In the last period is on the market and on various exhibitions and exchanges in OK and OM they discover power supplies bearing the label Astron RS-xxA (S, M, BB) and the like. Many have bought them - either new with warranty, or second hand.
A problem arises the moment the device breaks down, or it stops working as expected.
Then the owner starts looking for information about origin of the device, manufacturer, wiring diagrams, possibly service contacts.
You will read in the article
Origin and manufacturer
These power supplies come from comprehensive product line of the American company:
Astron Corporation
9 Autry
Irvine, CA 92618
USA
The concept of these resources is built on the well-known integrated circuit LM723, which was created by the company Fairchild Semiconductor already in the 70s.
The meaning of the designation of models
Source designation not only indicates the model range, but also maximum current load of the given model.
Letters behind the current value have a specific meaning:
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M – metering option (the source is equipped with measuring devices)
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S – speaker version (version with built-in speaker)
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BB – battery backup option (possibility of connecting a backup battery)
Interesting
It's not without interest, isn't it designers, service technicians, salespeople and the company owners themselves they are radio amateurs. Thanks to that, they are all Astron products maximally customized for use just with radio amateur technique.
Wiring diagrams and information
Complete wiring diagrams of all types of Astron sources, as well as further technical information and contacts, you can find on this page: https://www.repeater-builder.com/astron/astron-index.html
73, Petr OK1RP