Welcome To the Hoffman Amplifiers ForumMarch 12, 2026, 04:32:50 pm | ||
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12 Replies
6958 Views |
by Matty_V |
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Laney, schematics and books.
Started by Lennart |
31 Replies
16011 Views |
by Lennart |
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Hot Rod Deville crackle
Started by Tiny_Daddy |
9 Replies
5932 Views |
by rzenc |
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AB763 with 4x6V6
Started by rzenc |
7 Replies
5970 Views |
by DummyLoad |
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Non Polarized Filter Caps
Started by dpm309 |
16 Replies
7625 Views |
by FYL |
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Doubled triode?
Started by 67polara |
11 Replies
6164 Views |
by tubeswell |
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Blues Jr - cathode bias mod?
Started by bluesbear |
10 Replies
7741 Views |
by John |
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MOVED: which tool ?
Started by tubenit |
0 Replies
3268 Views |
by tubenit |
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Fresh new AB165 build
Started by Danskman |
7 Replies
4747 Views |
by tubeswell |
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Master Volume type 3 help
Started by Megachunk |
13 Replies
8836 Views |
by sluckey |
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NOS Stancor PT ???
Started by zapped |
7 Replies
5796 Views |
by jjasilli |
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Problem biasing for correct voltage
Started by dude |
27 Replies
11334 Views |
by dude |
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Now the noise
Started by Matty_V |
16 Replies
6587 Views |
by dpm309 |
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0 Replies
3244 Views |
by EL34 |
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Help with 2204 please!
Started by Matty_V |
16 Replies
6487 Views |
by Matty_V |
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Carolina SongBird PLUS
Started by tubenit |
1 Replies
3406 Views |
by sdp1234 |
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AC30 Plus Deluxe Reverb
Started by Ed_Chambley |
19 Replies
9753 Views |
by Ed_Chambley |
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5F6A Tweed Bassman Power Transformer
Started by accmeint |
2 Replies
3973 Views |
by eleventeen |
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15 Replies
22422 Views |
by jojokeo |
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voltages on a schematic
Started by dude |
3 Replies
3651 Views |
by stratele52 |
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4 Replies
3802 Views |
by kagliostro |
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PI problem
Started by Matty_V |
12 Replies
5248 Views |
by Matty_V |
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022798 PT Orange Shield Wire
Started by dixiepig |
5 Replies
4411 Views |
by dixiepig |
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Vibro Champ Heater Wiring?
Started by blueznet |
11 Replies
10452 Views |
by xm52 |
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2204 SE done!
Started by Madison |
20 Replies
8397 Views |
by Madison |
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Pot Problem Question
Started by Ed_Chambley |
8 Replies
4329 Views |
by frankeg |
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Pot substitution question
Started by mpayne |
1 Replies
3082 Views |
by PRR |
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jcm 900 slx 50w issues
Started by 961le |
4 Replies
4278 Views |
by 961le |
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eletrolytic radial vs axial
Started by tcoil |
2 Replies
3737 Views |
by PRR |
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Marshall Jubilee tonestack
Started by RobBozic |
2 Replies
3998 Views |
by RobBozic |
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Power Amp Rewire (Plexi Gain 20 )
Started by TIMBO |
2 Replies
3217 Views |
by TIMBO |
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"actual" plate voltage ?
Started by worth |
3 Replies
4136 Views |
by sluckey |
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My Traynor YBA-3A Super seems weaker
Started by pbman1953 |
18 Replies
7804 Views |
by pbman1953 |
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16 Replies
14846 Views |
by kagliostro |
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Boogie 50 Caliber repair
Started by six el six |
13 Replies
7380 Views |
by six el six |
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parallel output tube bias ?
Started by worth |
16 Replies
7409 Views |
by tubeswell |
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5 Replies
3537 Views |
by HotBluePlates |
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transformer damage?
Started by CraigB |
9 Replies
5161 Views |
by CraigB |
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VVR. Entire amp or power section?
Started by Madison |
9 Replies
6082 Views |
by Madison |
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PLEXI GAIN 20 with BUZZ
Started by TIMBO |
18 Replies
6178 Views |
by TIMBO |
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67 Bassman head pin voltages
Started by Craselaw |
19 Replies
10899 Views |
by eleventeen |
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11 Replies
8468 Views |
by HotBluePlates |
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Deluxe Reverb problem?
Started by mresistor |
9 Replies
5050 Views |
by Rev D |
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dialing in your NFB tone
Started by tubenit |
17 Replies
10195 Views |
by PRR |
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power supply help
Started by ernie_jr |
9 Replies
4904 Views |
by PRR |
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3 Replies
6208 Views |
by stingray_65 |
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More headroom
Started by John |
5 Replies
4240 Views |
by HotBluePlates |
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Power Amp in on Marshall 2204?
Started by JustMike |
5 Replies
4279 Views |
by Boots Deville |
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TRRI reverb not working
Started by firemedic |
12 Replies
5492 Views |
by firemedic |
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17 Replies
15461 Views |
by jojokeo |
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