Sylvania 6B4 6B4G Vacuum Tube Valve Output Tube Triode High Fidelity P-1100 This RCA 872A rectifier tube

This RCA 872A rectifier tube is used

63-29 188-20 date/EIA codes

It will also be also -- as time becomes available -- on our Paul Hart-calibrated TV7/U for a more-familiar point of reference for most

38 and 44 where minimum is (65%) is 36

Sylvania 6B4 6B4G Vacuum Tube Valve Output Tube Triode High Fidelity P-1100 This RCA 872A rectifier tubeThis Sylvania 6B4G tubes was tested on our Hickok Paul Hart calibrated TV7 U for transconductance, shorts and gas. There was no shorts or gas. It measured 54 for minimum (65%) is 38 and 100% is 58. It has 0 26 date codes; perforated plates; a dimpled sheet getter and outstanding flashing. 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