Welcome To the Hoffman Amplifiers ForumJune 09, 2026, 06:40:21 pm | ||
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1992 peavy mark vi bass amp repair
Started by Snake5150 |
6 Replies
4946 Views |
by glass54 |
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Classic 50 volume reduction
Started by proaudioguy |
3 Replies
4517 Views |
by DeepBias |
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Kagliostro low cut switch
Started by Jonas |
3 Replies
4593 Views |
by Jonas |
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Inductor EQ
Started by hylaphone |
10 Replies
6715 Views |
by hylaphone |
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13 Replies
6683 Views |
by HotBluePlates |
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School me on triode-strapped pentodes
Started by jacobarber |
11 Replies
6359 Views |
by jacobarber |
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Fender Silverface Front Panel
Started by jy67 |
1 Replies
3917 Views |
by dogburn |
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No bias Raw voltage.
Started by TonyM |
5 Replies
4716 Views |
by Merlin |
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What Is this circuit ???
Started by kagliostro |
3 Replies
3621 Views |
by kagliostro |
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1953 pro amp 5C5 circuit
Started by centervolume |
9 Replies
6404 Views |
by HotBluePlates |
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zener diode voltage drop
Started by tubenit |
4 Replies
3039 Views |
by kagliostro |
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Troubleshooting a new build amp
Started by Wardy |
13 Replies
5618 Views |
by Wardy |
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Need opinions on the Stout w/Reverb
Started by sjcasas |
45 Replies
14897 Views |
by dogburn |
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7 Replies
4581 Views |
by Graydigger |
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Deluxe 5E3 tone stack
Started by Lectroid |
15 Replies
6825 Views |
by Lectroid |
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Sovtek MG50H
Started by Ampman33 |
4 Replies
3918 Views |
by Ampman33 |
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22 Replies
6868 Views |
by Trenchard_UK |
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7 Replies
4477 Views |
by Bash |
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Switching cap across plate resistor
Started by Sonny ReVerb |
2 Replies
5006 Views |
by Sonny ReVerb |
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4 Replies
3597 Views |
by mxrshiver |
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4 Replies
3698 Views |
by kagliostro |
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48 Replies
16310 Views |
by tubeswell |
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4 Replies
3488 Views |
by wsscott |
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one-tube-reverbers
Started by Bieworm |
2 Replies
3885 Views |
by tubenit |
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5 Replies
4020 Views |
by Lectroid |
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5879 tube data sheet question
Started by tubenit |
5 Replies
4456 Views |
by DummyLoad |
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192 Replies
45409 Views |
by wsscott |
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Bias Wiggle Tremolo with 7591?
Started by dwinstonwood |
4 Replies
3245 Views |
by dwinstonwood |
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Hiwatt DR103 FX loop
Started by SoundCity85 |
37 Replies
21060 Views |
by wavley |
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3 Replies
3417 Views |
by Bieworm |
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25 Replies
7749 Views |
by Merlin |
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Reverb Tone Shifting with Dwell knob
Started by Lectroid |
14 Replies
5860 Views |
by stratomaster |
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Hum in 5E3
Started by FREYES_7 |
11 Replies
5087 Views |
by mresistor |
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Pre-Amp Anode Voltage Ibanez Thermion
Started by philschl |
3 Replies
2987 Views |
by philschl |
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63 Replies
21883 Views |
by Avraxas |
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What is this, a local NFB ??
Started by kagliostro |
4 Replies
2839 Views |
by kagliostro |
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18 Replies
5619 Views |
by TIMBO |
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Resistor identification
Started by 1Ab |
21 Replies
6659 Views |
by 1Ab |
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5 Replies
3527 Views |
by stratomaster |
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Cathodyne bias problem
Started by scstill |
2 Replies
3000 Views |
by scstill |
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15 Replies
4643 Views |
by Willabe |
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20 Replies
8501 Views |
by tubeswell |
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22 Replies
5059 Views |
by Platefire |
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HR DeVille number two.
Started by Bluebark |
20 Replies
5288 Views |
by Bluebark |
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Sound City 120 is in a bad way
Started by Williamblake |
49 Replies
20277 Views |
by Williamblake |
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12AZ7 as DC Cathode Follower?
Started by dwinstonwood |
3 Replies
2701 Views |
by tubeswell |
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Fender Bassman AC568 issue
Started by retrorod |
8 Replies
3332 Views |
by retrorod |
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Mic Preamp Power Supply Questions
Started by Jonas |
6 Replies
3482 Views |
by Jonas |
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33 Replies
19497 Views |
by tubeswell |
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Bugera 333XL-212 power amp stage problem
Started by Carlito |
6 Replies
3566 Views |
by scstill |
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