[R-390] OT: R-388 questions

[Al Parker]

Hi Barry,
    Don't apologize for R-388's being off topic, with all the other crap
that goes on here ;-)
    Yes, the PTO's almost always need help, but it's not a difficult or
life threatening surgery, there's info on it on my webpages, ref. below.
I really like working on R-388's.
    Let me quote from a msg I just sent abt  30 min. ago to almost the
same question:
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    The R-388's are very nice rcvrs, tho' not as easy to cruise with as an
SP-600, but at least you do know just where you are.
    I've "done" 2 of them in the last 6 mo.s or so, one of mine and one
for a friend.  The only capacitors that I've found to be worrisome are the
HV filters (plug-in), some of the bathtubs, and a mica, C-204, the
coupling cap from V-110 to the AGC ckt.  2 other guys have had problems
with it also, so take a look.  It may be the sensitivity problem.  I've
been into several Collins PTO's, usually they've had "vitamin Q's" (or is
it D?) as bypasses, and didn't really need replacement, but I did anyway.
The span fix isn't hard, and the feedback cap should be replaced.  (Your
500kc xtal in the phasing can is probably bad, mine was, and I'm still
looking for a replacement, as I borrowed one from another rcvr.) - that
was in response to a particualr question, it's not always bad.
    You can take a look at the ones I've done, start at:
http://www.thecompendium.net/radio/R388sn58.htm
    I sold this rcvr a week ago to a collector who really only wanted the
cabinet, and the rcvr then showed up on ebay.
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73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.thecompendium.net/radio/
http://www.hammarlund.info