On Thu, 19 Jan 2006 17:56:33 -0000, "David Sewell"
wrote:

Hi ya,
I got an old TMK multimeter. The 15v battery for the highest resistance
range needs replacing. It is a number 504. Any suggestions please on a
cheap and compact way to substitute this battery?
Thanks,
Dave

Not familiar with TMK. Assuming it is a bridge circuit, and there's
enough room, two nine volt batteries in series may work. Check the
schematic to see if the resistors can dissipate the power
(particularly the zero adjust)

504 batteries are still stocked and available $7 each (US)

Good project there, if you want to fool around. DC/DC converter
running from a D battery (assuming it uses D for the low ranges).

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