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Frank's electron Tube Data sheets RCA - HB3 complete binders  

(up)date brand item size
(these are searchable pdf files)
2020-06-07 RCA HB3 binder 1 General Cathode-Ray, Storage, 1145 pages. 180,672,733 bytes
2020-06-07 RCA HB3 binder 2 Photo_Thy, Ign, Glow-Dis Misc, 1384 pages. 232,167,249 bytes
2020-06-07 RCA HB3 binder 3 Rec-Type Industrial, 716 pages. 137,903,650 bytes
2020-06-07 RCA HB3 binder 4 Rec1, 844 pages. 152,463,103 bytes
2020-06-07 RCA HB3 binder 5 Rec2, 817 pages. 152,058,130 bytes
2020-06-07 RCA HB3 binder 6 Transmitting, 1135 pages. 211,960,715 bytes
2020-06-07 RCA HB3 binder 7 data sheets removed, 1631 pages. 298,031,097 bytes