SB-610 IF Freq

[Gerald C. Lemay]

A while ago, I took measurements of the various coils but I can't seem to loacte them at
the moment. The SB-610 manual specifies 200pf to resonate the coil at 455KHz. That would
mean the inductance value would have to be somehwere around 612uH. You might try a 455KHz
IF transformer. It should work. This is not a critical part, so long as it resonates at
the frequency of interest.

73/Gerry/W1ID

Robert Lawson wrote:

> I recently purchased a SB-610 monitor scope and need to convert it to a
> 455 IF frequency. Presently it is on the 3 to 6 mhz range. Basically I
> need the 455 kc tunable coil part #40-476. Does anyone know of a source
> for these. If these are as scarce as "hen's teeth", just knowing the
> inductance range of the 455 kc coil would be very helpful.
>
> Thanks in advance.
>
> Regards,
>
> Robert W4RL Pensacola Florida
>
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