[R-390] SSB Adapters and Treetop Circuits

[Larry H]

Hi Brian,  Good luck with your 390A problem.  Roy is right.  But if that
doesn't fix it, look at the 1st mixer, V202, and the MB coax plug P221 that
feeds the 17 mh signal to it.  It's contact gets a little poor sometimes.

Let us know what you find.

Regards, Larry

On Tue, Jul 5, 2022 at 8:43 AM brianpepperdine brianpepperdine <
brianpepperdine at sympatico.ca> wrote:

> I am intrigued by this info...if in part only because the originated
> fellow is from Ontario, like me!
> However at this point I have two working TMC CV-571 units at hand... I
> was going to sell one but the guy wanted MINT condx adapter so I figure
> I just will hold onto the redundancy.
> Sadly, my 390A stopped working below 8 Mhz... I have looked into it
> somewhat but as I am recovering from abdominal surgery it will be
> sometime yet before I hefting a 390A around and about. I might hand it
> off to my ham friend to look into fixing it.... he knows them...but
> still face the issue of getting the radio out of the house. Maybe my
> brother in law can be enlisted as brute force mechanism........but I
> really should look into it first just in case its a bad cap in that part
> of the IF deck.....
> tnx
> Brian VE3HI  Toronto ON
>
>
>     ------ Original Message ------
>     From: jwkoest at charter.net
>     To: sandeenpa at yahoo.com; r-390 at mailman.qth.net
>     Sent: Monday, July 4, 2022 9:19 PM
>     Subject: Re: [R-390] SSB Adapters and Treetop Circuits
>
>           Perry,
>
>   Glad you made your escape.  Life is good here in the eastern part of
> the country! We are blessed to live in eastern Tennessee.
>
>   Joe/W4NSA
>
>   -----Original Message-----
>   From: r-390-bounces at mailman.qth.net <r-390-bounces at mailman.qth.net> On
> Behalf Of Perry Sandeen via R-390
>   Sent: Monday, July 4, 2022 1:18 PM
>   To: r-390 at mailman.qth.net
>   Subject: [R-390] SSB Adapters and Treetop Circuits
>
>   Yo List,
>   We escaped Californicate in Aug 2021 and now have bought a house in
> Clinton, SC.
>   We chose this area as I'm working with Glen Scott who owns DSM Labs.
>   Glen is a list member who for 24 years has specialized in re-maning
> mostly R390A for people who contact him directly. He also does R388's,
> R390's, R392 and rarely R389's and R391's.
>   Glen also does repairs on some other types of equipment. He wrote and
> article on how to re-do R39X series of front panels.
>   Unfortunately for the moment, serious health issues have had him from
> doing any work.
>   My plan is to start re-maning and upgrading SP 600's which
> unfortunately is way behind schedule because of house and family medical
> issues.
>   There are several SSB conversion circuit in the Y2KR3 manual.  A
> number of SSB circuits from the past postings are not viable as the
> necessary parts are not available.
>   I'm in negotiation with Bob Thomas who owns Treetop Circuits to buy
> his complete operation. There is another list member who is interested
> in working with me on making the same SSB adapters using a different
> name.
>   It would probably be 2 to 3 months before we would have products for
> sale.
>   Two very expensive and hard to find are the Sherwood (almost
> impossible to find) and Hammarlund HC10 SSB adapters.
>   Whether or not it's worth the effort to do the revised Captain Lee
> circuit depends what level of skill, determination and tools one has.
>   Regards,
>   Perry KM6FQV
>
>
>
>
>
>
>
>
>
>
>
>
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