5R4 GYB Tube
Click here to view of the schematic for an RCA designed 50 Watt 4 Stage HiFi Power AB Amplifier
Click here to view a complete copy of the RCA Receiving Tube RC-30 Manual – 1975
Click here to learn more about the 5R4 GYB Tube at The Valve Museum
Click under the DOCS link above to view full page schematic and parts list.
Click on the blue link to download a copy of the RCA Receiving Tube Manual – RC30 – 1975 – File Size 37.2MB:
RCA Receiving Tube Manual - RC30 - 1975 - 37.2MB
Click here to visit a guitar amplifier building resource site.
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