[Collins] KWM-380 final transistor?

[Kenneth Grimm]

Can someone please tell me whether the SRF 3662 is a suitable 
replacement final transistor for the KWM-380.  I have a matched pair and 
a 380 with blown finals.  I have heard that the SRF 3652 and the MRF-421 
are acceptable, but unfortunately, those aren't the ones in my junk 
box.  Has anyone used the 3662 in a 380?
73,

-- 

Ken K4XL
k4xl at arrl.net

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