Help Connecting Heath SB-610 to SB-101 for recv monitoring

[Dave Edwards]

I seem to remember it necessary to retouch the IF alignment on the rig after 
adding the cap.
...Dave
----- Original Message ----- 
From: "John P." <jpetrocxme at YAHOO.COM>
To: <HEATH at LISTS.TEMPE.GOV>
Sent: Tuesday, August 05, 2008 9:07 PM
Subject: Help Connecting Heath SB-610 to SB-101 for recv monitoring


Hi All,

I am trying to connect the Heathkit SB-610 monitor scope to monitor received 
signals and am encountering a problem (BTW, transmit monitoring works great)

Anyway, according to the SB-610 manual, it is recommended to connect a 1 pf 
capacitor to the plate of the last IF amplifier and the other side of that 
to one of the spare jacks on the back of my SB-101.

I did this part and doscovered a SEVERE reduction in sensitivity (low 
receive). Heathkit manual (SB-610) also speaks of trying a very slightly 
higher capacitance if needed.

I did some troubleshooting and discovered that ALMOST anything well affect 
this tube's output adversely.
BTW, I only had a 1 pf disc capacitor - nod not have a mica cap.

Anyone encounter any similate issues please share the solution.

Thanks
I am wondering




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