[R-390] R-390A FL-101 repair/replacement...

[Thomas Hoyer]

Jordan.
I rigged up a plate that screws onto the rear of the enclosure using existing holes on a couple of my 390A's. I Have some studs coming through just like the filter. I can send some pics if interested.
TomW3TA


-----Original Message-----
From: Jordan Arndt <Outposter30 at shaw.ca>
To: R-390 Forum <r-390 at mailman.qth.net>
Sent: Mon, May 2, 2022 2:01 pm
Subject: [R-390] R-390A FL-101 repair/replacement...


Hi group...

I'm going to have to replace FL-101 in 2 receivers, and I'm considering 
installing those Corcom computer type line filters in their place.

One has a broken solder connector on the B side of the filter output, and 
the one I was going to use to replace it shows both ~100uA leakage at 
~200VDC and <10Meg of insulation resistance in both the A and B lines 
measured with my TO-6.

I also tested the broken filter for comparison, and there is no DC leakage 
at all, and the insulation resistance is as near to infinite as I can 
measure on the TO-6.

What is the recommended method to enlarge the opening in the rear panel to 
the necessary dimension..?

Would a Dremel tool with a cutoff wheel work..?

Any tips are greatly appreciated....!

73...Jordan VE6ZT 

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