[ARC5] Dynamotors

[WA5CAB at cs.com]

The 46145 is perhaps the rarest of the ARA receivers.  I did the tube swap 
and brush rotation trick, too.  Although the dynamotor efficiency is poor.  
Today, I know that there are several 14 volt dynamotors with the same frame size 
such as DM-34 and DM-53-AX that work better.  Plus the plug-n-play DY-1/ARR-2X 
and CBY-21400, although they are quite scarce.

You can do a tube swap in the AN/ARC-5 sets as well.  But the 6SF7 seems to 
be harder to find than the above mentioned dynamotors.

In a message dated 6/22/2008 8:13:48 PM Central Daylight Time, 
clare.owens at gmail.com writes: 
> I just looked at the CCT-46145 broadcast band unit that I used on 12V
> in 1960 or so.  All I did was plug in 6V tubes (6V6 for the 12A6) and
> moved one LV dynamotor brush 90 degrees - gave around 160V as I
> recall.  I am very glad I didn't make any receiver wiring changes and
> also that I saved that receiver all these years...  Do the ARC-5 sets
> require wiring changes to use 6V tubes?
> 

Robert Downs - Houston
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