[R-390] R390 Non-A notes and mods

[Bob Young]

http://www.r-390.com/  third time is a charm.
[http://r-390.com/DJM!.jpg1zA]<http://www.r-390.com/>

Dave Medley's R-390 Compendium of Knowledge<http://www.r-390.com/>
Dave Medley's R-390 Compendium of Knowledge Reposted by Lester Veenstra K1YCM /3 M0YCM. David became a SK MAY 2 2010 IN TUCSON [RIP FRIEND, HANK KN6DI]. This site is devoted to the wonderful Collins R-390/URR Radio.
www.r-390.com



________________________________
From: r-390-bounces at mailman.qth.net <r-390-bounces at mailman.qth.net> on behalf of Bob Young <bobyoung53 at hotmail.com>
Sent: Saturday, May 11, 2019 8:26 PM
To: r-390 at mailman.qth.net
Subject: Re: [R-390] R390 Non-A notes and mods

Woops,

r-390 at mailman.qth.net

________________________________
From: r-390-bounces at mailman.qth.net <r-390-bounces at mailman.qth.net> on behalf of Gary Biasini <gary.biasini at shaw.ca>
Sent: Saturday, May 11, 2019 8:15 PM
To: Perry Sandeen; r-390 at mailman.qth.net
Subject: Re: [R-390] R390 Non-A notes and mods






         I think Dave Medley’s site has been kept alive at r-390.com



         Gary I. Biasini






On Sat, May 11, 2019 at 5:13 PM -0600, "Perry Sandeen via R-390" <r-390 at mailman.qth.net> wrote:










Yo Bubba Dudes!,
Dave Medley(sp) who was THE non-A guru left us several years ago and his web site AFAIK is gone.
James 'Andy' Morrer has a R390 site with manuals but there doesn't seem to be any sites that carry the *Learned by the School of Hard Knocks* tips, tricks, and mods.

 IIRC there was a SS PS regulator circuit published in the Hollow State News years ago.  Considering the cost of tubes, heat and complexity of the OEM circuit, a SS PS mod seems very attractive.
If list members have such data, perhaps it could be posted as a subset on the R390FAQ site?
Since the R390 and R725 were produced in such small numbers helpful tips and hints may be scattered hither and yon.
Gathering, consolidating, and posting such info could prove valuable.
Regards,
Perrier


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Yo Bubba Dudes!,
Dave Medley(sp) who was THE non-A guru left us several years ago and his web site AFAIK is gone.
James 'Andy' Morrer has a R390 site with manuals but there doesn't seem to be any sites that carry the *Learned by the School of Hard Knocks* tips, tricks, and mods.

 IIRC there was a SS PS regulator circuit published in the Hollow State News years ago.  Considering the cost of tubes, heat and complexity of the OEM circuit, a SS PS mod seems very attractive.
If list members have such data, perhaps it could be posted as a subset on the R390FAQ site?
Since the R390 and R725 were produced in such small numbers helpful tips and hints may be scattered hither and yon.
Gathering, consolidating, and posting such info could prove valuable.
Regards,
Perrier


______________________________________________________________
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
______________________________________________________________
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
______________________________________________________________
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