D19 electron tube manufactured by United Technical Publications, listed as D19 (circa 1965).

D20 electron tube manufactured by United Technical Publications, listed as D20 (circa 1965).

D15 electron tube manufactured by United Technical Publications, listed as D15 (circa 1965).

CE70 electron tube manufactured by United Technical Publications, listed as CE70 (circa 1965).

CT14 electron tube manufactured by United Technical Publications, listed as CT14 (circa 1965).

CT13 electron tube manufactured by United Technical Publications, listed as CT13 (circa 1965).

CT12 electron tube manufactured by United Technical Publications, listed as CT12 (circa 1965).

CT06 electron tube manufactured by United Technical Publications, listed as CT06 (circa 1965).

CM05 electron tube manufactured by United Technical Publications, listed as CM05 (circa 1965).

CL64 electron tube manufactured by United Technical Publications, listed as CL64 (circa 1965).

CS12 electron tube manufactured by United Technical Publications, listed as CS12 (circa 1965).

D4G electron tube manufactured by United Technical Publications, listed as D4G (circa 1965).

D6 electron tube manufactured by United Technical Publications, listed as D6 (circa 1965).

30B electron tube manufactured by United Technical Publications, listed as 30B (circa 1965).

9A electron tube manufactured by United Technical Publications, listed as 9A (circa 1965).

5RP20 electron tube manufactured by United Technical Publications, listed as 5RP20 (circa 1965).

5RP10 electron tube manufactured by United Technical Publications, listed as 5RP10 (circa 1965).

CD19 electron tube manufactured by United Technical Publications, listed as CD19 (circa 1965).

CD15 electron tube manufactured by United Technical Publications, listed as CD15 (circa 1965).

CD10 electron tube manufactured by United Technical Publications, listed as CD10 (circa 1965).