div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: · PDF fileINPUT f o- UC-IO RCA-BIO c 10 HAM TIPS from RCA RCA FILAMENT TYPE ACORN TUBES FB FOR U HF UNITS Three New RCA Tubes Ready for Experimenters src=https:reader034vdocumentinreader034viewer20220427085a7875da7f8b9a77438d4d90html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: · PDF fileINPUT f o- UC-IO RCA-BIO c 10 HAM TIPS from RCA RCA FILAMENT TYPE ACORN TUBES FB FOR U HF UNITS Three New RCA Tubes Ready for Experimenters src=https:reader034vdocumentinreader034viewer20220427085a7875da7f8b9a77438d4d90html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv