For Sale: Unsorted, Bulk Crystals. Ten to 30 cents each, as noted below. About 900 Metal, mostly the larger CR-18/U size, but there are some of the tiny metal ones. Frequencies all over the lot. I did not go through these and did not cherry-pick any frequencies out of the lot--they are exactly as-found. Happy Hunting. $90 plus $8.60 priority flat rate box mailing with tracking.
About 150 FT-171B types. These are the huge crystals used in the BC-610 and other pre-war rigs with high crystal currents. They have 2 banana plugs widely-speaced. 20 cents each: $30 About 100 BC-604-605 "Tank Radio" types. These crystals are all FT-241 type. These are the ones that were used in the FM tank radios BC-604-605 etc. They're black with white engraved markings on top that say "CHANNEL xx XX.X M C", for example "CHANNEL 39 23.9 M.C." HOWEVER, in these crystals, the xtal is not the marked frequency, but rather the marked frequency divided by 54. So the channel 0 xtal, marked 20.0 Mc, is actually 370.370 kc., and the channel 79 xtal, marked 27.9 Mc., is actually 516.667 kc. Etc. Three very useful xtals in this series are: Channel 16 21.6 Mc - 400.000 kc, Channel 43 24.3 Mc - 450.000 kc and Channel 70 27.0 Mc - 500.000 kc. (other useful channels are those near the popular 455, 465, and 470 kc. IFs. The math is left as an exercise for the reader. These FT-241s plug into FT-243 sockets or octal tube sockets. I have not gone through these at all. There are probably many duplicates and some missing channels. This lot also includes some Channel 3xx series types that look similar but are on different frequencies. Those are probably for a different radio. 20 cents each: $20 for the lot plus $8.60 USPS flat rate box mailing cost with tracking. About 150 DC-34 and other military big-pin types. These are all from various WWII military rigs including the BC-669. Definitely some HF ham nband frequencies in this lot. 20 cents each: $30 for the lot. About 100 Motorola big-pin types. I am not sure what the holder size is on these--it is close to DC-34. These are large crystals but not as big as the FT-171B's. They all have metal Motorola ID tags showing the frequency on them. I think these are all from old commercial mobile rigs. 15 cents each: $15 for the lot. About 15 Motorola dual-FT-243. Some bright boys at Motorola decided to package 2 FT-243 crystals in one 4-pin holder that is twice the thickness a regular FT-243, but the same height and width. I'm not sure what the gain was from this design. Anyway, for the curious: $5 for the lot. About 20 Military DC-xx, LM, command set, and unknown in octal holders or other strange holders. Some of these have been taken apart. As-is. $10 for the lot. Thanks for looking. 73, Don Merz, N3RHT ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected]
