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   Home   Help Search  
Pages: Prev 1 2 3 [4] 5 6 7 8 9 ... 138 Next   Go Down
 
Subject Started by Replies Views Last post
PWRGate schematic equivalents? VE7EA 3 1064 Last post July 13, 2017, 08:53:23 PM
by W6EM
Modifying a li-ion battery charger as a small low voltage DC UPS WA2ISE 5 2505 Last post July 10, 2017, 03:09:07 PM
by WA2ISE
Compact Fluorescent Bulb Ballast becomes QRP B+ Supply? AE7TE 4 1641 Last post July 09, 2017, 01:39:58 PM
by KB1GMX
MPF102 FET transistors « 1 2 » W3TTT 20 7979 Last post July 09, 2017, 09:53:18 AM
by WB8LZR
are salvaged toroids ok to use for low frequencys N4AEQ 14 2267 Last post July 05, 2017, 05:52:14 PM
by KD0REQ
1N4004A substitute? KC8MWG 4 1406 Last post July 05, 2017, 01:50:18 PM
by WA2ISE
Sprectrogram software for Elecraft K2 Filter alignment 4X1KS 3 1462 Last post July 03, 2017, 06:42:20 AM
by N2DTS
Need for cutoff bias vs open circuit KD6NXI 3 1216 Last post July 03, 2017, 04:53:59 AM
by G3RZP
Any way to ID fake MOSFETs? KC8MWG 5 2572 Last post July 01, 2017, 06:27:42 PM
by KC8MWG
Soldering tips « 1 2 » PJ2BVU 15 3049 Last post June 12, 2017, 07:20:42 PM
by WA7PRC
need 14.040 and 14.050 crystals 4X1KS 3 2933 Last post June 05, 2017, 10:21:08 AM
by KB4QAA
Video: Diode mixer LO drive level and effect on conversion loss, distortion, etc W2AEW 2 1987 Last post May 28, 2017, 08:17:10 AM
by DL8OV
How to determine ferrite grade PA4M 8 3327 Last post May 26, 2017, 12:18:43 PM
by KC4ZGP
where to find parts for projects from QRP design notebook, etc. 4X1KS 9 2021 Last post May 26, 2017, 08:46:22 AM
by W1VT
40M 6AQ5 XMTR « 1 2 » N8XI 18 4576 Last post May 19, 2017, 10:15:19 AM
by N8XI
RF choke question « 1 2 » AK0B 15 3327 Last post May 19, 2017, 08:33:46 AM
by K9MB
Building an am/cw tube transmitter « 1 2 » N2RRA 22 8567 Last post May 18, 2017, 10:45:37 PM
by K9MB
solder paste AJ4SN 12 4617 Last post May 17, 2017, 03:43:56 PM
by K9MB
design difference between audio transformer designs and power transformers AK0B 4 1104 Last post May 16, 2017, 11:51:44 AM
by KH6AQ
Hacking Serial Control Alinco DX-SR8 AE8RS 2 1311 Last post May 11, 2017, 04:35:06 PM
by AE8RS
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