Perplexity AI calculating Zo of a two wire transmission line – comparison
with measurement – updated
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During the process of writing the article Analysis of output matching of a
certain 25W 144MHz PA an estimate was made of the characteristic impedance
Zo of...
8 hours ago
I thought the "mighty midget" was a receiver, so wouldn't the transmitter be "the mate"?
ReplyDeleteThis looks like it's from "The Radio Handbook", a late enough vintage that Bill Orr's name was on the cover.
On second look, it's fairly generic, not much beyond a block diagram.
But it reminds me, in the late fifties or early sixties, someone put together a transmitter, I think mostly with sub-miniature tubes. The intent was to either travel with it, or mail it, to get DX on the air with SSB. They'd have a receiver, and power supply, so an ssb transmitter that was small was all that was needed.
It was called "the Argonaut" and CQ ran an article, but pouting to "The Radio Handbook" for the schematic.
Of course, someone had a simple SSB transmitter in QST (and later the ARRL SSB Manual) called The Imp, and then later a transistorized version. I think the same author later had a tiny SSB transceiver.
Michael
I have that schematic on page 390 of the 18th edition of the Bill Orr Radio Handbook.
ReplyDeleteThere's also a five transistor slightly similar version on page 389.
This looks awfully familiar doesn't it Bill and Pete?! Which came first the IMP or this??
ReplyDelete