06-30-2011, 08:43 PM
I have completed the recapping of my 37-89 and gone thru a re-alignment, but have a problem.
The radio plays pretty well, but "motorboats" at about 600kc, which happens to be the frequency for the low-end rf alignment. It does this during alignment with the signal generator connected if I vary compensator 12a slightly off peak output either way, as well as with the antenna connected if I tune down to about 700kc.
With the antenna connected, if I tune past the "motorboating" down to about 550kc it stops and I can pick up a station below that frequency.
Can anyone help me out on the likely problem or how to correct it?
Thanks Dick
The radio plays pretty well, but "motorboats" at about 600kc, which happens to be the frequency for the low-end rf alignment. It does this during alignment with the signal generator connected if I vary compensator 12a slightly off peak output either way, as well as with the antenna connected if I tune down to about 700kc.
With the antenna connected, if I tune past the "motorboating" down to about 550kc it stops and I can pick up a station below that frequency.
Can anyone help me out on the likely problem or how to correct it?
Thanks Dick
