Welcome To the Hoffman Amplifiers ForumOctober 22, 2025, 12:20:28 pm | ||
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1961 6g13 - Resistor values off...
Started by bullkelp |
8 Replies
3292 Views |
![]() by HotBluePlates |
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Hoffman Stout TMB Hum Issue
Started by coltojt |
8 Replies
3477 Views |
![]() by tubeswell |
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3 Replies
2418 Views |
![]() by LoudonMiller |
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Reverb issues on princeton build
Started by rutledj |
39 Replies
8756 Views |
![]() by rutledj |
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30 Replies
7095 Views |
![]() by pbman1953 |
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Bass PreAmp
Started by tubenit |
35 Replies
15975 Views |
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NEW Bass Pre-amp Build HPF/Compressor
Started by Wardy |
24 Replies
9075 Views |
![]() by Wardy |
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Alamo Capri 2360 Model 1960-1 & Schematic
Started by plexi50 |
9 Replies
4028 Views |
![]() by plexi50 |
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14 Replies
8727 Views |
![]() by passaloutre |
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Adding gain stage
Started by Wonder2121 |
11 Replies
3867 Views |
![]() by pdf64 |
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Crossover distortion on vibrato
Started by Axtman |
2 Replies
2250 Views |
![]() by stratomaster |
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Cordovox Conversion
Started by scstill |
15 Replies
5258 Views |
![]() by scstill |
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Remove vibrato (tremolo) on Normal Channel
Started by Axtman |
4 Replies
2197 Views |
![]() by Axtman |
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4 Replies
2091 Views |
![]() by Lectroid |
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1992 peavy mark vi bass amp repair
Started by Snake5150 |
6 Replies
2653 Views |
![]() by glass54 |
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Classic 50 volume reduction
Started by proaudioguy |
3 Replies
2285 Views |
![]() by DeepBias |
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Kagliostro low cut switch
Started by Jonas |
3 Replies
2185 Views |
![]() by Jonas |
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Inductor EQ
Started by hylaphone |
10 Replies
3499 Views |
![]() by hylaphone |
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13 Replies
3505 Views |
![]() by HotBluePlates |
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School me on triode-strapped pentodes
Started by jacobarber |
11 Replies
3003 Views |
![]() by jacobarber |
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Fender Silverface Front Panel
Started by jy67 |
1 Replies
1689 Views |
![]() by dogburn |
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No bias Raw voltage.
Started by TonyM |
5 Replies
2268 Views |
![]() by Merlin |
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What Is this circuit ???
Started by kagliostro |
3 Replies
1733 Views |
![]() by kagliostro |
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Hum and Buzz in Cordovox Build
Started by scstill |
35 Replies
7491 Views |
![]() by scstill |
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1953 pro amp 5C5 circuit
Started by centervolume |
9 Replies
2875 Views |
![]() by HotBluePlates |
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zener diode voltage drop
Started by tubenit |
4 Replies
1551 Views |
![]() by kagliostro |
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Troubleshooting a new build amp
Started by Wardy |
13 Replies
3055 Views |
![]() by Wardy |
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Need opinions on the Stout w/Reverb
Started by sjcasas |
45 Replies
8695 Views |
![]() by dogburn |
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7 Replies
2250 Views |
![]() by Graydigger |
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Deluxe 5E3 tone stack
Started by Lectroid |
15 Replies
3387 Views |
![]() by Lectroid |
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Sovtek MG50H
Started by Ampman33 |
4 Replies
1376 Views |
![]() by Ampman33 |
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22 Replies
3813 Views |
![]() by Trenchard_UK |
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7 Replies
1766 Views |
![]() by Bash |
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Switching cap across plate resistor
Started by Sonny ReVerb |
2 Replies
1355 Views |
![]() by Sonny ReVerb |
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4 Replies
1417 Views |
![]() by mxrshiver |
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4 Replies
1421 Views |
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48 Replies
9600 Views |
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4 Replies
1271 Views |
![]() by wsscott |
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one-tube-reverbers
Started by Bieworm |
2 Replies
1238 Views |
![]() by tubenit |
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5 Replies
1672 Views |
![]() by Lectroid |
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5879 tube data sheet question
Started by tubenit |
5 Replies
1872 Views |
![]() by DummyLoad |
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192 Replies
29300 Views |
![]() by wsscott |
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Bias Wiggle Tremolo with 7591?
Started by dwinstonwood |
4 Replies
1356 Views |
![]() by dwinstonwood |
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Hiwatt DR103 FX loop
Started by SoundCity85 |
37 Replies
12547 Views |
![]() by wavley |
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3 Replies
1408 Views |
![]() by Bieworm |
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25 Replies
3471 Views |
![]() by Merlin |
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Reverb Tone Shifting with Dwell knob
Started by Lectroid |
14 Replies
3130 Views |
![]() by stratomaster |
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Hum in 5E3
Started by FREYES_7 |
11 Replies
2064 Views |
![]() by mresistor |
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Pre-Amp Anode Voltage Ibanez Thermion
Started by philschl |
3 Replies
1114 Views |
![]() by philschl |
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63 Replies
14130 Views |
![]() by Avraxas |
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