Welcome To the Hoffman Amplifiers Forum
March 10, 2026, 02:00:51 pm
Welcome To the Hoffman Amplifiers ForumMarch 10, 2026, 02:00:51 pm | ||
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| 0 Members and 39 Guests are viewing this board. | ||||
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$4 Resistance Substitution Box (SMC)
Started by 22uf |
0 Replies
2769 Views |
May 20, 2021, 04:47:59 amby 22uf |
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3 Replies
4136 Views |
May 18, 2021, 03:33:33 am by Latole |
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Just got a Fluke 77IV
Started by dbishopbliss |
4 Replies
3650 Views |
May 14, 2021, 05:03:54 pm by sluckey |
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PSU Designer II on Mac!
Started by dbishopbliss |
2 Replies
8065 Views |
April 27, 2021, 10:04:32 pm by dbishopbliss |
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Westinghouse TV4A/U tube tester
Started by Beezerboy |
9 Replies
5378 Views |
March 31, 2021, 04:49:51 pm by Beezerboy |
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Sluckey's Amp Cradle
Started by mk_716 |
11 Replies
7002 Views |
March 27, 2021, 03:16:42 am by Latole |
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Variac purchase
Started by makjoh |
3 Replies
3842 Views |
March 26, 2021, 02:30:56 am by Latole |
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Mini breadboard.
Started by pullshocks |
1 Replies
3838 Views |
March 22, 2021, 09:23:11 am by acheld |
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Spectrum Analyzers
Started by sll |
0 Replies
3220 Views |
March 08, 2021, 09:32:06 pm by sll |
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8 Replies
4449 Views |
February 26, 2021, 07:09:57 pm by martinomma |
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New tool added.
Started by Mike_J |
0 Replies
2671 Views |
February 22, 2021, 08:14:22 am by Mike_J |
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8 Replies
4864 Views |
February 14, 2021, 01:10:12 am by thetragichero |
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DIY Emission Tube Tester
Started by francisco |
11 Replies
13688 Views |
February 08, 2021, 11:20:58 am by slowboy2012 |
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3 Replies
3980 Views |
February 08, 2021, 07:21:11 am by EL34 |
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6 Replies
4004 Views |
February 06, 2021, 06:44:52 pm by sluckey |
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Capacitor meter kit .sparkfun..be a geek
Started by Tom_Hull |
2 Replies
3266 Views |
February 03, 2021, 02:36:24 pm by Eulipian |
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82 Replies
32132 Views |
January 02, 2021, 07:27:24 pm by shooter |
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Anti-vibration mounting do it yourself
Started by kagliostro |
13 Replies
6828 Views |
December 25, 2020, 03:21:14 pm by DummyLoad |
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Free stuff from uncle
Started by Bieworm |
27 Replies
10912 Views |
December 23, 2020, 12:15:02 pm by PRR |
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How to find max peak plate voltage?
Started by Miyagi_83 |
8 Replies
5628 Views |
December 17, 2020, 10:52:43 am by Miyagi_83 |
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Variac Question
Started by Jatchley |
4 Replies
3673 Views |
December 10, 2020, 09:16:23 am by sluckey |
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6 Replies
7801 Views |
December 02, 2020, 11:13:53 am by sluckey |
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Isolation transformer question
Started by yorgle |
1 Replies
3508 Views |
November 24, 2020, 10:10:52 am by sluckey |
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10 Replies
5309 Views |
November 23, 2020, 10:12:05 am by DummyLoad |
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Solder Sucker vs Wick on 3DPT PCB
Started by jordan86 |
10 Replies
6009 Views |
November 19, 2020, 09:15:29 am by Willabe |
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1 Replies
3261 Views |
November 15, 2020, 07:02:22 am by EL34 |
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7 Replies
4581 Views |
October 30, 2020, 12:17:58 pm by Sansteeth |
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IEC punch
Started by Sonny ReVerb |
6 Replies
13310 Views |
October 12, 2020, 08:10:08 pm by DummyLoad |
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BF Deluxe Transformers
Started by jordan86 |
8 Replies
4846 Views |
October 05, 2020, 10:53:18 pm by HotBluePlates |
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8 Replies
8330 Views |
October 02, 2020, 02:12:42 pm by PRR |
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Voltages on vintage tube amps
Started by VintageAmps |
4 Replies
4046 Views |
September 26, 2020, 05:33:56 am by Latole |
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Mystery variac wiring
Started by Joe P |
7 Replies
5868 Views |
September 11, 2020, 05:14:41 pm by Williamblake |
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Redneck signal generator
Started by mresistor |
6 Replies
4710 Views |
September 11, 2020, 01:50:11 am by DummyLoad |
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Hickok Tester Help needed
Started by shaun |
11 Replies
5632 Views |
September 08, 2020, 04:20:50 pm by shaun |
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DIY Tube tester by Grant Willis
Started by rayandkerry |
11 Replies
17691 Views |
August 22, 2020, 08:49:11 pm by HotBluePlates |
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23 Replies
19992 Views |
August 22, 2020, 12:19:00 pm by HotBluePlates |
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Advice on using a GM tube tester
Started by mrr3000gt |
12 Replies
8537 Views |
August 22, 2020, 09:36:31 am by HotBluePlates |
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Adjustable bias range?
Started by hcorneli |
20 Replies
9886 Views |
August 21, 2020, 06:59:26 pm by HotBluePlates |
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Free Ampeg screws
Started by luthierwnc |
0 Replies
3196 Views |
August 15, 2020, 11:42:47 am by luthierwnc |
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PCB Repair Methods/Tips
Started by jordan86 |
8 Replies
4751 Views |
August 09, 2020, 06:28:42 am by John |
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Ammeter in conjunction with variac
Started by capn_starsky |
8 Replies
6127 Views |
June 28, 2020, 07:26:46 pm by Soulfetish |
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5 Replies
4788 Views |
June 18, 2020, 01:36:03 pm by PRR |
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Importance of Voltage Drop?
Started by jordan86 |
6 Replies
5854 Views |
June 10, 2020, 07:23:00 pm by sluckey |
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5 Replies
4088 Views |
May 31, 2020, 01:53:17 pm by Crestone |
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45 Replies
26652 Views |
May 22, 2020, 10:13:17 am by Sonny ReVerb |
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Light bulb limiter behavior
Started by jordan86 |
16 Replies
14477 Views |
May 12, 2020, 08:47:22 am by Latole |
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0 Replies
2746 Views |
April 24, 2020, 05:17:48 am by kagliostro |
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De soldering tool
Started by Willabe |
4 Replies
3846 Views |
April 15, 2020, 06:24:47 pm by shooter |
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issues with meter
Started by dude |
9 Replies
5251 Views |
March 26, 2020, 05:43:47 am by Latole |
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Drilling through eyelet boards
Started by lljsullins |
5 Replies
4235 Views |
March 22, 2020, 11:24:42 pm by Soulfetish |
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