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Wow! Bright Filaments. Ed/KB1HYS 20 11142 Last post October 13, 2009, 08:51:26 AM
by N3DRB The Derb
Cooling Power Tubes Ed/KB1HYS 5 4026 Last post August 31, 2006, 11:17:17 PM
by W2XR
Diode Ratings. Ed/KB1HYS 21 10163 Last post August 17, 2008, 06:40:37 AM
by ka3zlr
ZORCH! with photos. Ed/KB1HYS 21 22345 Last post August 04, 2008, 02:30:08 PM
by w4bfs
Air Cooling control. Ed/KB1HYS 5 4310 Last post July 14, 2010, 09:31:12 AM
by K1ZJH
Pad vs Trim? Ed/KB1HYS 4 2825 Last post June 16, 2009, 07:28:22 PM
by w3jn
quick bias question Ed/KB1HYS 11 5349 Last post September 25, 2009, 07:02:19 PM
by KM1H
Modulation Transformer Model #s needed. Ed/KB1HYS 2 2489 Last post October 09, 2009, 08:51:47 PM
by Ed/KB1HYS
Series Modulation ?? Ed/KB1HYS 19 11374 Last post September 06, 2007, 06:02:06 PM
by WA1GFZ
A gentle way to tune your Valiant (and possibly other tube rigs)... Ed/KB1HYS 1 2039 Last post March 06, 2008, 09:15:00 PM
by Jim, W5JO
Troubleshooting 101 Ed/KB1HYS 16 7217 Last post February 05, 2013, 09:15:34 AM
by VE3LYX
Cool Schematics via windoze Paint. Ed/KB1HYS 0 1539 Last post November 20, 2011, 08:17:21 AM
by Ed/KB1HYS
Mod Tranny Zorch. Ed/KB1HYS 15 7028 Last post January 02, 2008, 01:55:52 PM
by Ed/KB1HYS
Drive in G-G Amps. « 1 2 » Ed/KB1HYS 33 12413 Last post March 27, 2010, 08:50:42 AM
by KM1H
Hey Tube Guru's Ed/KB1HYS 15 9109 Last post January 16, 2008, 04:47:18 PM
by k4kyv
a little help with TNT... Ed/KB1HYS 12 4606 Last post November 03, 2010, 06:01:31 PM
by w1vtp
Metal Cutting « 1 2 » Ed/KB1HYS 31 13152 Last post October 26, 2009, 09:46:35 AM
by KL7OF
Electrostatic discharge from a choke? Ed/KB1HYS 8 4894 Last post March 02, 2010, 12:29:35 PM
by The Slab Bacon
Repair of tube base Ed/KB1HYS 5 4186 Last post March 05, 2008, 05:43:38 PM
by WBear2GCR
Neat stuff followed me home. Ed/KB1HYS 12 6611 Last post March 16, 2009, 05:57:47 PM
by Ed/KB1HYS
Receiver Alignment - art or science? Ed/KB1HYS 6 4084 Last post June 15, 2011, 10:29:41 PM
by David, K3TUE
Types of 811's? Ed/KB1HYS 7 4325 Last post February 08, 2009, 09:25:37 PM
by KX5JT
CHALLENGE - SS rig for the AM PW (QRP) net. « 1 2 3 4 5 » Ed/KB1HYS 108 93202 Last post April 18, 2012, 08:00:30 PM
by WA1GFZ
Linear Amp Behaviour « 1 2 » Ed/KB1HYS 40 18520 Last post August 26, 2011, 10:15:51 AM
by KM1H
Design Review « 1 2 » Ed/KB1HYS 39 22798 Last post March 04, 2015, 12:39:02 PM
by W3RSW
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