[ARC5] Help Needed

[Mike Feher]

That is really generous of you Clare. Have a great Thanksgiving. 73 - Mike 

Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960 

-----Original Message-----
From: ARC5 [mailto:arc5-bounces at mailman.qth.net] On Behalf Of Clare Owens
Sent: Monday, November 24, 2014 11:38 AM
To: Joel R Roberts
Cc: Discussion of AN/ARC-5 military radio equipment.
Subject: Re: [ARC5] Help Needed

Hi Joel,

Last March at an estate auction I was able to buy a Very nice BC-348R that
had been fixed up and converted to AC by a real craftsman, the retired chief
engineer from station WBT.  It came with what is apparently the dynamotor
from which the filter box for the AC supply was taken, a DM-28-J.  It has
some rust on the outside of the frame but the labels and the interior are
nice.  The guy even left the four mounting screws in the mounting bracket.
I cleaned and regreased the bearings in March and it sounded and ran OK then
but not perfectly.  When I saw your email yesterday I went over to the
shelf, got the dyno and tried it out.  It sounded too noisy so I cleaned the
bearings again this morning and regreased it.  Now it sounds like a normal
WW II dynamotor (well, except for the SCR-522 dynos, whose sound is like
music to my ears - but that's another story) and produces 225V with 24.5V @
.75A input, no load.

To make this long story short, send me your address and I'll pack up the
dynamotor and send it to you, no charge.  I'll never use it and you will so
it belongs with you.  Early Black Friday gift.

Clare  N2RJB




On Sun, Nov 23, 2014 at 3:50 AM, Joel R Roberts <joelroberts001 at comcast.net>
wrote:

> Greetings everyone, and happy Holidays. I was recently given a 
> BC-348-R that looks to be internally intact, but is of course missing 
> the Dynamotor and Filter assembly, and also the metal case. Does 
> anyone know where I can find the values for the two filter chokes in 
> the assembly? As every one of the complete Dynamotor/Filter assembly's 
> are scarce, and those we occasionally see on the bay are quickly 
> driven out of my price range, similar to the Modulator/Dynamotor sets 
> that a lot of us need, I am going to build up a substitute using the 
> manuals and schematics that I currently have. If anyone has an extra 
> case or knows the value of the chokes, let me know. I really 
> appreciate the help. Thanks and 73's to all,,,,,,,Joel KB0FPT
>
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