[R-390] RE sensitivity below 8mHz

[Pete Williams]

G'day list...
I have  experienced the  same problem of lower sensitivity on bands below 8 mHz . The 
first xtal oscillator V207
injects 17mHz into cathode of  first mixer V202 for this range . I have suspected the 
injection level is possibly lower than optimum and while not actively investigating, 
I have made vast improvement in several radios  by retuning the  core of T207 which 
is the coupling xfmr to the first mixer cathode.
One might also suspect that xtal activity in this  circuit is  below par-- hence the 
problem. There appears to be little reference to this alignment point in the 
literature .
Cheers
Pete

Pete D..Williams
METUNG, 3904
AUSTRALIA
jupete at bigpond.net.au