000 00243 a2200085 4500
245 0 _aPopular tube/transistor :
_bSubstitution guide /
_c.
250 _a2 edition.
710 2 _aTAB.
_eWydawca
_4pbl
260 _aBlue Ridge Summit :
_bTAB,
_c1970.
300 _a224 s.;
_c24 cm.
999 _c10595
_d10595