Welcome To the Hoffman Amplifiers Forum
August 29, 2026, 04:59:30 pm
Welcome To the Hoffman Amplifiers ForumAugust 29, 2026, 04:59:30 pm | ||
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Another amp marketing plan idea.
Started by Mike_J |
19 Replies
9334 Views |
February 09, 2021, 06:21:02 amby SnickSound |
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Swap can capacitor for higher value?
Started by proaudioguy |
1 Replies
3973 Views |
February 08, 2021, 05:48:38 pm by bmccowan |
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MOVED: DIY Emission Tube Tester
Started by sluckey |
0 Replies
4848 Views |
February 08, 2021, 11:30:03 am by sluckey |
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Nearly complete 3-channel 5F6A project
Started by CascoSieg |
9 Replies
5649 Views |
February 07, 2021, 05:02:46 pm by CascoSieg |
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Troubleshooting AB763
Started by acheld |
4 Replies
4663 Views |
February 07, 2021, 01:38:38 pm by Latole |
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53 Replies
22090 Views |
February 07, 2021, 08:15:42 am by shooter |
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9 Replies
7523 Views |
February 05, 2021, 06:32:12 pm by trobbins |
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E80CC
Started by SoundCity85 |
9 Replies
7519 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
6169 Views |
February 05, 2021, 09:15:08 am by sluckey |
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EL84 Voltages
Started by dbishopbliss |
4 Replies
5252 Views |
February 04, 2021, 09:40:51 pm by HotBluePlates |
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2 Replies
4605 Views |
February 04, 2021, 08:11:53 pm by MORE_Guitar_Solos |
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4 Replies
4719 Views |
February 04, 2021, 08:10:56 pm by Mike_J |
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5 Replies
5164 Views |
February 04, 2021, 08:02:51 pm by Mike_J |
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5 Replies
4907 Views |
February 04, 2021, 08:01:52 pm by munkeyboy |
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13 Replies
7319 Views |
February 04, 2021, 06:38:07 pm by 2deaf |
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8 Replies
5178 Views |
February 04, 2021, 05:13:30 pm by Gone_Fishing |
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Upgraded turret board.
Started by Mike_J |
0 Replies
4251 Views |
February 04, 2021, 03:39:17 pm by Mike_J |
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10 Replies
6820 Views |
February 04, 2021, 10:54:27 am by 66Strat |
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14 Replies
8663 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
6132 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
4495 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
4821 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
8574 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
4180 Views |
February 02, 2021, 12:30:52 pm by HotBluePlates |
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RR763-based build
Started by aon |
4 Replies
5972 Views |
February 02, 2021, 07:37:17 am by jordan86 |
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21 Replies
13503 Views |
January 31, 2021, 12:42:26 pm by chrisd |
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New Build Marshall 1959 Superlead
Started by kwm488 |
12 Replies
12054 Views |
January 31, 2021, 11:59:29 am by sluckey |
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13 Replies
12803 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
12084 Views |
January 31, 2021, 08:44:39 am by Steve_P |
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Ampeg B12-XT
Started by Big chief |
4 Replies
5080 Views |
January 30, 2021, 10:26:17 am by Big chief |
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10 Replies
6225 Views |
January 30, 2021, 05:54:34 am by pdf64 |
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National Amp 1949
Started by Big chief |
17 Replies
7108 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
4254 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
5670 Views |
January 29, 2021, 09:09:46 am by SnickSound |
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Bandmaster 6G7A grid stoppers
Started by Diverted |
1 Replies
4897 Views |
January 28, 2021, 05:19:11 pm by sluckey |
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Power Transformer for Sano B18W
Started by eurekaiv |
12 Replies
6251 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
12221 Views |
January 28, 2021, 07:10:38 am by Pwurso |
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Ampeg Portaflex B12-XY ?s
Started by waldner |
2 Replies
4754 Views |
January 27, 2021, 10:45:04 pm by waldner |
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Wards GIM 9171A...circuit analysis?
Started by BrianS |
14 Replies
8671 Views |
January 27, 2021, 07:19:35 pm by sluckey |
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Proper 6V6 Bias for 5E3
Started by scstill |
10 Replies
8495 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
7511 Views |
January 27, 2021, 11:20:06 am by 2deaf |
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transformer question S-6424
Started by Bieworm |
3 Replies
5376 Views |
January 26, 2021, 01:41:05 pm by SnickSound |
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10 Replies
7384 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
11769 Views |
January 26, 2021, 09:50:05 am by jordan86 |
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0 Replies
4618 Views |
January 26, 2021, 03:33:38 am by Bieworm |
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Kustom tube amp not working
Started by gdamato |
13 Replies
7712 Views |
January 25, 2021, 09:41:47 pm by gdamato |
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2 Replies
4544 Views |
January 25, 2021, 09:31:11 pm by PRR |
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Dull/snubber caps in preamp
Started by ampnewbie |
3 Replies
6374 Views |
January 25, 2021, 08:43:42 pm by jojokeo |
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Cap replacement question
Started by pbman1953 |
11 Replies
6067 Views |
January 25, 2021, 07:23:45 pm by pbman1953 |
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More AO44 fun
Started by jojokeo |
4 Replies
4834 Views |
January 25, 2021, 07:13:34 pm by jojokeo |
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