Welcome To the Hoffman Amplifiers ForumOctober 23, 2025, 11:29:20 pm | ||
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| scstill and 57 Guests are viewing this board. | ||||
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jcm 900 slx 50w issues
Started by 961le |
4 Replies
3336 Views |
by 961le |
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eletrolytic radial vs axial
Started by tcoil |
2 Replies
2726 Views |
by PRR |
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Marshall Jubilee tonestack
Started by RobBozic |
2 Replies
2889 Views |
by RobBozic |
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Power Amp Rewire (Plexi Gain 20 )
Started by TIMBO |
2 Replies
2353 Views |
by TIMBO |
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"actual" plate voltage ?
Started by worth |
3 Replies
3193 Views |
by sluckey |
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My Traynor YBA-3A Super seems weaker
Started by pbman1953 |
18 Replies
6439 Views |
by pbman1953 |
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16 Replies
12828 Views |
by kagliostro |
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Boogie 50 Caliber repair
Started by six el six |
13 Replies
5762 Views |
by six el six |
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parallel output tube bias ?
Started by worth |
16 Replies
5573 Views |
by tubeswell |
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5 Replies
2618 Views |
by HotBluePlates |
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transformer damage?
Started by CraigB |
9 Replies
3882 Views |
by CraigB |
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VVR. Entire amp or power section?
Started by Madison |
9 Replies
4847 Views |
by Madison |
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PLEXI GAIN 20 with BUZZ
Started by TIMBO |
18 Replies
4907 Views |
by TIMBO |
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67 Bassman head pin voltages
Started by Craselaw |
19 Replies
9153 Views |
by eleventeen |
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11 Replies
7001 Views |
by HotBluePlates |
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Deluxe Reverb problem?
Started by mresistor |
9 Replies
4030 Views |
by Rev D |
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dialing in your NFB tone
Started by tubenit |
17 Replies
8721 Views |
by PRR |
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power supply help
Started by ernie_jr |
9 Replies
3807 Views |
by PRR |
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3 Replies
5087 Views |
by stingray_65 |
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More headroom
Started by John |
5 Replies
3032 Views |
by HotBluePlates |
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Power Amp in on Marshall 2204?
Started by JustMike |
5 Replies
3093 Views |
by Boots Deville |
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TRRI reverb not working
Started by firemedic |
12 Replies
4125 Views |
by firemedic |
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17 Replies
13632 Views |
by jojokeo |
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Does this work as an adjustable NFB?
Started by Madison |
8 Replies
4809 Views |
by jjasilli |
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25K - RA POT?
Started by blueznet |
7 Replies
4452 Views |
by OldHouseScott |
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parallel 6V6 5F1 output primary ?
Started by worth |
6 Replies
3813 Views |
by PRR |
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Strange 5F1 build problem
Started by worth |
6 Replies
3262 Views |
by eleventeen |
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Hammond S6 Chord Organ
Started by mresistor |
8 Replies
6232 Views |
by stingray_65 |
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13 Replies
7332 Views |
by LooseChange |
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Tubes for Sound City 120
Started by telenorman |
9 Replies
7641 Views |
by overtone |
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Presence control on 5F4
Started by Ed_Chambley |
9 Replies
5641 Views |
by Ed_Chambley |
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Kent DR-77 cardboard amp
Started by PRR |
19 Replies
8189 Views |
by billcreller |
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Filter caps
Started by J Rindt |
16 Replies
5182 Views |
by catnine |
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Princeton Reverb Problem on a new build
Started by KDakaWalt |
14 Replies
5126 Views |
by tubeswell |
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11 Replies
4470 Views |
by accmeint |
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Schematic Library
Started by LooseChange |
14 Replies
5339 Views |
by EL34 |
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capacitance in series
Started by tubenit |
3 Replies
2698 Views |
by tubeswell |
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23 Replies
7134 Views |
by catnine |
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Which PT to use?
Started by Madison |
13 Replies
5043 Views |
by Madison |
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12 Replies
5765 Views |
by mguitarworks |
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Parallel Front End
Started by TIMBO |
10 Replies
3902 Views |
by TIMBO |
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Tremolux 1964 AB763 ???
Started by plexi50 |
8 Replies
3474 Views |
by jojokeo |
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18 Watt tone control?
Started by jeff |
7 Replies
5616 Views |
by sluckey |
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VOX AC100 resistors
Started by Tiny_Daddy |
4 Replies
3798 Views |
by SoundmasterG |
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current production el34 tubes
Started by duke of earl |
8 Replies
3783 Views |
by SoundmasterG |
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Quick resistor question regarding wattage
Started by navdave |
6 Replies
3065 Views |
by navdave |
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Bassman 135 - Power supply questions
Started by LooseChange |
3 Replies
2691 Views |
by LooseChange |
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5f3 Build Nubie
Started by Ed_Chambley |
15 Replies
6119 Views |
by stingray_65 |
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8 Replies
3640 Views |
by PRR |
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Omega Mods - Fender Hot Rod Deluxe
Started by dpm309 |
2 Replies
8582 Views |
by jim |
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