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Ad Detail with Enlarged Photo for Listing #1722563

TUBES - FS: Amperex 4CX250F Ceramic Tube

NOS Amperex 4CX250F Ceramic output tube. Tube was mistakenly purchased to replace a 4CX250B. As we found out, the circuit for the 4CX250B is a 6 Volt filament as is the 4CX250B. We then found out that the 4CX250F uses a 26.6 Volt filament source…… so this tube is up for sale as maybe it was developed for military use with that filament voltage? $30 shipped CONUS. Not interested in trades.

Listing #1722563 by KH6JTM
Last Edited on 04/20/25
Submitted on 03/16/25
Submitted from c-73-242-208-180.hsd1.nm.comcast.net
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