[R-390] R390A Inrush Limited, Slow ramp-up Regulated B+ circuits

[Perry Sandeen]

Radio Fart Does it again, bringing you the very best in Ham Radio schematics for a R-390A/URR slow
startup B+ supply.  These new hand picked schematics leave No EXPENSE SPARED (as well as none on
my part- I copied them)!! True connoisseurs know how much time and attention to detail that is
required to do a perfect modification, the end result is truly amazing, the end result is a
perfect R390A. 

This modification  allows the R390a to dispense with L602, L603, C603, and C606 with a little
ingenuity.  With an added bleeder divider and capacitor 0A2 (V605) may be eliminated.

I personally installed this modification on the R390A used my Dr. Timithy Leary on his little
known peace flight to meet with Neville Chamberpot to help "achieve a piece of time".  This
Trans-Dogpatch biplane was flown by the famous pilot Capt. Eddie Ricketyback.  The flight left
Sadieville, Kentucky both in a fog of secrecy as well as that in the two heads of those in the
aireoplane. They used this improved Late, Motorola version of this classic receiver, the most
desirable made as it is a very late model. This receiver could easily been sold as brand new,
there was hardly a mark on it and all controls were perfect in every way, it had all of the covers
and all the markings are as clear as they could be. This was Motorola model Ser # CLASSIFIED. It
had been Recently, completely restored, with no expense spared to make it perfect and allowing it
to operate to well over Collins book specs.

For my modest contribution to this effort I was awarded the Croix de Air, with the crossed white
feathers and 500 degree Celsius marking. (it makes blus to tell you this, but history IS history).
 I was awarded this by Filed Martial Spittoon - I have an autographed video tape of the ceremony-
to prove it.  I’d like to tell you more about  this fascinating history but unfortunately the
official secrets oath I signed makes me stop at this point.

     The schematics work and are real.  Reply off list. Regards, Perrier 

     The resemblance to any adverts by a Kentucky based scumbag are deliberately coincidental.


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