Special Features:

Focus magnet, red metal, -dia. 18.00 inches by 14.470 in. High; -contains 6 tuners and 5 exhaust holes in core; focus coil must be compatible with electron tube, klystron; has 2 leadwires, 1 red pos and 1 black neg; function: magnet, focus per pds 23680; reference data: l1, ti-6310.25, asr-9 system, fa-10065, sec 1-11, pg 8-4

Properties:

An item generally consisting of one or more turns of wire or similar conductive material (in special cases it may be considered as a partial turn). It is specifically designed to concentrate magnetic flux generated by the flow of an electric current, to induce in itself an electromotive force, and to add or subtract inductive reactance in a circuit. It may include tuning devices, integral resistors and capacitors; however, excludes filter (as modified). For coils wound on resistors which are designed to be inserted into the circuit of a radio frequency stage to suppress high frequency parasitic oscillations, see suppressor, parasitic..