Welcome To the Hoffman Amplifiers ForumJanuary 24, 2026, 11:05:49 am | ||
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Bias setting problem
Started by Leevi |
24 Replies
7790 Views |
by whoops |
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bias vs gain flatness
Started by PRR |
1 Replies
2450 Views |
by PRR |
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Old Accordion Tube Amp
Started by drumslinger2000 |
21 Replies
6179 Views |
by drumslinger2000 |
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Biasing questions
Started by 12AX7 |
9 Replies
3897 Views |
by PRR |
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9 Replies
4087 Views |
by guitarsan221 |
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93 Replies
22138 Views |
by Jaymz77 |
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High gain preamp help
Started by dennyg |
6 Replies
3676 Views |
by PRR |
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McIntosh MC250
Started by p2pAmps |
15 Replies
9268 Views |
by p2pAmps |
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Erratic Voltage Readings
Started by jaster55 |
1 Replies
2404 Views |
by sluckey |
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Revibe Build ala sluckey
Started by Blind Lemon |
30 Replies
8227 Views |
by Blind Lemon |
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Conjunctive filter info please?
Started by jojokeo |
46 Replies
28443 Views |
by BetterOffShred |
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4 Replies
4877 Views |
by fiftynine |
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6 Replies
3843 Views |
by 3choplex |
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15 Replies
5605 Views |
by hesamadman |
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Sag Resistor
Started by Ambugaton |
5 Replies
6598 Views |
by eleventeen |
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4 Replies
2898 Views |
by Planobilly |
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Do you think....
Started by 12AX7 |
5 Replies
3545 Views |
by whoops |
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6 Replies
4295 Views |
by HotBluePlates |
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3 Replies
2880 Views |
by tubenit |
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Sunn Model-T/200s Hybrid
Started by BetterOffShred |
20 Replies
9229 Views |
by BetterOffShred |
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smoking amp on standby
Started by jim |
13 Replies
4843 Views |
by jim |
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5 Replies
3019 Views |
by HotBluePlates |
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Amp output issue/question
Started by Redfishbum |
2 Replies
2821 Views |
by Redfishbum |
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5 Replies
3630 Views |
by Planobilly |
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1 Replies
2744 Views |
by sluckey |
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Diode rectifier for Tube...
Started by Oddvar |
4 Replies
2828 Views |
by sluckey |
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Tonebox
Started by Sonny ReVerb |
39 Replies
11084 Views |
by Zarrir |
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1967 Super Reverb Blackface Tranny change?
Started by Oddvar |
5 Replies
3205 Views |
by Oddvar |
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Initial Bias adjustments
Started by jaster55 |
2 Replies
2988 Views |
by HotBluePlates |
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5 Replies
3356 Views |
by kagliostro |
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coupling caps n DC
Started by shooter |
25 Replies
6873 Views |
by shooter |
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AA864 turret board, which one to use?
Started by mozz |
10 Replies
4692 Views |
by EL34 |
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5F2A Little to no noise.
Started by makingnoise88 |
11 Replies
4427 Views |
by makingnoise88 |
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17 Replies
8844 Views |
by pompeiisneaks |
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Temporary rectifier swap
Started by dunner84 |
4 Replies
2713 Views |
by dunner84 |
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6 Replies
3451 Views |
by goldstache |
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17 Replies
11157 Views |
by Ritchie200 |
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2 Replies
3679 Views |
by BetterOffShred |
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Photo of the Deluxe Reverb
Started by Planobilly |
9 Replies
3774 Views |
by TIMBO |
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3 Replies
2662 Views |
by Planobilly |
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12 Replies
3390 Views |
by shooter |
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4 Replies
4003 Views |
by Ed_Chambley |
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Voltage drop and compression
Started by Auke Jolman |
23 Replies
5108 Views |
by pompeiisneaks |
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Is it possible....
Started by 12AX7 |
3 Replies
3167 Views |
by 12AX7 |
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Power Supply Capacitors
Started by upnorth2 |
2 Replies
2591 Views |
by upnorth2 |
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peavey 6505+ head
Started by J Rindt |
4 Replies
3677 Views |
by shooter |
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15 Replies
7641 Views |
by tubenit |
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Grid Leak Resistors
Started by hesamadman |
7 Replies
12420 Views |
by jjasilli |
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Melvin Leibowitz EL84 HiFi?
Started by Zarrir |
4 Replies
3837 Views |
by jjasilli |
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circuit understanding?
Started by shooter |
15 Replies
4069 Views |
by shooter |
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