Welcome To the Hoffman Amplifiers ForumApril 26, 2026, 11:06:29 am | ||
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Hum in SVT power amp
Started by Mark |
6 Replies
4811 Views |
by Ritchie200 |
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20 Replies
8699 Views |
by sluckey |
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Princeton Reverb Tremelo tweaking
Started by Toxophilite |
1 Replies
3227 Views |
by Toxophilite |
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AO-39 to Spitfire Variant conversion
Started by vampwizzard |
23 Replies
10337 Views |
by vampwizzard |
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V1 A and V1 B?
Started by Rockranger |
7 Replies
5061 Views |
by Rockranger |
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champ transformer for 5e3
Started by Masterwaiter |
2 Replies
3958 Views |
by Masterwaiter |
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2 Replies
3760 Views |
by chriscwill07 |
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1 Replies
4454 Views |
by jjasilli |
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16 Replies
10941 Views |
by jjasilli |
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13 Replies
6529 Views |
by Colas LeGrippa |
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6 Replies
5554 Views |
by shooter |
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Bassman 5f6a Attenuator light bulbs
Started by Willisamps |
3 Replies
4323 Views |
by jjasilli |
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"Stout" gain hiss and hum.
Started by Tapsnap |
1 Replies
3542 Views |
by Tapsnap |
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5 Replies
5410 Views |
by PRR |
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10 Replies
7878 Views |
by turbofeedus |
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5 Replies
8261 Views |
by byoungblood |
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Sunn 200S feedback
Started by mresistor |
7 Replies
7215 Views |
by Willabe |
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THd Yellow Jackets schematic
Started by jgriff123 |
36 Replies
18674 Views |
by sluckey |
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Heater wiring for a Silvertone 1482
Started by dbishopbliss |
11 Replies
7930 Views |
by sluckey |
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Hammond AO-43 for 5E3 build
Started by g-man |
7 Replies
5296 Views |
by dude |
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6v6 superbass ongoing project
Started by sith |
12 Replies
6476 Views |
by jazjamr |
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Hoffman AB763 SR tremolo thump
Started by mresistor |
3 Replies
4105 Views |
by mresistor |
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10 Replies
6131 Views |
by PRR |
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Bias Supply Source
Started by mwelch55 |
15 Replies
8662 Views |
by jjasilli |
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"breadboarding" amps?
Started by toomanyslurpees |
28 Replies
19546 Views |
by 1blueheron |
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Variable resistor symbol in schematic?
Started by Papa Jim |
2 Replies
4063 Views |
by Papa Jim |
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3 Replies
4060 Views |
by kagliostro |
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0 Replies
3339 Views |
by nandrewjackson |
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67 princeton reverb hum
Started by peteys123 |
2 Replies
3773 Views |
by peteys123 |
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Lacing up the turrets
Started by Tbone55 |
10 Replies
7374 Views |
by Tbone55 |
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15 Replies
10626 Views |
by jjasilli |
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5 Replies
6493 Views |
by jojokeo |
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Post cathode follower Dual Eq's
Started by nandrewjackson |
8 Replies
5616 Views |
by nandrewjackson |
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Blues Junior Schematics
Started by Apprentice |
4 Replies
11386 Views |
by Apprentice |
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24 Replies
11264 Views |
by 1blueheron |
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Pre-Amp tube specs
Started by dearborndave |
2 Replies
3645 Views |
by dearborndave |
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18 Replies
9634 Views |
by PRR |
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Impedance question
Started by Leevi |
3 Replies
3660 Views |
by Leevi |
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Dual Showman 4x12 combo
Started by clayman |
1 Replies
3394 Views |
by sluckey |
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Marshall Dual Reverb 4100 amp question
Started by mresistor |
17 Replies
7812 Views |
by mresistor |
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Blues Jr. Output Transformer Upgrade
Started by dearborndave |
4 Replies
5626 Views |
by dearborndave |
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Bass Amp eating power tubes, remedies?
Started by Jonas |
14 Replies
7629 Views |
by Ritchie200 |
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7591 Build.
Started by 8wattjack |
15 Replies
12975 Views |
by sluckey |
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hookup for switch
Started by davidwpack |
4 Replies
4211 Views |
by davidwpack |
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Volume Knob Thump
Started by JKRamsey1991 |
9 Replies
6464 Views |
by pdf64 |
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1 Replies
3919 Views |
by alathIN |
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4 Replies
5554 Views |
by mechtonia |
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8 Replies
6168 Views |
by PRR |
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275-0- 275 PT WITH DIODE RECTIFIER
Started by mikhett |
2 Replies
4016 Views |
by mikhett |
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6g16 Clone
Started by 8wattjack |
3 Replies
4055 Views |
by Glenn |
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