[R-390] Intermittent

[Gary Harmon]

Sorry for the confusion.

By "broadcast" I meant to say I was listening to the broadcast band for
reference.  Specifically the local blowtorch, WOAI.

During an outage I have tapped on all the tubes, connectors, chassis, etc.

When I tested the tubes I cleaned the pins and sockets before re-installing
the tubes after testing.

73, 


Gary H. Harmon, Jr. - K5JWK
6003 Archwood
San Antonio, TX 78239-1504
210.657.1549h
210.884.6926c

-----Original Message-----
From: LEE BAHR [mailto:pulsarxp at embarqmail.com] 
Sent: Friday, November 13, 2009 8:54 PM
To: Gary Harmon; R-390
Subject: Re: [R-390] Intermittent

I have no idea what "broadcast" means.  If you mean AM broadcast stations
are coming in on frequencies other then their assigned frequency,  I would
suspect you have a poor grounding somewhere in the radio or in the antenna
that is acting as a diode and rectifying the AM broadcast station.  All
radio transmitters "broadcast" so your terminology is too vague to define
your problem.

Lee, w0vt



> My R-390 has intermittent signals.
>
> Sometimes broadcast will come on in about a minute and then operate 
> for hours before the signal drops out.  It may come back or it may 
> not.  When it drops out or comes on it does it slowly like something 
> turning on or off.
> When the signal drops out, audio hiss remains.
>
> All tubes have been checked but not lengthy tests.
>
> Suggestions anyone??
>
> 73,
>
> Gary H. Harmon, Jr. - K5JWK
> 6003 Archwood
> San Antonio, TX 78239-1504
> 210.657.1549h
> 210.884.6926c
>
> ______________________________________________________________
> 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