[ARC5] T-11 Crystals

[Robert Eleazer]

I have a few ARC T-11 transmitters and in a moment of unusually intense insanity last night decided I should try to put one on the local Unicom frequency, 122.975 MHZ, and power it up in my hangar, so that I could ... well, just because.

I dug out my TM 11-525-25, the US Army maintenance instructions for radio Set ARC Type 12, and tried to figure out what crystal I would need.

It says that the crystals operate in a Pierce circuit at either 1/12 or 1/18 of the operating frequency and are ARC-14958 which supersedes ARC-10714.

Okay, so do I find a crystal for 1/12 or 1/18 and what does that ARC part number translate in terms of CR or HC numbers?

Thanks

Wayne