While this is listed as a 'restoration' it's actually a complete gut job with only the He scanned then redrew and corrected the schematic so it matched the actual unit this drawing Stu opened his brand-new supply and took several photos, showing what's been added or changed. This article describes what he discovered and how toĭeal with putting a new board into an old supply.Īn evaluation of a 2009 Astron RS35M supply Installing a New Regulator Board in an Old Astron PowerĪfter the board burned up, Tom bought a new one from Astron. So the next guy will know what the little circuit on the piece of perfboard is for.Īstron's documentation shows an extra LED indicator, which is not actually part of the OVPR-12V.Ī photo of Astron's OVPR-12V board (found on the web). Just remember to print the page and leave a copy inside the case If you are inside your Astron for some other reason it's worth adding this circuit as longĪs you have the cover off. Series A reset circuit provided by The Astron Corporation - they call it Custer W3KKCĪn internal reset circuit for the Astron Linear Linear Power Supplies Modification Articles Power Supply Model Information Repair and Operation Articles Reset Circuits Slim-Line Linear Power Supplies 28 Volt Linear Power Supplies Switching Power Supplies Switching Regulated Voltage ConvertersĪn external reset circuit for the Astron Linear LM723 voltage regulator integrated circuit.

The Pyramid Gold Series linear power suppliesĪre very similar in design and capacity to the Astron supplies.

It has some very useful information on the Astron linear and switching power supplies, withīackground, history, model-specific information, both repair and modification suggestions, Information article before any of the other articles here in the Astron section It is a totally separate operation with no connections to the AstronĪstron makes both linear and switching power supplies, and some other products. Note: there is an Astron Wireless Technologies company that makes Click here or the logo above to go to Astron's web site

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