[Boatanchors] TCS RX: Collins, You Continue to Impress.

[David Stinson]

In the quest to get the TCS station ready for Novice Rig Roundup, 
I'm working toward a non-destructive selectivity solution similar 
to the Collins Mechanical Filter Adaptor I wrote about previously 
(thank you, thank you, Clare!).  That device works very well but 
is too tall to allow the receiver to be put back into the case. 
Moreover, it was designed for the HRO or SuperPro and provides 
far too much gain for this application.   I don't want to 
"ham-mer" it to fit.  Besides; I have a nice HRO waiting.

While considering a plug-in adaptor to replace the 2nd IF 12SK7, 
just out of curiousity, I removed the tube and jumpered a .1 cap 
from Grid to Plate pins, directly connecting the 2nd IF input and 
output IF transformers (pins 4 and 8).  To my surprise, I had a 
nice AM QSO with the local guys with plenty of speaker level.  On 
40 CW, there is plenty of audio in my headphones for contacts. 
Even DX stations were clearly audible.   This is going to make 
the task easier.
How many receivers can you name that will comfortably QSO with 
one of its tubes removed?
Mr. Collins, you continue to impress.

73 DE Dave AB5S