BC-1255-A Signal CORPS U.S. ARMY Heterodyne monitor

Order N°. 674 DAY-44 SER. NO. 543

Manufactured by R.L. DRAKE COMPANY - DAYTON. O., U.S.A.

3 tubes : 2 x VT-212 ( 858 ) - 1 X VT-172 ( 1S5 )

	The military VT-172, civil 958 tube is a directly-heated filament-cathode triodes with the following pinout:  - 1:f+ 2:a 3:g 4:f- 5:f(ct) - used as cathode connection.
	The military VT-212, civil 1S5 tube

Frequency coverage: 70-150mHz

Powered by battery : 2 x 45 volts ( 90 volt) and 1 x 1.5 Volt

Dimension: 6" x 6" x 6" ( 6" cube )