[ARC5] BC-696-A Inductor Scale_capacitor rebuild

[Mike Everette]

Mike Hanz's web site, www.aafradio.org has an article on rebuilding the capacitors.  I recall that he uses a tubing cutter to get the top part of the can off.

Mike Hanz is "the authority" on doing this sort of work!

As for the scales, I wouldn't be surprised to discover that all the SCR-274N and ATA units use the very same ones.

The ARC-5 transmitter scales from the T-18 through T-22 are different from the SCR/ATA scales in most cases (white background at the bottom), but the ARC-5 scales with the white background for the numbers/markings appear to be the same.  Not sure about the T-15-16-17, but I think the T-17scale at least is different from the higher freq units somehow.

73

Mike
W4DSE





________________________________
 From: Tom Elmore <tom at telmore.com>
To: 'Jay Coward' <jcoward5452 at aol.com>; ARC5 at mailman.qth.net 
Sent: Wednesday, November 27, 2013 11:38 PM
Subject: Re: [ARC5] BC-696-A Inductor Scale_capacitor rebuild
 

Jay, After cutting what I call the top piece of the capacitor off I tuned it
upside down on some foil and placed it in the outdoor gas grill on low for
about 10 minutes. That was enough to soften it up and remove the original
capacitors. I am going to replace those 3 with .05uf orange drops and solder
the top back on. It will look almost original when complete.



-Tom / KA1NVZ



From: Jay Coward [mailto:jcoward5452 at aol.com] 
Sent: Wednesday, November 27, 2013 6:51 PM
To: tom at telmore.com; ARC5 at mailman.qth.net
Subject: Re: [ARC5] BC-696-A Inductor Scale_capacitor rebuild



I don't know the material, but yes you should be able to solder to it, How
well? Up to you're skills I suppose.

Jay

P.S. I use a hot plate to pre heat assemblies requiring solder reflow.
Helps, in my experience but that (my experience) is always questionable. The
real experts should step forward now....

-----Original Message-----
From: Tom Elmore <tom at telmore.com>
To: 'Jay Coward' <jcoward5452 at aol.com>; ARC5 <ARC5 at mailman.qth.net>
Sent: Wed, Nov 27, 2013 5:10 pm
Subject: RE: [ARC5] BC-696-A Inductor Scale_capacitor rebuild

I just used a dremel tool cut off wheel to open one of the bathtub style
capacitors in order to rebuild it. I always though those were aluminum but I
recall reading somewhere that they are actually brass?  It looks like I can
solder the top part I cut off back on.



-Tom



From: Jay Coward [mailto:jcoward5452 at aol.com <mailto:jcoward5452 at aol.com?> ]

Sent: Wednesday, November 27, 2013 4:06 PM
To: tom at telmore.com; ARC5 at mailman.qth.net
Subject: Re: [ARC5] BC-696-A Inductor Scale_capacitor rebuild



Yes, it's an arbitrary scale for logging purposes. ARC-5 and SCR/ATA are
different from each other but probably the same for each tx in their
respective series. So find a "parter" with a good window scale. You'll get
your bearings too most likely or a replacement part all together. But the
knowledge that you can rebuild one of these capacitors is good stuff to have
"under your belt".

Jay

-----Original Message-----
From: Tom Elmore <tom at telmore.com>
To: ARC5 <ARC5 at mailman.qth.net>
Sent: Wed, Nov 27, 2013 4:34 pm
Subject: [ARC5] BC-696-A Inductor Scale

Does anyone know if there is a scale in the roller inductor window of the
BC-696-A?  I just replaced the window and it seems like there should be
something in there to indentify the position of the roller inductor.  











Thank You 



Tom Elmore KA1NVZ

Anchorage, Alaska 



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