Welcome To the Hoffman Amplifiers ForumMarch 12, 2026, 04:32:53 pm | ||
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To change or not to change (OT)
Started by Cups |
6 Replies
4203 Views |
by sluckey |
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MOVED: Amp Show
Started by EL34 |
0 Replies
2699 Views |
by EL34 |
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Bias Pots
Started by Ed_Chambley |
7 Replies
5444 Views |
by EL34 |
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Filter Cap Question
Started by dpm309 |
20 Replies
10923 Views |
by dpm309 |
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My Little Wing
Started by Boots Deville |
7 Replies
4673 Views |
by zendragon63 |
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23 Replies
12594 Views |
by SleepLess |
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6 Replies
7133 Views |
by kagliostro |
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Carolina HummingBird OD
Started by tubenit |
11 Replies
5970 Views |
by TIMBO |
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6J6A Long Tail Phase Inverter.
Started by DummyLoad |
3 Replies
4611 Views |
by DummyLoad |
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Eliminating a gain stage
Started by dude |
6 Replies
4401 Views |
by dude |
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The Twin Biasing Problem
Started by plexi50 |
7 Replies
4465 Views |
by stratele52 |
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Weird Phase inverter...
Started by DummyLoad |
4 Replies
4004 Views |
by rzenc |
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PLEXI GAIN 20 VVR and VOLUME PROBLEM
Started by TIMBO |
7 Replies
4196 Views |
by tubenit |
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Modified Twin Reverb Problem
Started by dpm309 |
19 Replies
7827 Views |
by Willabe |
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3 Replies
3534 Views |
by phsyconoodler |
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4 Replies
3475 Views |
by Frankenamp |
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7 Replies
6530 Views |
by Fresh_Start |
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super champ inside photo
Started by phsyconoodler |
6 Replies
4968 Views |
by LooseChange |
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Line 6 Spider Valve Tube Preamp
Started by JustMike |
2 Replies
3938 Views |
by JustMike |
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3 Replies
4298 Views |
by EL34 |
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Single Ended Layout
Started by spacelabstudio |
19 Replies
8957 Views |
by spacelabstudio |
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RCA SE amp - suppressor grid quandary.
Started by DummyLoad |
7 Replies
4935 Views |
by DummyLoad |
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wiring paralleled triodes
Started by Matty_V |
4 Replies
3498 Views |
by TIMBO |
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VVR, power-scaling question
Started by jeffhorrigan |
20 Replies
9275 Views |
by HotBluePlates |
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17 Replies
13731 Views |
by John |
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Marshall JMP vrs. JCM 800?
Started by rdrgtr |
11 Replies
8640 Views |
by Matty_V |
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MOVED: Capacitor meter/checker
Started by EL34 |
0 Replies
3083 Views |
by EL34 |
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First Post/Traynor YCV40WR
Started by jjackson7 |
12 Replies
6648 Views |
by jjackson7 |
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Rotary Z Selector Switch on BF Fender
Started by J Rindt |
2 Replies
3136 Views |
by J Rindt |
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Transformer Life Span
Started by J Rindt |
7 Replies
5342 Views |
by HotBluePlates |
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YGM-3 PI Values
Started by plexi50 |
8 Replies
5667 Views |
by plexi50 |
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Marshall clone issue
Started by rdrgtr |
19 Replies
7237 Views |
by rdrgtr |
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4 Replies
5881 Views |
by DummyLoad |
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Any interest in an amp build diary?
Started by SLW |
12 Replies
5928 Views |
by jojokeo |
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Grounding Hoffman 6g15 reverb
Started by chuggy |
3 Replies
4866 Views |
by EL34 |
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Help with EL34 brand Identification
Started by eleventeen |
7 Replies
6587 Views |
by FYL |
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2 Replies
3474 Views |
by Colas LeGrippa |
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AC LINE FILTER [Take 2] -- HOW TO???
Started by jjasilli |
20 Replies
11536 Views |
by jjasilli |
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Marshall 9200/ JMP-1
Started by rzenc |
4 Replies
6860 Views |
by rzenc |
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19 Replies
10074 Views |
by chocopower |
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Traynor YGM? Guitar Mate Reverb
Started by plexi50 |
22 Replies
17099 Views |
by Willabe |
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Zeners and dropping PT voltage
Started by dude |
7 Replies
5050 Views |
by stratele52 |
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Fisher 400 "death cap" + resistor
Started by jjasilli |
2 Replies
5482 Views |
by jjasilli |
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popping noise on OD switch
Started by dude |
11 Replies
5643 Views |
by Shrapnel |
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Twin High (white) Noise
Started by frankeg |
7 Replies
4309 Views |
by frankeg |
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Timbo's tubes and mosfets
Started by tubenit |
5 Replies
4357 Views |
by kagliostro |
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Blackface Vibro Champ mystery cap?
Started by blueznet |
11 Replies
6894 Views |
by jjasilli |
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Intentional impedance mismatch questions
Started by osing |
4 Replies
5062 Views |
by HotBluePlates |
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Transformers PT vs OT
Started by Ed_Chambley |
3 Replies
3370 Views |
by FYL |
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Fender RI Reverb hand wired conversion kit?
Started by chuggy |
1 Replies
3409 Views |
by sluckey |
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