[ARC5] Re-reading Gordon White article...L-2 in a 'command' receiver

[Kenneth G. Gordon]

On 6 Jun 2013 at 0:00, Mike Morrow wrote:

> Ken wrote:
> 
> > In every case, the resonant frequency of L-2 is way below the
> > lowest frequency the receiver will tune.
> 
> Here's what the June 29, 1940, ATA/ARA instruction book has to say
> about L-2:
> 
> "C-39 (across L-2 in the 190-550 KC receiver only) serves to tune L-2
> to a frequency lower than 190 KC, and by so doing increase the
> amplification of signals at the low frequency end of the tuning range.
> This assists in producing a reasonably uniform receiver sensitivity
> over the tuning range.  The plate to screen capacitance of the RF
> amplifier tube, Type 12SK7, and the wiring capacitance to L-2, perform
> a corresponding function in all other receivers."
> 
> That, no doubt, would be the explanation that Dr. Drake would give
> you.
> 
> Mike / KK5F

That makes complete sense, Michael. Thank you.

Another reason for me to think that those ARC engineers were geniuses...

It appears that they thought of every possibility and dealt with it 
appropriately.

Amazing!

Ken W7EKB