View Single Post
Old 1st Sep 2019, 5:38 pm   #3
G4YVM David
Heptode
 
G4YVM David's Avatar
 
Join Date: May 2014
Location: Salisbury, Wiltshire, UK.
Posts: 998
Default Re: Tentec Argonaut 515 restoration

Thanks John, some handy tips there.

Well one of my mrf476s is deceased so I'm replacing them both with 2sc1969s. The boarding resistor, R1, is fried black...whether the cause of it caused by the dead 476 I don't know. Thanks for the tip on the bias current.

I'll let you know how I get on

D
__________________
David, G4YVM.
G4YVM David is offline