[Collins] FW: RE KWM2A

[Frank Woolfe]

Can anyone shed some light on the reason of changing V13 (1st RX Mixer/Xtal
Osc) in the KWM2A from a 6U8A to a 6EA8?

 

Does the 6EA8 have better performance lower noise etc; and when was the
change implemented. It appears that there is no physical difference between
the two tubes or in circuit, so all I can surmise is that it is a
performance issue.

 

Frank VK5MFW