[Milsurplus] Just had to comment - chirp

[mstangelo at comcast.net]

Thanks to all about the information about the Bruce Kelly and Philmore transmitters. The Philmore NT-200 is a two stage transmitter so I do not consider it a MOPA transmitter.

Does anyone remember the W5LET had single tube transmitters in Electronics Illustrated?

I built one using the 6AQ5A tube and it exhibited less chirp than my AC-1. It specified and coil only available from Allied Industrial division and had a long time delivery so I substituted a 4.5MHz television IF coil and it worked like a charm.

A copy of the article starts on page 100:

<https://www.worldradiohistory.com/Archive-Electronics-Illustrated/Electronics-Illustrated-1967-03.pdf>

Mike N2MS


> On 08/19/2024 10:16 PM EDT Robert Nickels <ranickels at gmail.com> wrote:
> 
> 
> On 8/19/2024 7:59 PM, Hubert Miller wrote:
> 
> > Philmore had a one tube Novice type transmitter, but not many sold, quite rare. 
> Hue,
> The Philmore NT-200 is a MOPA with 6V6 oscillator and 6L6 amplifier. It keys nicely - you can get the entire pictorial manual from BAMA. 
> 
> Did they make another ?
> 73, Bob W9RAN