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Old 08-17-2013, 06:11 PM
jr_tech's Avatar
jr_tech jr_tech is offline
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How is it being powered? Is the supply voltage dropping after the set is on for a while? This could possibly cause the local oscillator for the FM to stop oscillating at the high end of the band.

jr
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Old 08-17-2013, 06:54 PM
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compucat compucat is offline
1949 Motorola 9VT1
 
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Quote:
Originally Posted by jr_tech View Post
How is it being powered? Is the supply voltage dropping after the set is on for a while? This could possibly cause the local oscillator for the FM to stop oscillating at the high end of the band.

jr
I have been powering it from new alkaline batteries and from fully charged NiMH rechargeable batteries. Also, I have run it briefly from the mains adaptor. So far choice of power source has had no affect on performance.
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