Welcome To the Hoffman Amplifiers ForumSeptember 06, 2025, 09:54:54 am | ||
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3 Replies
2333 Views |
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wiring a 2203 PT
Started by phsyconoodler |
12 Replies
6471 Views |
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To change or not to change (OT)
Started by Cups |
6 Replies
3084 Views |
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MOVED: Amp Show
Started by EL34 |
0 Replies
1771 Views |
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Bias Pots
Started by Ed_Chambley |
7 Replies
4066 Views |
![]() by EL34 |
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Filter Cap Question
Started by dpm309 |
20 Replies
8387 Views |
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My Little Wing
Started by Boots Deville |
7 Replies
3520 Views |
![]() by zendragon63 |
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23 Replies
10639 Views |
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6 Replies
5874 Views |
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Carolina HummingBird OD
Started by tubenit |
11 Replies
4570 Views |
![]() by TIMBO |
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6J6A Long Tail Phase Inverter.
Started by DummyLoad |
3 Replies
3580 Views |
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Eliminating a gain stage
Started by dude |
6 Replies
3343 Views |
![]() by dude |
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The Twin Biasing Problem
Started by plexi50 |
7 Replies
3168 Views |
![]() by stratele52 |
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Weird Phase inverter...
Started by DummyLoad |
4 Replies
2873 Views |
![]() by rzenc |
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PLEXI GAIN 20 VVR and VOLUME PROBLEM
Started by TIMBO |
7 Replies
2877 Views |
![]() by tubenit |
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Modified Twin Reverb Problem
Started by dpm309 |
19 Replies
5964 Views |
![]() by Willabe |
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3 Replies
2321 Views |
![]() by phsyconoodler |
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4 Replies
2529 Views |
![]() by Frankenamp |
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7 Replies
5161 Views |
![]() by Fresh_Start |
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super champ inside photo
Started by phsyconoodler |
6 Replies
3770 Views |
![]() by LooseChange |
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Line 6 Spider Valve Tube Preamp
Started by JustMike |
2 Replies
2804 Views |
![]() by JustMike |
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3 Replies
2978 Views |
![]() by EL34 |
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Single Ended Layout
Started by spacelabstudio |
19 Replies
6748 Views |
![]() by spacelabstudio |
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RCA SE amp - suppressor grid quandary.
Started by DummyLoad |
7 Replies
3420 Views |
![]() by DummyLoad |
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wiring paralleled triodes
Started by Matty_V |
4 Replies
2518 Views |
![]() by TIMBO |
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VVR, power-scaling question
Started by jeffhorrigan |
20 Replies
7419 Views |
![]() by HotBluePlates |
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17 Replies
11539 Views |
![]() by John |
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Marshall JMP vrs. JCM 800?
Started by rdrgtr |
11 Replies
6982 Views |
![]() by Matty_V |
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MOVED: Capacitor meter/checker
Started by EL34 |
0 Replies
1832 Views |
![]() by EL34 |
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First Post/Traynor YCV40WR
Started by jjackson7 |
12 Replies
5164 Views |
![]() by jjackson7 |
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Rotary Z Selector Switch on BF Fender
Started by J Rindt |
2 Replies
2156 Views |
![]() by J Rindt |
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Transformer Life Span
Started by J Rindt |
7 Replies
3801 Views |
![]() by HotBluePlates |
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YGM-3 PI Values
Started by plexi50 |
8 Replies
4377 Views |
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Marshall clone issue
Started by rdrgtr |
19 Replies
5546 Views |
![]() by rdrgtr |
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4 Replies
4509 Views |
![]() by DummyLoad |
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Any interest in an amp build diary?
Started by SLW |
12 Replies
4398 Views |
![]() by jojokeo |
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Grounding Hoffman 6g15 reverb
Started by chuggy |
3 Replies
3942 Views |
![]() by EL34 |
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Help with EL34 brand Identification
Started by eleventeen |
7 Replies
5073 Views |
![]() by FYL |
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2 Replies
2429 Views |
![]() by Colas LeGrippa |
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AC LINE FILTER [Take 2] -- HOW TO???
Started by jjasilli |
20 Replies
8826 Views |
![]() by jjasilli |
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Marshall 9200/ JMP-1
Started by rzenc |
4 Replies
5257 Views |
![]() by rzenc |
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19 Replies
7082 Views |
![]() by chocopower |
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Traynor YGM? Guitar Mate Reverb
Started by plexi50 |
22 Replies
15040 Views |
![]() by Willabe |
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Zeners and dropping PT voltage
Started by dude |
7 Replies
3879 Views |
![]() by stratele52 |
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Fisher 400 "death cap" + resistor
Started by jjasilli |
2 Replies
4188 Views |
![]() by jjasilli |
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popping noise on OD switch
Started by dude |
11 Replies
4149 Views |
![]() by Shrapnel |
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Twin High (white) Noise
Started by frankeg |
7 Replies
3104 Views |
![]() by frankeg |
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Timbo's tubes and mosfets
Started by tubenit |
5 Replies
3254 Views |
![]() by kagliostro |
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Blackface Vibro Champ mystery cap?
Started by blueznet |
11 Replies
5316 Views |
![]() by jjasilli |
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Intentional impedance mismatch questions
Started by osing |
4 Replies
3612 Views |
![]() by HotBluePlates |
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