[Elecraft] Question on transformer (torroid)

Gregg Lengling glengling at ameritech.net
Tue Aug 3 21:29:04 EDT 2004


I'm working on a Rev A board and noticed that on the coupling transformer to
the IF amp that it is built different than the Rev B models.
On this one the Red (3/4) windings are 11 and the Green (1/2) windings are 3
On the Rev B the Red (3/4) windings are 20 and the Green (1/2) windings are
5.
My question is now that I've made all the upgrades to Rev B and am having
problems in this area of the circuit (ie:  low sensitivity and all the
stages prior are working properly), should I rebuild this torroid??

Thanks in Advance.


Gregg R. Lengling, W9DHI, Retired
Administrator http://www.milwaukeehdtv.org
K2/100 S#3075 KX1 S# 57
Member:  ARRL, RSGB, RCA, WERA and ORC
 






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