The Photography guys also have a need for the mercury cells in someNot really relevant since the exact voltage isn't important for the
7S14, and no current is drawn.
I don't know what cell the 7S14 Dual Trace Sampler used...#313 cells with tabs, 2 per channel
I think building a 1.35V constant voltage power supply would be a much more elegant solution.The problem is that 2 separate 2.7V floating supplies need to be built
in a very limited space. The battery and photovoltaic solutions that
have been developed are both good though.
(Note, a small lithium cell per channel would also work fine - CR1220?)