Welcome To the Hoffman Amplifiers Forum
March 11, 2026, 04:00:32 pm
Welcome To the Hoffman Amplifiers ForumMarch 11, 2026, 04:00:32 pm | ||
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| dogburn, passaloutre, Glenn and 99 Guests are viewing this board. | ||||
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Troubleshooting AB763
Started by acheld |
4 Replies
3228 Views |
February 07, 2021, 01:38:38 pmby Latole |
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53 Replies
14519 Views |
February 07, 2021, 08:15:42 am by shooter |
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9 Replies
5766 Views |
February 05, 2021, 06:32:12 pm by trobbins |
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E80CC
Started by SoundCity85 |
9 Replies
5440 Views |
February 05, 2021, 09:46:20 am by HotBluePlates |
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Pulling two tubes in a TR
Started by Gone_Fishing |
10 Replies
4332 Views |
February 05, 2021, 09:15:08 am by sluckey |
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EL84 Voltages
Started by dbishopbliss |
4 Replies
3688 Views |
February 04, 2021, 09:40:51 pm by HotBluePlates |
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2 Replies
3171 Views |
February 04, 2021, 08:11:53 pm by MORE_Guitar_Solos |
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4 Replies
3247 Views |
February 04, 2021, 08:10:56 pm by Mike_J |
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5 Replies
3550 Views |
February 04, 2021, 08:02:51 pm by Mike_J |
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5 Replies
3434 Views |
February 04, 2021, 08:01:52 pm by munkeyboy |
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13 Replies
5339 Views |
February 04, 2021, 06:38:07 pm by 2deaf |
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8 Replies
3637 Views |
February 04, 2021, 05:13:30 pm by Gone_Fishing |
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Upgraded turret board.
Started by Mike_J |
0 Replies
2635 Views |
February 04, 2021, 03:39:17 pm by Mike_J |
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10 Replies
4783 Views |
February 04, 2021, 10:54:27 am by 66Strat |
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14 Replies
6275 Views |
February 04, 2021, 08:48:37 am by PharmRock |
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Imperial Stout - new build dummy check
Started by burt_toast |
8 Replies
4332 Views |
February 03, 2021, 04:37:50 pm by tubenit |
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Motorboating on Channel 3 of my amp.
Started by raza |
4 Replies
2966 Views |
February 03, 2021, 12:01:48 pm by Leevi |
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Doug's 5f6a layout for V1a cathode.
Started by Mike_J |
2 Replies
3197 Views |
February 02, 2021, 09:51:15 pm by Mike_J |
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1954 Gibson GA-40 tremolo
Started by Diverted |
12 Replies
6458 Views |
February 02, 2021, 05:45:26 pm by bmccowan |
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Filmosound OT PT Wire Gauge
Started by jonathan_kea |
1 Replies
2734 Views |
February 02, 2021, 12:30:52 pm by HotBluePlates |
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RR763-based build
Started by aon |
4 Replies
4093 Views |
February 02, 2021, 07:37:17 am by jordan86 |
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21 Replies
10407 Views |
January 31, 2021, 12:42:26 pm by chrisd |
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New Build Marshall 1959 Superlead
Started by kwm488 |
12 Replies
9916 Views |
January 31, 2021, 11:59:29 am by sluckey |
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13 Replies
10510 Views |
January 31, 2021, 10:37:36 am by mresistor |
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PP 25L6 amp worth the effort?
Started by munkeyboy |
15 Replies
9984 Views |
January 31, 2021, 08:44:39 am by Steve_P |
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Ampeg B12-XT
Started by Big chief |
4 Replies
3498 Views |
January 30, 2021, 10:26:17 am by Big chief |
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10 Replies
4502 Views |
January 30, 2021, 05:54:34 am by pdf64 |
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National Amp 1949
Started by Big chief |
17 Replies
5327 Views |
January 29, 2021, 05:42:33 pm by valcotone |
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Blowing Fuses Unless I Use A Variac ??
Started by Lectroid |
1 Replies
2830 Views |
January 29, 2021, 02:27:55 pm by tubeswell |
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Loud amp! I need more control.
Started by raza |
5 Replies
3750 Views |
January 29, 2021, 09:09:46 am by SnickSound |
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Bandmaster 6G7A grid stoppers
Started by Diverted |
1 Replies
3179 Views |
January 28, 2021, 05:19:11 pm by sluckey |
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Power Transformer for Sano B18W
Started by eurekaiv |
12 Replies
4457 Views |
January 28, 2021, 03:41:19 pm by shooter |
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Any reason this wouldn't work?
Started by 12AX7 |
24 Replies
9188 Views |
January 28, 2021, 07:10:38 am by Pwurso |
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Ampeg Portaflex B12-XY ?s
Started by waldner |
2 Replies
3126 Views |
January 27, 2021, 10:45:04 pm by waldner |
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Wards GIM 9171A...circuit analysis?
Started by BrianS |
14 Replies
6315 Views |
January 27, 2021, 07:19:35 pm by sluckey |
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Proper 6V6 Bias for 5E3
Started by scstill |
10 Replies
6256 Views |
January 27, 2021, 05:21:39 pm by sluckey |
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Ever Tried A Reverse Bright Cap?
Started by jordan86 |
7 Replies
5292 Views |
January 27, 2021, 11:20:06 am by 2deaf |
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transformer question S-6424
Started by Bieworm |
3 Replies
3646 Views |
January 26, 2021, 01:41:05 pm by SnickSound |
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10 Replies
5343 Views |
January 26, 2021, 12:04:49 pm by tubeswell |
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Cause of high plate voltage on 12ax7
Started by jordan86 |
23 Replies
8272 Views |
January 26, 2021, 09:50:05 am by jordan86 |
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0 Replies
3014 Views |
January 26, 2021, 03:33:38 am by Bieworm |
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Kustom tube amp not working
Started by gdamato |
13 Replies
5824 Views |
January 25, 2021, 09:41:47 pm by gdamato |
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2 Replies
3198 Views |
January 25, 2021, 09:31:11 pm by PRR |
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Dull/snubber caps in preamp
Started by ampnewbie |
3 Replies
4529 Views |
January 25, 2021, 08:43:42 pm by jojokeo |
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Cap replacement question
Started by pbman1953 |
11 Replies
4201 Views |
January 25, 2021, 07:23:45 pm by pbman1953 |
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More AO44 fun
Started by jojokeo |
4 Replies
3404 Views |
January 25, 2021, 07:13:34 pm by jojokeo |
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Trem-O-Nator Poll and projects
Started by sluckey |
29 Replies
11130 Views |
January 25, 2021, 03:53:14 pm by sluckey |
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1969/70 Vibrochamp high note modulation
Started by Voxbox |
7 Replies
4253 Views |
January 25, 2021, 03:28:41 pm by 66Strat |
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1M Gain pot / voltage divider question
Started by Bieworm |
1 Replies
2849 Views |
January 25, 2021, 11:10:23 am by jordan86 |
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Channel switching 2204?
Started by JustMike |
1 Replies
2860 Views |
January 25, 2021, 06:18:41 am by SnickSound |
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