Subject / Started by Replies / Views Last post
11 Replies
3,699 Views
Last post July 14, 2017, 11:12:53 AM
by El Sid
DIY Simple Output Transformer

Started by Mars « 1 2 3 ... 5 »

65 Replies
46,814 Views
Last post August 14, 2018, 11:12:31 PM
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8 Replies
2,844 Views
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by Ampdog
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35 Replies
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Last post July 16, 2018, 01:34:51 AM
by Ampdog
Steinhart Schematic

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17 Replies
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Last post September 28, 2016, 02:51:40 AM
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Valve etiquette and care

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79 Replies
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Last post October 25, 2016, 09:21:30 PM
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What Make Valve?

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24 Replies
5,479 Views
Last post September 01, 2018, 11:10:47 PM
by Cross_over
1 Replies
877 Views
Last post March 22, 2013, 07:57:54 AM
by shrek
"Solid State" Pentodes

Started by Eejit « 1 2 »

16 Replies
2,500 Views
Last post May 06, 2016, 03:21:24 PM
by Ampdog
4 Replies
749 Views
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by Ampdog
14 Replies
1,018 Views
Last post August 24, 2018, 11:43:49 PM
by Ampdog
12au7 tubes

Started by diklip « 1 2 3 4 »

56 Replies
3,021 Views
Last post July 31, 2017, 07:08:26 PM
by JohnnyIC
7 Replies
424 Views
Last post June 27, 2018, 06:07:03 AM
by Scubadude
2 Replies
773 Views
Last post April 20, 2017, 04:10:09 PM
by Mars
5 Replies
1,828 Views
Last post September 18, 2013, 11:41:32 AM
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9 Replies
1,331 Views
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2 Replies
572 Views
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6 Replies
2,844 Views
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by Ampdog
1 Replies
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by Kent Kassler
5687 vs 5687wb

Started by fredeb « 1 2 »

28 Replies
2,753 Views
Last post May 09, 2016, 11:36:43 AM
by fredeb
5C3S vs 5AR4

Started by fredeb « 1 2 »

18 Replies
2,932 Views
Last post October 28, 2016, 06:06:13 PM
by Family_Dog
6 Replies
2,468 Views
Last post November 27, 2012, 04:05:29 AM
by Ampdog

 

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