[SignalOne] The Notorious Surgistor

[John Abercrombie]

Hi,

I used a CL-11 which is available from Newark in One. Their part number is
16F5006 which is rated at 12A continuous. I've sent along the data sheet so
you can look at what's available. Panasonic makes some too. Mine has never
failed since I installed it. I have an early (SN 42) CX7A with a Peter Dahl
transformer. 

Good Luck,

John Abercrombie
WB6DAX

 

-----Original Message-----
From: signalone-bounces at mailman.qth.net
[mailto:signalone-bounces at mailman.qth.net] On Behalf Of Michael Student
Sent: Tuesday, October 12, 2010 7:19 PM
To: EDWARD SCHUMACHER
Cc: signalone at mailman.qth.net
Subject: Re: [SignalOne] The Notorious Surgistor



This list is for discussions regarding collecting, repair, use and sale of
Signal/One radios and accessories. 

Documentation on Signal/One radios can be found at http://www.hamanuals.com
and several other sites on the Web. 
 
.










Ed, I just went through the same thing and replaced the thermistor with a
step start relay, I replaced the original thermistor 5 or so years ago and
wished a permanent solution rather than S-1's answer to add a POS to protect
the  power switch that failed prematurely due to it's inability to with
stand the surge current on power up. If you insist check out RF Parts Co
selection of inrush limiters.  http://www.rfparts.com/inrush.html
 
73, Mike

--- On Tue, 10/12/10, EDWARD SCHUMACHER <edwa9gqk at yahoo.com> wrote:


From: EDWARD SCHUMACHER <edwa9gqk at yahoo.com>
Subject: [SignalOne] The Notorious Surgistor
To: signalone at mailman.qth.net
Date: Tuesday, October 12, 2010, 5:53 PM




This list is for discussions regarding collecting, repair, use and sale of
Signal/One radios and accessories. 

Documentation on Signal/One radios can be found at http://www.hamanuals.com
and several other sites on the Web. 

.
Well, it has finally happened to my radio too. The notorious surgistor
(which 
was actually a recommended add to the early CX7's and became standard) has
died 
in my radio. I have just finished plugging in the new nixie driver chip and 
installed one of my NOS 8072's and now the surgistor has finally cracked 
through. It was admittedly in bad shape when I got the rig so I knew final 
failure could happen anytime, just wish it wasn't today, HI!

I know many have asked about replacements for this device but I have not
heard 
of any successes. I have a copy of an e-mail from back in '05 where someone 
claims to have gotten some sort of replacement from Digikey but never gave
the 
specific info. Can't believe it was an actual Workman FRT2 though. I have
not 
been able to back reference the spec on the Workman device so I cannot tell
what 
else might work. Anyone out there who has done this, would sure appreciate 
hearing from you. As a last resort I will just develop a start
resistor/relay 
setup like in the linears.

Thanks and 73 ... Ed, WA9GQK



      
______________________________________________________________
SignalOne mailing list
Home: http://mailman.qth.net/mailman/listinfo/signalone
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:SignalOne at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
______________________________________________________________
SignalOne mailing list
Home: http://mailman.qth.net/mailman/listinfo/signalone
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:SignalOne at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html