RCA 0C3 0C3 Vacuum Tube Valve NOS NIB

RCA 0C3 0C3 Vacuum Tube Valve NOS NIBThis new old stock, new in box RCA 0C3 regulator tube tested to spec on our Paul Hart calibrated TV7 U. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP TO

I LISTEN TO THESE TUBES IN TUBE EQUIPMENT

totally unsuited for use in guitar amps or any other vibratory environment

34 and 35 where minimum (65%) is 25

where minimum (65%) is 29 and 100% is 45

but standard in this variety

They both have World War Two-era SC 8762A US Army Signal Corp codes and nifty US Navy anchor logos

probably from the second half of the 1920s

These five US-made

One tube has far more visible getter flashing because of the getter's orientation deeper in the bottle

new in box RCA 25CD6GB tube tested to spec on our Paul Hart-calibrated TV7/U

All five were tested -- four in their boxes and the fifth in the normal manner

This new old stock-testing pair of Silvertone 224 globe