Welcome To the Hoffman Amplifiers Forum
December 08, 2025, 10:03:30 am
Welcome To the Hoffman Amplifiers ForumDecember 08, 2025, 10:03:30 am | ||
| Subject / Started by | Replies / Views | Last post  |
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Crossover distortion on vibrato
Started by Axtman |
2 Replies
2506 Views |
September 19, 2025, 10:04:18 pmby stratomaster |
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Cordovox Conversion
Started by scstill |
15 Replies
5609 Views |
September 19, 2025, 05:21:01 pm by scstill |
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Remove vibrato (tremolo) on Normal Channel
Started by Axtman |
4 Replies
2365 Views |
September 19, 2025, 12:03:10 pm by Axtman |
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4 Replies
2348 Views |
September 18, 2025, 09:54:19 am by Lectroid |
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1992 peavy mark vi bass amp repair
Started by Snake5150 |
6 Replies
2864 Views |
September 17, 2025, 11:14:01 pm by glass54 |
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Classic 50 volume reduction
Started by proaudioguy |
3 Replies
2486 Views |
September 17, 2025, 08:15:19 pm by DeepBias |
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Kagliostro low cut switch
Started by Jonas |
3 Replies
2428 Views |
September 16, 2025, 04:03:09 pm by Jonas |
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Inductor EQ
Started by hylaphone |
10 Replies
3952 Views |
September 16, 2025, 01:59:10 pm by hylaphone |
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13 Replies
3890 Views |
September 16, 2025, 12:09:23 pm by HotBluePlates |
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School me on triode-strapped pentodes
Started by jacobarber |
11 Replies
3357 Views |
September 15, 2025, 02:20:05 pm by jacobarber |
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Fender Silverface Front Panel
Started by jy67 |
1 Replies
1895 Views |
September 15, 2025, 09:31:50 am by dogburn |
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No bias Raw voltage.
Started by TonyM |
5 Replies
2545 Views |
September 15, 2025, 04:55:24 am by Merlin |
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What Is this circuit ???
Started by kagliostro |
3 Replies
1873 Views |
September 15, 2025, 12:58:25 am by kagliostro |
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1953 pro amp 5C5 circuit
Started by centervolume |
9 Replies
3379 Views |
September 14, 2025, 06:52:54 pm by HotBluePlates |
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zener diode voltage drop
Started by tubenit |
4 Replies
1641 Views |
September 14, 2025, 04:01:22 pm by kagliostro |
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Troubleshooting a new build amp
Started by Wardy |
13 Replies
3360 Views |
September 14, 2025, 01:27:45 pm by Wardy |
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Need opinions on the Stout w/Reverb
Started by sjcasas |
45 Replies
9625 Views |
September 13, 2025, 08:45:46 pm by dogburn |
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7 Replies
2486 Views |
September 13, 2025, 01:34:01 pm by Graydigger |
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Deluxe 5E3 tone stack
Started by Lectroid |
15 Replies
3856 Views |
September 13, 2025, 12:29:59 pm by Lectroid |
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Sovtek MG50H
Started by Ampman33 |
4 Replies
1644 Views |
September 13, 2025, 12:01:22 pm by Ampman33 |
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22 Replies
4194 Views |
September 12, 2025, 02:13:18 pm by Trenchard_UK |
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7 Replies
2061 Views |
September 12, 2025, 12:20:54 pm by Bash |
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Switching cap across plate resistor
Started by Sonny ReVerb |
2 Replies
1697 Views |
September 12, 2025, 06:58:43 am by Sonny ReVerb |
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4 Replies
1616 Views |
September 11, 2025, 05:06:09 pm by mxrshiver |
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4 Replies
1643 Views |
September 10, 2025, 06:13:05 am by kagliostro |
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48 Replies
10604 Views |
September 10, 2025, 04:12:11 am by tubeswell |
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4 Replies
1464 Views |
September 09, 2025, 11:36:10 am by wsscott |
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one-tube-reverbers
Started by Bieworm |
2 Replies
1407 Views |
September 09, 2025, 04:57:07 am by tubenit |
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5 Replies
1932 Views |
September 07, 2025, 01:54:48 pm by Lectroid |
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5879 tube data sheet question
Started by tubenit |
5 Replies
2158 Views |
September 06, 2025, 12:31:01 pm by DummyLoad |
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192 Replies
31502 Views |
September 05, 2025, 02:58:10 pm by wsscott |
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Bias Wiggle Tremolo with 7591?
Started by dwinstonwood |
4 Replies
1532 Views |
September 04, 2025, 12:49:55 pm by dwinstonwood |
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Hiwatt DR103 FX loop
Started by SoundCity85 |
37 Replies
13924 Views |
September 03, 2025, 03:43:24 pm by wavley |
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3 Replies
1621 Views |
September 03, 2025, 11:35:42 am by Bieworm |
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25 Replies
4033 Views |
September 02, 2025, 06:20:08 am by Merlin |
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Reverb Tone Shifting with Dwell knob
Started by Lectroid |
14 Replies
3447 Views |
September 01, 2025, 02:48:23 pm by stratomaster |
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Hum in 5E3
Started by FREYES_7 |
11 Replies
2380 Views |
September 01, 2025, 02:33:58 pm by mresistor |
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Pre-Amp Anode Voltage Ibanez Thermion
Started by philschl |
3 Replies
1264 Views |
September 01, 2025, 06:14:17 am by philschl |
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63 Replies
15187 Views |
September 01, 2025, 01:52:26 am by Avraxas |
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19 Replies
2656 Views |
September 01, 2025, 01:25:45 am by Grantorino |
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What is this, a local NFB ??
Started by kagliostro |
4 Replies
1156 Views |
August 31, 2025, 10:40:26 am by kagliostro |
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18 Replies
3205 Views |
August 30, 2025, 08:26:31 pm by TIMBO |
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Resistor identification
Started by 1Ab |
21 Replies
3655 Views |
August 30, 2025, 01:30:46 pm by 1Ab |
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5 Replies
1647 Views |
August 29, 2025, 10:20:06 pm by stratomaster |
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Cathodyne bias problem
Started by scstill |
2 Replies
1111 Views |
August 28, 2025, 05:04:06 pm by scstill |
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15 Replies
2435 Views |
August 28, 2025, 09:41:21 am by Willabe |
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20 Replies
5317 Views |
August 28, 2025, 03:33:36 am by tubeswell |
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22 Replies
2610 Views |
August 27, 2025, 01:24:10 pm by Platefire |
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HR DeVille number two.
Started by Bluebark |
20 Replies
2739 Views |
August 27, 2025, 09:11:53 am by Bluebark |
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Sound City 120 is in a bad way
Started by Williamblake |
49 Replies
15529 Views |
August 26, 2025, 02:56:11 pm by Williamblake |
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