[Milsurplus] A BA-1293 solution

[WA5CAB at cs.com]

I've taken apart a number of 9-volt batteries while building up ersatz 
BA-41's.  None that I've disassembled had the traditional spot welded jumpers.  
The jumpers were on two fiber boards which form the top and bottom of the 
battery.

In a message dated 12/21/2013 16:24:40 PM Central Standard Time, 
kargo_cult at msn.com writes: 
> Tim, N6CC,  replied with this:
> 
> "Hi Hue - I rigged up a bias battery with 3 cells from a common 9 volt
> "transistor radio" battery. 3 cells are held together in series with the
> stainless steel ribbon straps and I just soldered to those and to the pins
> on the BA-1293 base, positive grounded. A bit of heat shrink tubing
> overall and it fits inside the original battery clamp. Works great, lasts
> forever.
> The radio will work without the battery but you can see the resulting
> distortion on a scope and I can hear a little difference with/without as
> well. That AF tube will be happier not drawing excessive plate current if
> biased properly...If the original battery has 'gone fuzzy' there's no
> telling what the grid voltage would be."
> 

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