[R-390] R-390A

[Bill Riches]

Thomas,

My measured average power drain taken with over 75 r-390a receivers of 100 watts is measured with an accurate wattmeter.  It is actual drain within 5 percent with ovens off.

73,

Bill, WA2DVU

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net] On Behalf Of Larry H
Sent: Friday, June 23, 2017 8:06 PM
To: R-390 at mailman.qth.net
Subject: Re: [R-390] R-390A

Hi Thomas,  The label on mine says 220 W, but that's with the heaters on.  At 115 vac that's about 1.95 amps, but they usually draw a little less than that.   With the vfo ovens off, about 140 watts.  You should not need them on unless your operating temp is very cold.  The switch is on the back.  The thermostat has a habit of sticking on and ruining the vfo.
For the audio, check the links on the back.
Did you replace the killer cap, c553?  If not, do so asap.
Enjoy.

Regards, Larry     
 
   
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