CW 80M QRP 3-PACK FOR HAM RADIO TRANSMITTERS (HC49/S CRYSTALS)

Description

YOU ARE PURCHASING ONE LOT OF THREE 80 METER CRYSTALS IN USED FT-241 STYLE HOLDERS. ONE EACH, 3550, 3560 AND 3580 KHZ FUNDAMENTAL FREQUENCIES. THESE HAVE THE SMALL, LOW POWER VERSION OF THE HC49 CRYSTALS (HC49/S).
THE FT-243 HOLDERS ARE GETTING HARD TO COME BY AND MORE EXPENSIVE. SINCE THE FT-241'S ARE VIRTUALLY IDENTICAL AND LESS COSTLY TO BUY I CAN OFFER THESE AT A REDUCED PRICE COMPARED TO THE FT-243'S. THE FT-241'S AND FT-243'S WILL FIT THE SAME CRYSTAL SOCKET.
I SIMPLY REMOVE THE OLD OUT OF BAND MILITARY CRYSTAL ELEMENT AND SOLDERED IN THE HC49/SVERSION OF THIS WELL KNOWN QRP CRYSTAL. I HAVE SOLD HUNDREDS OF THESE OVER THE YEARS, WITH GOOD SUCCESS.
HOWEVER, THESE ARE FOR LOW POWER TRANSISTOR AND VACUUM TUBE CIRCUITS. TYPICALLY YOU CAN GET THEM TO WORK FOR TRANSMITTERS IN THE ONE TO TWO WATT POWER RANGE. MORE THAN THAT AND YOU'LL LIKELY RUN INTO CHIRP AND WARBLE ISSUES.
THE FREQUENCIES, AS MARKED, ARE APPROXIMATE AND MAY VARY PLUS OR MINUS 1 KHZ, DEPENDING ON CIRCUIT LOADING.