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MARS THUNDERBIRD MOBILE TRANSMITTER K9EID 19 1123 Last post January 18, 2019, 12:45:29 PM
by K9EID
simple tube VFO with mixer PA0NVD 17 780 Last post January 17, 2019, 10:35:01 PM
by Opcom
TACO ALL WAVE FILTER wb1ead 3 344 Last post January 16, 2019, 08:13:33 PM
by kb2vxa
813 Amplfiier Project and Filament Transformer « 1 2 » n4joy 32 1534 Last post January 16, 2019, 02:35:02 PM
by n4joy
Driver Transformer W9ZSL 18 924 Last post January 15, 2019, 05:37:40 PM
by Opcom
B&W 2500 Keying Problem KD6VXI 6 467 Last post January 14, 2019, 10:25:06 PM
by K9EID
Heathkit SB401 AM conversion K8DI 4 427 Last post January 13, 2019, 01:31:57 PM
by WD5JKO
3 phase to single phase larger transmitters KL7OF 10 667 Last post January 11, 2019, 07:13:55 PM
by W7TFO
2 tube oscillator and buffer circuit W4RFM 4 364 Last post January 11, 2019, 11:09:11 AM
by W9ZSL
Cellular PVC Electrical Insulation Characteristics? AJ1G 8 451 Last post January 09, 2019, 08:19:21 PM
by PA0NVD
Looking for source of 10Ga Silicon Power Cords WA2SQQ 7 452 Last post January 09, 2019, 07:14:27 AM
by WA2SQQ
heater to cathode leakage w4bfs 2 227 Last post January 08, 2019, 01:22:19 PM
by N1BCG
Heathkit SB-220 Load Capacitor Issue-SOLVED w3khg 1 243 Last post January 07, 2019, 08:27:22 PM
by w3khg
3-500Z's-SOLVED w3khg 4 301 Last post January 07, 2019, 07:57:37 PM
by KD6VXI
Switching B+ -- how to do it safely? K8DI 8 408 Last post January 07, 2019, 06:11:36 PM
by KK4YY
What is this? W5UF 1 216 Last post January 07, 2019, 02:41:25 PM
by KC2ZFA
RF Choke question W4RFM 14 861 Last post January 06, 2019, 01:54:58 PM
by W4RFM
Know Ur R-390A Mod1 IF strips?? WBear2GCR 1 206 Last post January 06, 2019, 12:41:58 PM
by WD8KDG
LOG (Loop On Ground) Antenna WA2SQQ 11 1439 Last post January 06, 2019, 10:44:32 AM
by Steve - K4HX
The RCA "807 in Special Triode Connection" gets a new life. With Sweep Tubes! « 1 2 3 » KK4YY 62 3916 Last post January 06, 2019, 12:13:42 AM
by KK4YY
Pi Network Inductor question W4RFM 3 244 Last post January 05, 2019, 05:49:08 PM
by W4RFM
Pre Made Digital VFO??? Carl WA1KPD 4 420 Last post January 04, 2019, 03:06:53 PM
by KD6VXI
R-390A Carrier Level Meter reading? WBear2GCR 3 295 Last post January 04, 2019, 09:18:58 AM
by WBear2GCR
Drake R-4C WB4YVO 6 478 Last post January 03, 2019, 10:18:14 AM
by WA5VGO
5 Watts with one tube WA4WAX 6 535 Last post January 02, 2019, 09:20:33 PM
by WA4WAX
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