider Valve Tube Preamp
Started by JustMike |
2 Replies
4234 Views |
by JustMike |
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3 Replies
4665 Views |
by EL34 |
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Single Ended Layout
Started by spacelabstudio |
19 Replies
9636 Views |
by spacelabstudio |
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RCA SE amp - suppressor grid quandary.
Started by DummyLoad |
7 Replies
5339 Views |
by DummyLoad |
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wiring paralleled triodes
Started by Matty_V |
4 Replies
3793 Views |
by TIMBO |
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VVR, power-scaling question
Started by jeffhorrigan |
20 Replies
9777 Views |
by HotBluePlates |
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17 Replies
14250 Views |
by John |
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Marshall JMP vrs. JCM 800?
Started by rdrgtr |
11 Replies
9040 Views |
by Matty_V |
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MOVED: Capacitor meter/checker
Started by EL34 |
0 Replies
3403 Views |
by EL34 |
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First Post/Traynor YCV40WR
Started by jjackson7 |
12 Replies
6998 Views |
by jjackson7 |
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Rotary Z Selector Switch on BF Fender
Started by J Rindt |
2 Replies
3437 Views |
by J Rindt |
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Transformer Life Span
Started by J Rindt |
7 Replies
5722 Views |
by HotBluePlates |
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YGM-3 PI Values
Started by plexi50 |
8 Replies
6011 Views |
by plexi50 |
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Marshall clone issue
Started by rdrgtr |
19 Replies
7611 Views |
by rdrgtr |
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4 Replies
6204 Views |
by DummyLoad |
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Any interest in an amp build diary?
Started by SLW |
12 Replies
6358 Views |
by jojokeo |
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Grounding Hoffman 6g15 reverb
Started by chuggy |
3 Replies
5161 Views |
by EL34 |
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Help with EL34 brand Identification
Started by eleventeen |
7 Replies
6985 Views |
by FYL |
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2 Replies
3810 Views |
by Colas LeGrippa |
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AC LINE FILTER [Take 2] -- HOW TO???
Started by jjasilli |
20 Replies
12045 Views |
by jjasilli |
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Marshall 9200/ JMP-1
Started by rzenc |
4 Replies
7274 Views |
by rzenc |
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19 Replies
10735 Views |
by chocopower |
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Traynor YGM? Guitar Mate Reverb
Started by plexi50 |
22 Replies
17694 Views |
by Willabe |
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Zeners and dropping PT voltage
Started by dude |
7 Replies
5437 Views |
by stratele52 |
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Fisher 400 "death cap" + resistor
Started by jjasilli |
2 Replies
5850 Views |
by jjasilli |
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popping noise on OD switch
Started by dude |
11 Replies
6034 Views |
by Shrapnel |
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Twin High (white) Noise
Started by frankeg |
7 Replies
4636 Views |
by frankeg |
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Timbo's tubes and mosfets
Started by tubenit |
5 Replies
4740 Views |
by kagliostro |
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Blackface Vibro Champ mystery cap?
Started by blueznet |
11 Replies
7327 Views |
by jjasilli |
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Intentional impedance mismatch questions
Started by osing |
4 Replies
5436 Views |
by HotBluePlates |
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Transformers PT vs OT
Started by Ed_Chambley |
3 Replies
3664 Views |
by FYL |
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Fender RI Reverb hand wired conversion kit?
Started by chuggy |
1 Replies
3705 Views |
by sluckey |
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12 Replies
7301 Views |
by Matty_V |
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Laney, schematics and books.
Started by Lennart |
31 Replies
16776 Views |
by Lennart |
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Hot Rod Deville crackle
Started by Tiny_Daddy |
9 Replies
6317 Views |
by rzenc |
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AB763 with 4x6V6
Started by rzenc |
7 Replies
6313 Views |
by DummyLoad |
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Non Polarized Filter Caps
Started by dpm309 |
16 Replies
8057 Views |
by FYL |
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Doubled triode?
Started by 67polara |
11 Replies
6577 Views |
by tubeswell |
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Blues Jr - cathode bias mod?
Started by bluesbear |
10 Replies
8170 Views |
by John |
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MOVED: which tool ?
Started by tubenit |
0 Replies
3582 Views |
by tubenit |
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Fresh new AB165 build
Started by Danskman |
7 Replies
5162 Views |
by tubeswell |
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Master Volume type 3 help
Started by Megachunk |
13 Replies
9495 Views |
by sluckey |
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NOS Stancor PT ???
Started by zapped |
7 Replies
6558 Views |
by jjasilli |
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