Ahh yes.? Aerotron used the 5894 in their base stations along with
the 6360 in their "lunch boxes".? IIRC, somewhere along the line
they used the 8643 also.
Andy? K9ATX
On 4/30/2025 8:34 AM, Mahlon Haunschild
- N4ZK via groups.io wrote:
Amperex had roughly half a dozen of these
push-pull tetrode types in their product line back in the day,
probably all targeted for the VHF/UHF land mobile radio
services.? All were single-ended input, push-pull output.?
Amperex even ran a full-page ad in the ham radio magazines /
handbooks for them.
The most famous of these (if you can call such a
thing famous) was the 5894, which was the tube used in the 100
watt PA in the Motorola Motracs.? I had a 10-watt Motorola
Business/Dispatcher that used the 6360 as a PA.
Best regards
Mahlon - N4ZK
"
The comment in the blurb
about frequent replacement
of the tetrode finals
make me wonder if the designers
were Tetrode Men."
?
Yes, it's easy to imagine
that development lab had some "politics" that impacted
the overall design ;-)
?
?
--
"Where the Old Soo crossed the New Soo"
Duplainville, Wisconsin
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