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THE AM BULLETIN BOARD => Technical Forum => Topic started by: WA4WAX on October 20, 2022, 06:55:07 PM



Title: Foo Fones
Post by: WA4WAX on October 20, 2022, 06:55:07 PM
OK gang.....I am concerned about present times.  Specifically, someone might give us a 200 to 400 KV per meter surprise.

Accordingly, I am looking around old magazines for simple, reliable tube sets.

Present your ideas here.  Think around town, and maybe tri-county.  Thanks.


Title: Re: Foo Fones
Post by: KB2WIG on October 21, 2022, 07:27:33 AM
Buy a rice box and place her into an old microwave oven. Mr. Faraday would be proud. 'Course, where the power comes from......?


Check this out,

https://worldradiohistory.com

KLC


Title: Re: Foo Fones
Post by: WA4WAX on October 21, 2022, 10:43:47 AM
I know the site well.

Some ideas:

https://worldradiohistory.com/Archive-Radio-News/50s/Radio-News-1957-06-R.pdf


https://worldradiohistory.com/Archive-Radio-News/50s/Radio-News-1955-08-R.pdf

These are starters.  The idea is tubes and simple. Think 10, 6, and 2.  Maybe 40 meters in the day time.


Title: Re: Foo Fones
Post by: WA4WAX on October 21, 2022, 11:04:57 AM
More.

https://worldradiohistory.com/Archive-Radio-News/40s/Radio-News-1947-02-R.pdf


Title: Re: Foo Fones
Post by: WA4WAX on October 21, 2022, 11:09:27 AM
Moving to HF.

I knew W4BIW.  He was at WSB for ages.

Idea: Change circuit to Colpitts oscillator.  6AQ5 instead of 6V6.


https://worldradiohistory.com/Archive-Radio-News/40s/Radio-News-1947-04-R.pdf
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