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4B32 Amperex NOS original boxes sold as-is
$14.70$49.00 -
4C35 Kuthe Labs made for Marconi 1951 low hours/like new
$30.00$99.99 -
4CX250B=7203 Amperex used in Eimac box as-is
$15.00$49.99 -
4CX250B=7203 RCA open box 1971
$45.00$149.99 -
4D22 Raytheon display tube
$6.00$19.99 -
4E27 Gammatron used 1940”s good filament
$6.00$19.99 -
4E27 RCA used 1950 good filament
$6.00$19.99