FT-243 HOLDERS MODIFIED WITH QRP CRYSTALS FOR 40 METER CW (4 PACK)

Description

YOU ARE PURCHASING ONE LOT OF 4 QRP CRYSTALS IN USED FT-243 HOLDERS. ONE EACH OF 7023, 7030, 7035 & 7040 KHZ FUNDAMENTAL FREQUENCIES. THE SMALL HC49 CRYSTALS HAVE BEEN INSTALLED.
I HAVE USED THESE LITTLE CRYSTALS WITH GOOD SUCCESS IN LOW POWER QRP RIGS AND HAVE SOLD HUNDREDS OF THEM TO OTHER HAMS WHO HAVE HAD GOOD RESULTS.
HOWEVER, THESE ARE SMALL QRP CRYSTALS, SO BE CAREFUL HOW MUCH CURRENT YOU DEMAND. I'VE NEVER DESTROYED ONE, BUT THEY MAY BURN OUT IF YOU PRESS THEM TOO HARD. I'VE HAD HAMS TELL ME THEY'VE EVEN USED THEM IN THE OLD HEATHKIT TUBE RIGS, BUT I'D ADVISE USING THEM FOR QRP ONLY.
A WORD OF CAUTION; IF YOUR INTENDED USE FOR THE HC49/S CRYSTALS IS FOR A SINGLE TUBE CW TRANSMITTER, LIKE THE 6V6, 6L6, 6DQ6, ETC, YOU'LL LIKELY RUN INTO PROBLEMS WITH CHIRP AND INSTABILITY. THESE SMALL CRYSTALS CANNOT HANDLE THAT MUCH POWER. THEY ARE DESIGNED FOR TRANSISTOR CIRCUITS OR LOW POWER TUBE OSCILLATORS.
I HAVE SEVERAL SETS AVAILABLE, SO THESE ARE GENERIC PHOTOS. ALL CRYSTALS WILL BE IN THE FT-243 HOLDERS. THE CRYSTALS ARE NEW, BUT THE HOLDERS ARE FROM OLD USED STOCK. I SIMPLY POPPED OUT THE ORIGINAL CRYSTALS AND REPLACED THEM WITH THE CRYSTAL TYPE THAT YOU SEE IN THE SECOND PHOTO.
SHIPPING TO THE UNITED STATES ONLY.