Welcome To the Hoffman Amplifiers Forum
January 23, 2026, 12:56:30 pm
Welcome To the Hoffman Amplifiers ForumJanuary 23, 2026, 12:56:30 pm | ||
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Bias Checker with Plate Voltage?
Started by Fresh_Start |
14 Replies
10005 Views |
October 05, 2010, 09:31:04 amby Fresh_Start |
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Learning to use Oscilloscope
Started by Fresh_Start |
18 Replies
15734 Views |
October 03, 2010, 11:38:45 am by Fresh_Start |
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6 Replies
7400 Views |
September 29, 2010, 01:15:36 pm by kagliostro |
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5 Replies
5600 Views |
September 28, 2010, 06:08:06 pm by Fresh_Start |
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Okie Tube Holder
Started by eleventeen |
3 Replies
4231 Views |
September 24, 2010, 12:04:18 pm by kagliostro |
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HV scope probe
Started by tubesornothing |
1 Replies
3446 Views |
September 20, 2010, 09:41:28 pm by jjasilli |
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CAD tools - PCB & schematic capture...
Started by DummyLoad |
11 Replies
7081 Views |
September 06, 2010, 04:47:29 pm by escopunk |
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Question about an EICO 667/tube tester
Started by dude |
8 Replies
9584 Views |
August 27, 2010, 09:46:59 pm by PRR |
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Anyone care to to take a shot...?
Started by dude |
8 Replies
5836 Views |
August 27, 2010, 07:46:06 pm by eleventeen |
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Resistors in decade box
Started by Fresh_Start |
5 Replies
5095 Views |
August 18, 2010, 01:49:47 pm by Fresh_Start |
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6 Replies
5688 Views |
August 18, 2010, 07:28:42 am by sigkarl |
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3 Replies
6107 Views |
August 16, 2010, 05:02:30 am by Cygnus_X1 |
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Decade Resistance Box
Started by Fresh_Start |
15 Replies
11713 Views |
August 15, 2010, 10:34:53 am by Fresh_Start |
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0 Replies
3668 Views |
August 13, 2010, 07:14:39 am by EL34 |
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Looking for a reliable bias meter
Started by angushung |
10 Replies
7381 Views |
August 11, 2010, 07:20:34 pm by malt |
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10 Replies
7023 Views |
July 28, 2010, 10:04:32 am by jjasilli |
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0 Replies
3627 Views |
July 25, 2010, 01:11:08 am by eleventeen |
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Cheapo Digital Scope
Started by tubesornothing |
3 Replies
4817 Views |
July 15, 2010, 09:56:14 pm by PRR |
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More Oscilloscope Hell
Started by jjasilli |
8 Replies
6516 Views |
July 14, 2010, 03:37:57 pm by tubesornothing |
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Workbench plan
Started by PRR |
2 Replies
4588 Views |
July 12, 2010, 12:03:18 pm by kagliostro |
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Staco Variable AUTOTRANSFORMER
Started by plexi50 |
11 Replies
7579 Views |
July 08, 2010, 03:07:14 pm by plexi50 |
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Need help in lowering voltage to A/C fan
Started by dude |
6 Replies
6456 Views |
July 06, 2010, 03:08:57 pm by Merlin |
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R.G.'s "A fake guitar for your test bench"
Started by PRR |
2 Replies
4960 Views |
July 06, 2010, 08:23:19 am by jjasilli |
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PC Based Oscilloscope
Started by bbirling |
10 Replies
8583 Views |
June 30, 2010, 01:32:46 pm by bbirling |
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Picked up Old GE Tube Service Case
Started by Platefire |
2 Replies
3955 Views |
June 25, 2010, 08:33:16 am by jjasilli |
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BASIC 'scope -- saved from crusher
Started by PRR |
8 Replies
5979 Views |
June 25, 2010, 01:41:30 am by eleventeen |
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Tektronix 485 scope
Started by mick |
9 Replies
6783 Views |
June 22, 2010, 05:49:07 pm by mick |
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New Good Low Cost Inductor
Started by Justa |
1 Replies
4139 Views |
June 20, 2010, 03:07:38 pm by jjasilli |
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RK/CK sub box
Started by spud |
6 Replies
5913 Views |
May 27, 2010, 05:08:56 pm by RicharD |
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Listening Amplifier
Started by duke of earl |
8 Replies
6722 Views |
May 19, 2010, 11:40:30 pm by RicharD |
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3/8 - 32 tap
Started by stingray_65 |
3 Replies
4131 Views |
May 11, 2010, 10:17:30 am by supro66 |
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MOVED: SE OT
Started by sluckey |
0 Replies
3462 Views |
May 08, 2010, 01:46:26 pm by sluckey |
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1 Replies
4329 Views |
May 05, 2010, 08:21:43 pm by sluckey |
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20 Replies
10509 Views |
April 23, 2010, 11:01:24 am by tubesornothing |
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4 Replies
5088 Views |
April 18, 2010, 05:14:08 pm by soberswede |
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2 Replies
4594 Views |
April 18, 2010, 04:55:09 pm by jimmybjj |
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54 Replies
22047 Views |
April 12, 2010, 07:56:57 pm by sluckey |
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Need help purchasing BASIC oscilloscope.
Started by jimmybjj |
11 Replies
7183 Views |
April 12, 2010, 02:16:47 pm by tubesornothing |
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9 pin bias probe for EL 84`s
Started by punkykatt |
4 Replies
6515 Views |
April 10, 2010, 09:42:11 am by punkykatt |
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tube breadboard - grounding advice sort
Started by andrew_k |
11 Replies
8868 Views |
March 27, 2010, 02:09:15 am by andrew_k |
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Eico 666
Started by stingray_65 |
6 Replies
8411 Views |
March 26, 2010, 08:23:14 am by stingray_65 |
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Audio Testing Software
Started by supro66 |
5 Replies
5897 Views |
March 08, 2010, 10:41:59 pm by HotBluePlates |
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22 Replies
10567 Views |
March 08, 2010, 11:32:26 am by jjasilli |
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Analog Voltmeter?
Started by Fresh_Start |
36 Replies
16108 Views |
March 07, 2010, 08:07:27 am by supro66 |
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Tektronix 515A scope
Started by plexi50 |
44 Replies
17247 Views |
February 28, 2010, 12:57:48 pm by HotBluePlates |
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Gaussmeter and Megohm meter
Started by stingray_65 |
5 Replies
5881 Views |
February 25, 2010, 12:26:53 pm by stingray_65 |
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Component Adhesive....
Started by G._Hoffman |
5 Replies
5313 Views |
February 23, 2010, 09:53:49 pm by DummyLoad |
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some equipment info would be appreciated
Started by el_stu |
6 Replies
5345 Views |
February 11, 2010, 03:38:59 pm by tubesornothing |
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Ampex 351 tube recorder
Started by RicharD |
7 Replies
5795 Views |
February 05, 2010, 07:12:55 pm by RicharD |
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Chassis punching
Started by aro |
10 Replies
7218 Views |
January 29, 2010, 04:32:48 pm by aro |
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