Tester of radio tubes of the `` IL-14 '' type.

Instruments for adjusting and controlling the PTA.Tester of "IL-14" type radio tubes since 1956 of the Gorky Frunze Plant. The "IL-14" type radio tube tester is designed to quickly assess the degree of operability of radio tubes, both receiving-amplifying and diodes, kenotrons, stabilizers, as well as low-power generator tubes.