[Milsurplus] A BA-1293 solution

[Joe Munson]

my queston to Tim is how did you "Solder" to the stainless steel tabs?


> 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."