About this item

• REPLACES: 20F20, 210, 413, 413A, 523, 8123, A413, B123, BA 305/U, BLR-123, BLR123, E210, ER-413, M123, S123, U20, VS085
• UTILIZED IN: Gooch & Housego OL Series 730-Ge Detector, Volt-Ohm Meters (analog devices for measuring Voltage, Ohms, and Milliamperes), including the Triplett 630, old transistor radios, the British Army Radiac Survey Meter Mark II, and unusual devices like the Minifon portable wire recorder.
• NSN # 6135-00-752-1589