[R-390] Filters

[quartz55]

Yes, the 2K filter does have some action through it, but gives -2V diode load where the 8 and 16 give -7V, but the 4 appears dead.  I'll have to go through the .1, 1 455 crystal to see if something in there is dragging down the 2 filter.  The filters seem to check OK with the ohmmeter though.  I don't think it's in the switch, everything looks to be original and undisturbed unless the guy was really good.

The variable action I'm talking about is during a time period through the same filter so I think it's a cap or something changing value during warm up.  And that's in another unit.  The filters in it are good.

BTW I took L601 apart and it appears to be made with #34 enameled wire and it smells really burned.  Lots of wax in the thing and the round button popped off while I had the heat gun on it and I can't find it now.  Not sure it's worth trying to re-wind if I can find a replacement at a reasonable price.  110 ohms for #34 is over 400'.