[HBR] HBR-11 Template??

[Hopperdhh at aol.com]

Hi Breck and all,

Years ago I  used a self excited 6BE6 product detector with a BC-453.  I 
just connected  the tuned circuit to the grid through the parallel RC (other 
end of the coil  grounded), and connected the feedback winding (the original 
grid winding)  between cathode and ground.  As I remember, I had to open up 
the can and  reverse the feedback winding so that the original grounded end 
went to the  cathode.

This is very close electrically to a Hartley oscillator  connection.  The 
difference being that the feedback is from a separate  winding to ground 
instead of from a tap on the coil.

Its been a long time  ago, like 1964!

Dan K9WEK



In a message dated 6/17/2011  11:52:35 A.M. Eastern Daylight Time, 
smithab11 at comcast.net writes:
I have  never been able to successfully use the 
Command Set BFO coil in a  Hartley
configuration. We would be interested in your 
results and a  diagram?
Breck k4che