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August 24th 08, 11:27 AM
posted to rec.radio.shortwave
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Kaito KA-2100 upgrade
On Aug 24, 4:11*am, "Pete KE9OA" wrote:
The built in AC power supply on this radio has quite a bit of switching noise. Each of the diodes are bypassed, but they neglected to bypass the secondary of the power transformer. Place a 1uF ceramic cap across the secondary (input to the diode rectifiers) and this will eliminate that "light dimmer" type of buzz on the MW band. Pete Nice work Pete - that mains connection sure is a pest on MW. Wish I lived near you to send it for that upgrade (unfortunately if I try it I will ruin the radio and burn the house down) JP |
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