Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 08:09:26 am | ||
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Haven't done anything to this Zenith
Started by frankenxtein |
5 Replies
3903 Views |
by frankenxtein |
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Russian substitute for 12AT7
Started by isaac_teller |
2 Replies
3716 Views |
by isaac_teller |
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Hammond Rebuild Layout Advice
Started by jordan86 |
3 Replies
2890 Views |
by glass54 |
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Magnatone Varsity Reverb
Started by luthiernc |
1 Replies
2761 Views |
by tubeswell |
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Raising the 1M resistor on the input.
Started by valvetones |
7 Replies
3871 Views |
by pdf64 |
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Is this idea crazy? What would you do?
Started by Diverted |
6 Replies
3467 Views |
by PRR |
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22 Replies
7131 Views |
by sluckey |
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Diodes for 1970 Twin Reverb
Started by bbmade |
2 Replies
3075 Views |
by bbmade |
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1 Replies
2801 Views |
by sluckey |
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Steel guitar tube input preamp
Started by Swampertech |
2 Replies
2903 Views |
by Swampertech |
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24 Replies
6706 Views |
by shooter |
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Preamp out help
Started by joesatch |
7 Replies
3239 Views |
by nandrewjackson |
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Old Topic , Channel Switching
Started by HighFlyingV |
4 Replies
3425 Views |
by HighFlyingV |
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JTM45 Radiospares Impedance selector
Started by jrgtwo |
7 Replies
4007 Views |
by jrgtwo |
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Fender champ 12 messup
Started by Kesi from Hungary |
10 Replies
5069 Views |
by Kesi from Hungary |
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6 Replies
3771 Views |
by JustTheDad |
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How to add NFB to 18 Watt Stout Reverb
Started by waldner |
15 Replies
4633 Views |
by waldner |
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PT wiring question / confirmation
Started by Bieworm |
3 Replies
2962 Views |
by sluckey |
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Really cheap pilot lamp !
Started by uki |
16 Replies
5777 Views |
by owen |
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Minimum dropping resistors?
Started by joesatch |
27 Replies
6826 Views |
by tubeswell |
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Gibson GA-8 1962 Discoverer
Started by vampwizzard |
12 Replies
5939 Views |
by vampwizzard |
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18 Replies
5875 Views |
by scstill |
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4 band EQ schematic??
Started by hesamadman |
26 Replies
17857 Views |
by kagliostro |
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New DR project sanity check?
Started by Lectroid |
17 Replies
5490 Views |
by pdf64 |
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3 Replies
3145 Views |
by ebulakowski |
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Masco tweak
Started by Diverted |
14 Replies
6745 Views |
by sluckey |
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Bassman 5F6A fun Build
Started by p2pAmps |
0 Replies
3128 Views |
by p2pAmps |
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11 Replies
6078 Views |
by walkman |
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harmonic vibrato questions
Started by uki |
20 Replies
5724 Views |
by shooter |
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NFB circuit help
Started by joesatch |
4 Replies
2891 Views |
by nandrewjackson |
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Splitting channels
Started by Diverted |
1 Replies
2519 Views |
by d95err |
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Help with AS-05T200 PT rectification
Started by joesatch |
4 Replies
2951 Views |
by joesatch |
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5K primary for EL34s
Started by dude |
2 Replies
2961 Views |
by dude |
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Electrolytic Capacitor Value
Started by plexi50 |
2 Replies
2787 Views |
by plexi50 |
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3 Replies
3289 Views |
by PRR |
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DC heater help
Started by joesatch |
9 Replies
4391 Views |
by thetragichero |
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Hum can be really trick sometimes!!
Started by uki |
0 Replies
2709 Views |
by uki |
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Lamp limiter- nada
Started by mrhudson27 |
4 Replies
3487 Views |
by Keppy |
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Trainwreck Rocket 120hz Hum
Started by kendalosborne |
18 Replies
8021 Views |
by pdf64 |
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3 Replies
3260 Views |
by sluckey |
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1 Replies
2602 Views |
by Keppy |
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What happened to the Death Ray?
Started by PRR |
19 Replies
6073 Views |
by 66Strat |
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Gibson EH-185 Layout
Started by reddead83 |
15 Replies
9636 Views |
by kagliostro |
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31 Replies
10588 Views |
by shooter |
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Why this resistor value?
Started by Lectroid |
3 Replies
2849 Views |
by Lectroid |
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20 Replies
8429 Views |
by nandrewjackson |
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Laney AOR
Started by Stuff4bikes |
1 Replies
2964 Views |
by Stuff4bikes |
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EH Date Codes?
Started by vintasonic |
6 Replies
4914 Views |
by vintasonic |
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9 Replies
5185 Views |
by Fraggy0117 |
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Bias Capacitor Question
Started by plumcrazyfx |
14 Replies
7184 Views |
by pdf64 |
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