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Simpson 657 Milliohm Adapter for model 260,261 or 270. Overall appearance is very good. No cracks, chips or significant scratches on the black Bakelite case. Front panel is excellent except for dirt that comes off easily & a blemish or stain that probably won't come off. Panel markings are excellent. Chassis & battery compartment very clean. Measured a short piece of nichrome wire at .1 ohm. Test clips are flaky, I'd replace with alligator clamps. Includes manual )& what's left of the original box if you want it). Missing 2 case screws. Requires one 9 Volt batt(not modern size) & 2 "D" cells. Measures 5.5"W, 4"D, 4.5"H. Item #9188

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