[R-390] Them Orange Drops are big....

[Philip B Atchley]

Hello all.
Well, I'm perhaps 3/4 of the way through the recapping of my R-390A. 
Even though this receiver had "mostly" either the yellow Aerovox or
metal/glass capacitors (With only 3 "Brown Beauties") I decided to go
ahead and replace all the paper and 'lytic caps.  My philosophy is that
400 and 600 Volt caps are far less likely to fail and cause damage than
the 200 and 100 Volt caps that were in the unit.  And I already had all
the replacements except for the .033uF, 2uF and 'lytics  which are on
order.  And yes, I'm replacing that large oil filled can as two of my
previous (Motorola) units had AGC problems associated with this
capacitor.  I don't wish to take chances as once I put it in the
listening post I don't desire to have to constantly pull it out for
further troubleshooting.

But boy, those 400 Volt .1 uF Orange Drops are much larger than the
originals.  I also had a bunch of 630 Volt "Blue Drops" that I used in
many places as they are "flatter" and fit better in many places.  In the
last 3 R-390A's I recapped (1 Collins and 2 Motorolas) I used the little
brown capacitors from Mouser and they seem easier to fit in tight places.
 

Of course I used a 600 Volt .01uF capacitor for coupling to the
mechanical filters. 

73 de Phil  KO6BB
Loving home provided for wayward Boatanchor Receivers
ko6bb@juno.com
Merced, Central California
37.18N  120.29W  CM97sh

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