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i just got this today in a package deal. dont know much about it . seems everything works. just 2 things whats the swing button for. and on ssb if i pause the relays sometimes dont wanna rekey and modulate
The 'swing' button changes the bias on the two tubes. It's meant to reduce the carrier power without reducing the peak modulated power.
Quirky behavior from the keying circuit often turns out to be bad electrolytic capacitors. If they are original, they are all on borrowed time. Weren't supposed to last much more than 10 or 15 years let alone 40 years.
Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
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