5703 Raytheon NOS 1950's (5 in stock)

5) 5703 Raytheon NOS 1950's in white boxes

5 leads

T3 Flat-Press subminiature 

UHF triode

Vil=6V @ 200ma

Mu=25

3.3 watts

5703=rugged 6K4

5703 variant is 6149

- Musical Fidelity Tri Vista 21 dac SACD