Designed to function in the output stages of both AC and DC powered receivers. MFR: Zytron, RCA, Sylvania, Philco SKU: 7B5 New old stock * No longer available for export.
Designed to function in the output stages of both AC and DC powered receivers. MFR: Zytron, RCA, Sylvania, Philco SKU: 7B5 New old stock * No longer available for export.