Analog FOREVER! Menus are For Restaurants! Hardware Defined Radio! Chris's PTO

Beautiful!  A Permeability Tuned Oscillator.   No need for a fancy variable capacitor -- that brass screw moving into and out of the coil varies the inductance and the frequency.  Collins style. 

Feb 20 at 6:58 PM

I also wanted to send you a shot of what today's project has been. It's WA6OTP's PTO.
I bought the plastic tube/screw/bracket from Jim and I provided the rest.
This is a 40 meter PTO that covers the entire 40 meter band.
A little Q dope secured the windings.
Chris
KD4PBJ

WA6OTP has a very nice PTO kit: 

http://www.wa6otp.com/pto.htm

And a lot more good radio info here: 

http://www.wa6otp.com/radio.html

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