[HBR] Radio design advice

[N2EY at aol.com]

In a message dated 5/30/06 8:59:40 PM Eastern Daylight Time, Tuchueh7 at cs.com 
writes:


> 6SB7Y was a popular converter in the early 
> fifties ham radio lit, said to be superior to the 6SA7 in both gain and 
> noise. 

6SB7Y is equivalent to miniature type 6BA7. 6SA7 is close to equivalent to 
miniature type 6BE6.

To my knowledge, 6SB7/6BA7 is the best pentagrid made (lowest noise, highest 
conversion transconductance).

73 de Jim, N2EY