Designed to be used in the power output stage of AC-DC receivers. New old stock * New in Box * No longer available for export. MFR: Tung-Sol, Delco SKU: 35B5
Use in line-operated equipment having series-connected heaters. New old stock * New in Box * No longer available for export. MFR: GE, RCA, Sylvania, Westinghouse SKU: 35W4
Designed to be used in the output stage of compact AC-DC receivers. New old stock * New in Box * No longer available for export. MFR: GE, Westinghouse, Sylvania, TUng-Sol, Delco, RCA SKU: 50B5
Designed to be used in power supplies of AC/DC battery radio receivers. New old stock * New In Box * No longer available for export. MFR: RCA, GE, Westinghouse SKU: 117Z3