[R-390] R-390A

[Guido Santacana]

Hi,

   Replace C553 and all of the brown paper caps in the IF, RF sections.
That is good insurance. Also check that the plug-in electrolytics in the AF
section are not getting too hot and not leaking. Sometimes they can be
reformed. Clean all the contacts and tube sockets too. A few months ago I
got an EAC R390A that had not seen use for many years. I did all of the
above before even testing it. It has been working fine since then.

Best 73s

Guido

Guido Santacana KP4FAR

On Fri, Jun 23, 2017 at 4:24 PM, Thomas Weigel <tomweigel1 at comcast.net>
wrote:

> Hello:
>
>
>
> Having recently come into possession of a very clean EAC 1967 build
>
> R-390A, I brought it up with variac and dim bulb tester.
>
>
>
> While bringing the set up to 115 volts, I notice the dim bulb lights up
>
> very well.
>
>
>
> My question:  Does the R-390A normally draw heavy current?
>
>
>
> So far, I do not have any audio.  Also, have replaced the 3TF7 with
>
> a solid state unit, along with several of the tubes.
>
>
>
> Any ideas?  Thank you, Tom, ABØJ
>
>
>
>
>
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:R-390 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>