Which battery controls which part of the meter?
Does the 9volt control the low end the mercury batter control the high end or vice versa?
Technological society has succeeded in multiplying the opportunities for pleasure, but it has great difficulty in generating joy. Pope Paul VI
So, I think the "greats" were true to their visions, once their visions no longer sucked. Ralph Barker 12/2004
9V low end (what is it , up to EV7?)
mercury high end
As luck would have it, here's a Pentax 1/21 post I made yesterday containing a link to a searchable copy of the full 100-page user manual for this meter.
On manual page 30 (PDF page 34) is the following:
"The 1/21 meter is powered by two batteries - one 1.3 volt mercury battery and one 9 volt dry cell. The mercury battery operates the high range, 'H', and the dry cell operates the low range, 'L.'"
"Hate is an adolescent term used to stop discussion with people you disagree with. You can do better than that."
—'blanksy', December 13, 2013
Why thank you Ken. PDF Downloded