Raytheon Number / Type 41 #41 Vacuum Tube Black Plate Clear Bottle Engraved Base NOS-Testing Special Director's an silkscreened base

an silkscreened base

This lot of three US-made type 42 tubes was tested our Paul Hart-calibrated TV7/U for shorts

Transconductance measured 46 for Tube One and 48 for Tube Two where minimum (65%) is 40

Plates: gray ladder plate

Raytheon Number / Type 41 #41 Vacuum Tube Black Plate Clear Bottle Engraved Base NOS-Testing Special Director's an silkscreened baseThis new old stock testing Raytheon number type 41 tube tested 61 on our Paul Hart calibrated TV7 U where minimum (65%) is 40 and 100% is 62. It has an anode radiator for cooler operation and longer tube life; an engraved base; black plates, a clear bottle; a dimple 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