Re: FW: FT-241 LF Crystals as a Long - Term Investment Instrument
Can the FT-241 crystals be opened up and thoroughly cleaned? That might revive them.
From: Hue Miller
Sent: Wednesday, November 6, 2019 3:25 AM
To: armyradios@... ; firstname.lastname@example.org
Subject: [wireless-set-no19] FW: FT-241 LF Crystals as a Long - Term Investment Instrument
I had this bag of those WW2 FT-241 LF crystals, which were used in the WW2 era FM and ship radios.
I realized I needed to finally make an executive decision on it, so I tested them all. I used the little Chinese
crystal tester I bought off Ebay for $12 or $18. I connected a couple alligator leads to the LF crystal connection
points on the tester.
Result: 74 defective, 13 working = 85% fail rate.
I did find one possibly good frequency, 457 kHz, but – for how much longer ?
Well, this kind of ends any fascination with possible uses of the LF FT-241s for me.