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KD1JVRock-Mite Audio Filter
https://www.qsl.net/n0rc/rm/builder_notes/rmaf/rmaf.html
KD1JV Rock-Mite Audio Filter. builder: Rod N0RC builder caution, mount C2-5 last. NOTE in this photo (and the larger one) R2/R3 and R5/R6 are mounted in the wrong posistions R2/R3 must be swaped around, same goes for R5/R6, per QRP-L …
KD1JV Tri-Bander CW transceiver - Pacific Antenna
https://qrpkits.com/tribander.html
600 Hz audio filter Audio derived AGC Small size, 6" wide, 1.5" tall and 4" deep. Light weight, 12 ounces. Modest supply current requirements, 90 ma on receive (no signal) and 600 to 800 ma on transmit at 5W out (current depends on band, higher bands draw more current)
Rock-Mite 20m Transceiver - OZ1BXM
http://www.oz1bxm.dk/30-60/30-60-rock-mite.htm
The KD1JV audio filter. The Rock-Mite files it a useful homepage for Rock-Mite info and ideas. The Rock-Mite even has its own Yahoo group. Keyer . I substituted the default keyer IC with a PicoKeyer-RM, which is an electronic keyer with two message memories containing each …
the "Rock-Mite" files - QSL.net
https://www.qsl.net/n0rc/rm/
KD1JV's Limited Edition "Melt Solder" kits for the QRPer, see "Rock Mite Audio Filter" link. (was originally known as AAPB) Jackson Harbor Press offers an alternative keyer chip for the "Rock-Mite". Here is a Yahoo discussion Group just for Rock-Mite enthusiasts--Doug, WA0VSL "rc", kc5wa, documents the building of his Rock-Mite
HiMite-15 - W5USJ
http://w5usj.com/himite.html
The KD1JV audio filter board is shown mounted on a standoff and is in place to check for interference. All OK! HiMite-15 Z-Match: Single-band Z-Match built specifically for the HiMite-15. The enclosure is an LMB CR-321, Mouser PN 537-CR-321. Capacitors are 220 pF total similar to those used in the BLT. Coil is wound on a T68-6 with 16 turns #22.
QRP - Weebly
http://k1oa.weebly.com/qrp.html
K1OA QRP Projects. After the Rockmite 40 I built a New England QRP Club NEScaf audio filter, also mounted in an Altoids tin. My first QRP kit was the Rockmite 40, single frequency, 1/2 watt transceiver. First time I applied power and hooked it up to my 2-element 40m beam I got a 599 report from Arizona! Next project was an ATS-3B, a KD1JV ...
Atlanticon 2003 QRP Forum - Recap
https://www.midnightdesignsolutions.com/atlanticon/atlanticon%202003/Atlanticon2003recap.html
RockMite Audio Filters (2) (Steve Weber, KD1JV) SW-40+ Kit & Controls (Dave Benson, Small Wonder Labs) RockMite Kit & Enclosure (Dave Benson, Small Wonder Labs) NorCal Capacitor Kit (Doug Hendricks, KI6DS, NorCal) NorCal SMK-1 Kit (Doug Hendricks, KI6DS, NorCal)
The 'ROCK-MITE-20' a Simple Transceiver
http://www.radiomanual.info/schemi/Vari/Rock-Mite-20_user.pdf
RockMite operation: The RockMite-20 operates on approximately 14060 Khz. The microcontroller provides a 'shift' signal to the Local Oscillator. This signal changes state upon key-down and key-up and provides roughly 700 Hz of frequency shift. The RockMite contains a built-in Iambic Keyer. Dot and Dash inputs are not firmware-reversible but may ...
K4ICY's SW+40 QRP Transceiver
http://k4icy.com/cw_qrp_sw40.html
Audio filter is not really necessary since the tone is only present on PK+ menu selections. • 04/11/12 - Added a 1.5 Mega Ohm resistor from pin 3 of the PicoKeyer-Plus chip to circuit ground. There was a initial key-down and activation of the transmitter upon the rig's power-up that would last a split second.
Colin M1BUU's radio stuff: 2012
https://m1buu.blogspot.com/2012/
The kit is a little audio filter for CW. Ondra had designed the filter for his own use I believe, but quite a few people showed an interest, so a kit was put together and was made available at HamShop Cz. The kits sold out pretty quickly, but I was lucky enough to buy one before they had all gone.
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