Used to buy Zenith branded ones by the gross for 19 cents.
They seemed to work as good as any but I dont know who
made them. Radio Shack ones were junk. people would
replace a few & we always came out & replaced them. When
old they are fussy as to where they work. In other words they
may work in AGC but no 3.58 osc.
73 Zeno
