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Looks like an HC-13/U package. 1970's is not "old" for crystals. When I started ham radio, I had a collection of FT-243 crystals (couldn't use a VFO, as a novice-class). You could take the cover off, take the crystal out, and change the frequency - rub it with a pencil to add mass and make it slower, or gently use a bit of fine sandpaper to make it faster.
Ty_Eeberfest wrote: BTW - is that big kind of oval aluminum can the 100KHz crystal? It's shaped like a crystal but it's about 10 times the size of any crystal I've ever seen! And I've seen plenty of old crystals - I was modding CB radios in the late '70s
Hotwater 16! That was my starter rig, too. Rules got relaxed while I was a Novice, then added a HG-10B VFO, which made things much easier. Amateur Extra now, with FT-890 and Elecraft K2, but not very active. Seems most hams these days are appliance operators.
Froula wrote: Heath HW-16.