[Test-Equipment] Fluke 840A Galvanometer

[Miles Anderson]

I'm looking for a schematic (or preferably a service manual) for a Fluke
Model 840A Electronic Galvanometer. It's physically small - about the size
of two VCR cartridges with a brushed chrome panel, a mechanical meter and a
black concentric switch. Connections are at the back. Judging from what's
inside it probably dates from the early 70s and seems to include a chopper
stabilized dc amplifier.
Miles Anderson, K2CBY
16 Round Pond Ln
Sag Harbor, NY 11963
k2cby at optonline.net