[MRCA] R390A dropping resistor value

[Mike Feher]

On a similar subject, I always change out the 3TF7 and put in a dale chassis mount 50 ohm resistor. Works great. 73 – Mike 

 

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

908-902-3831

 

From: mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> On Behalf Of Bill Mellema via MRCA
Sent: Friday, January 23, 2026 9:11 PM
To: Jeep Platt <jeepcomms at outlook.com>; Military Radio Collectors Association <mrca at mailman.qth.net>
Subject: Re: [MRCA] R390A dropping resistor value

 

Great….thanks Jeep

 

Bill N3WM


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On Friday, January 23, 2026, 7:30 PM, Jeep Platt <jeepcomms at outlook.com <mailto:jeepcomms at outlook.com> > wrote:

Bill, I have the Navy book that shows solid-state rectifiers.  I will look it up in the morning...

Jeep K3HVG

 

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From: mrca-bounces at mailman.qth.net <mailto:mrca-bounces at mailman.qth.net>  <mrca-bounces at mailman.qth.net <mailto:mrca-bounces at mailman.qth.net> > on behalf of Bill Mellema via MRCA <mrca at mailman.qth.net <mailto:mrca at mailman.qth.net> >
Sent: Thursday, January 22, 2026 8:23:33 PM
To: Military Radio Collectors Association <mrca at mailman.qth.net <mailto:mrca at mailman.qth.net> >
Subject: [MRCA] R390A dropping resistor value 

 

Guys,

 

I'm in the process of solid stating the power supply on a R390A. I need the value of the series resistor listed in the field change. 

 

If anyone can help, I would appreciate it.

 

Best 73's

 

Bill N3WM

 


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