I'm still unable to remove the roll pin, and the punch I was using actually
broke off near the business end, so I'm stuck there for now.
Q: What happens when you use 2 x 18pF SM caps in // to replace a single
36pF..?
Specifically, I want to replace C-211, a 36pF cap, but I only have 18pF and
39pF SM caps on hand.
Aside from ordering more caps, which is the "better" solution, using 2 x 18
or a 39pF cap to replace C-211...?
Your thoughts are much appreciated....73...Jordan VE6ZT
----- Original Message -----
From: "Jordan Arndt" <[email protected]>
To: "'Collins R-390 HF Receiver List'" <[email protected]>
Sent: Saturday, June 08, 2024 12:05 PM
Subject: Re: [R-390] Antenna Trim trouble
Well, my first attempt to remove the roll pin was not a success...The pin
didn't budge and the roll pin punch bent. I'll try the freeze/torch
process and I hope that works. The punch I used was 1/16" which appeared
to center and fit properly, but it was/is a fairly cheap tool. I may look
for a tougher type of punch.
My problem did not appear to be grounding of the AGC line, only slight
scratching as I turned the Ant Trim control, so using my Sprague TO-6, I
tried to see if I could provoke "leakage" using the insulation resistance
test of the TO-6, but to no avail...
That's all for now...
73...Jordan VE6ZT
______________________________________________________________
R-390 mailing list
Home: http://mailman.qth.net/mailman/listinfo/r-390
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
______________________________________________________________
R-390 mailing list
Home: http://mailman.qth.net/mailman/listinfo/r-390
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
