[R-390] 390A questions

Joe Foley [email protected]
Tue, 18 Jun 2002 19:55:41 -0700 (PDT)


--- Jim Shorney <[email protected]> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> 
> 
> If you guys will let a Drake man in here... :-)
+++++++
Well,......... Ok, most converts are allowed but only
if you go through the 12-step program, or is it
pogram?  Then you have to send the offending
contraband, Drake, in your case, to someone else on
the list.

You'll notice small refeerences to certain radio
manufacturers on occasion, usually taking this format:

(Bendix)

These are the former owners of contraband listing the
items they personally sent to other members of the
list to "cleanse" themselves.

I personally do not have to do this as MY station is
an R-390A with a T-368, the other stuff came along
later, like:

(Howard)

and 

(Crosely, Division of AVCO)

Or

(Gonset)


> 
> I just picked up a well-used R390A that hasn't been
> powered in 10+
> years (yes, I have a variac). 
++++++++
You'll be ahead to download the R-390Y2K manual as
soon as you can.  It was a group effort by some
members of this list to update and correct the
original manual and put better pictures in it with
more information.


 I've been reading a
> lot of stuff on the
> web, and noticed several notes about the cap that
> shorts and destroys
> the mechanical filter(s).  How prevalent is this? 
+++++++++
Not very, but the cost of the failure is worth the
time and effort to replace the capacitor.

 I
> plan to replace
> the cap anyway with a higher voltage rating, but I
> was wondering if
> anyone has looked into methods of protecting the
> filters.  I was
> thinking, maybe a small-value pico-fuse in series
> with the cap?  It
> seems at that frequency, it would have negligible
> effect on circuit
> operation.  I've seen them as small as 1/8 amp,
> would that be small
> enough to blow if the cap shorted?  I have no idea
> at this point of
> potential current involved, just idle speculation.
++++++++++++
Um,....... do you have a R-390 mailing list approved
Dead-Horse-Beating stick??


> 
> How many Jims do you have in here?
+++++++
Not a problem, Jim,........ but if your name had been
Barry...............

Joe, (not a Barry either)

R-390 mailing list designated bee-hive kicker extraordinaire!

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