[Amps] Tube Identification

Steve Thompson g8gsq at ic24.net
Wed Oct 5 02:28:30 EDT 2005


Robert Dorchuck W6VY wrote:

>Can anyone help me identify a couple of tubes.  They look like 4CX250B's.
>  
>
Likelyhood is they are 4CX250s, with custom marking to secure spares 
business at generous prices. Sometimes there's non-standard testing to 
verify particular characteristics for the customer.

Steve


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