[LargeFormat] mercury batteries

[john frost]

I have had all my old stuff converted to silver cells. Some items
required a new cell holder and recalibration, others required only an
adjustment to the potentiometer. To date: Pentax Spotmatic, Canon FT,
Gossen Luna-Pro.

My camera repair shop has a supply of mercury cells for his 'regular'
customers.

"Philip J. McCourt" wrote:
> 
> Does anyone know if there is a good  replacement for mercury px640
> batteries that were used in pentax spot meters. It is illegal to import
> them in the States nowadays. Wein makes a zinc air battery to replace
> the px625's and the px13's, but I can't seem to find one for the 640. B&
> H sells an alkaline 640, but the higher voltage would throw off the
> meter reading.
> 
> Has anyone had any luck dealing with this problem?
> 
> Phil McCourt
> 
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