No box. Glass etched "6146 AEB". Base printed "RCA Electron Tube" and "IBM Part No. 3000533". Tested good on Hickok 600A with 6250 transconductance measurement. $35 w/free shipping CONUS. 14 day return - buyer pays return shipping.
Bob AG5X _______________________________________________ Boatanchors mailing list [email protected] https://puck.nether.net/mailman/listinfo/boatanchors
