[Milsurplus] Dynamotor art/13

[WA5CAB at cs.com]

Moe,

The angle of the camera to the dynamotor is not quite great enough for me 
to say for certain, but I think the end bell still attached is also straight. 
 If that is the case, then it is either a Ballantine or Wincharger 21932 
sitting on a COL-23333 base/control unit, or a DY-12/ART-13.  If the far end 
bell is tapered, it would be either a Russell 21931 sitting on a 23333 or a 
DY-11/ART-13.

FWIW, the only differences between the Navy nomenclatured and AN 
nomelatured models is the nameplate.  Most DY-11's and DY-12's were created by putting 
new nameplates onto the ATC models.

But in any case, I recommend that you do as John suggested and repair it.  
If it were a DY-17A/ART-13A, or maybe a DY-17/ART-13A (there are two 
variants and I may only have one left), I could send you the parts.  But the early 
models are scarce if not rare.

Also, on the Russell models with the tapered end bell, the straight end 
bell is on the fan end.

The DC input connector is some fine-thread AN connector and not original.  
The correct connector is GK-C3-32S (2 large and one small pins).  Fits 
U-10/U.

In a message dated 11/15/2009 10:04:49 PM Central Standard Time, 
hoopmonk at snet.net writes: 
> It looks like a DY-11. However not 100% sure, but I believe the end caps 
> are 
> reversed. The bullet shaped cap should be on the end with the plugs and 
> fuse
> holder.
> Bob W1GTH
> 
> 
> ----- Original Message ----- 
> From: "Mike Morrow" <kk5f at earthlink.net>
> To: "Moe Fretz" <tubetester at gmail.com>; "milsurplus" 
> <Milsurplus at mailman.qth.net>
> Sent: Sunday, November 15, 2009 10:09 PM
> Subject: Re: [Milsurplus] Dynamotor art/13
> 
> 
> >>Looking to purchase an end cover and cooling fan for this dyno.
> >>
> >>http://pic20.picturetrail.com/VOL1601/8089626/20756949/377967717.jpg
> >>http://pic20.picturetrail.com/VOL1601/8089626/20756949/377967715.jpg
> >
> >That looks like a Cxx-21931, or maybe a DY-12/ART-13, or less likely a
> >DY-11/ART-13.  There are several different dynamotors (Cxx-21931 part
> >of ATC, DY-11, -12, or -12A/ART-13, and DY-17 or -17A/ART-13A) for the
> >various ATC and AN/ART-13 sets.  There are mechanical differences between
> >some of them, so you'll need to specify the exact unit that you are
> >repairing.
> >
> >What you pictured looks like it could be re-worked and re-shaped without
> >a whole lot of trouble.  That's likely much more easily done than coming
> >up with parts.
> >
> >Robert/WA5CAB is an expert on these units.
> >
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480