[Heathkit] SB-610 scope to SB-303 receiver

[Peter Markavage]

Use the lowest value that will give you a decent viewing scope trace. The
higher the value, the more chance you're load down the IF stage. Note:
the IF frequency of the SB-310 should match the frequency coil setup in
the SB-610. I.0 mfd sounds way too high. I wouldn't go any higher then
.01 mfd.

Pete, wa2cwa

On Tue, 11 Dec 2007 15:46:11 -0500 "Dan Pividal"
<dpividal at tampabay.rr.com> writes:
> I am trying real hard to hook up an SB-610 to an
> SB-303.
> If anyone has done the mod to monitor the receive envelope please 
> let me 
> know what value of coupling capacitor you used with success.
> Seems the Heathkit SB-610 assembly manual says to use a 1.0mmf
> Also says, they supplied the 1.0mmf as well as a 2.2mmf and a 12mmf 
> 
> capacitor in the original kit.
> I believe that long ago mmf meant Picofared.
> That would make a big difference.
> Tech notes I have from Heathkit says to use a 1.0mf coupling cap to 
> the 3rd 
> IF via a RG174 coax to a spare RCA plug in the back of the 
> receiver.
> To which document do I pay heed.
> Thanks in advance for any help in clearing this up.
> Dan/N4VET 
> 
> 
>