Later one of my ss 25m supplies had the output voltage drop to 6 8 volts. July 31, astron has since added some parts to the design. Ss18 47 kb pdf, dated 111998 ss25m, ss30m 483 kb pdf, dated. Made in the usa, our linear power supplies have reliably served commercial and ham operators alike for over forty years. Searched all over for copy of whatever manuals might have been available but cannot find anything. Astron diagrams, schematics and service manuals download for free. As for illuminating the meter, that is a piece of cake. This has to do with the power dissipation capability of the heat sinks and transistors on the back and sides of the supply. Apr 26, 2019 astron makes a standalone battery backup module that automatically switches to the battery source upon power failure. Seems ive acquired the most current model so i felt compelled to submit the changes i found. Dec 01, 2019 ive been using the same astron ss 30m power supply in my shack since i bought it in november 1998. The final version used polystyrene rod for the insulators. Describe your experience with the astron ss 25m and tell us why you give it the rating you did required.
View and download seiko astron complete user manual online. Astron corporation manufactures full line of reliable dc power supplies addressing the needs of consumer and professional users. Rm50a, rm50m, rs50a, rs50m originally had a 2009 schematic that did not match the parts list. This is a short note of thanks to you and your contributors for the top web site supporting astron s rs35m power supply. My ss25 blew a cap need to know what it was as well as the the part beside it. In 1980, astron brought on a line of dcdc converters. Emergency relief items catalogue 2002 power supply, astron ss30m. Here is an original astron owners manual for the rs50m and others in the 50 series. Why because even the rig manufacturers provide schematics, so should they. Having found the schematic online, i decided to bid. While all of them make excellent general purpose power supplies, many of the ss series supplies are designated to work with, and provide enclosures for, specific land mobile radios find astron ss series switching power supplies ss 30m and get free standard shipping.
Nov, 2017 these astron corporation battery backup modules are wonderful power supply accessories. Astron builds supplies for several major manufacturers. Do not be tricked into paying for a manual that is available here for free. So far it hasnt given me a bit of trouble, and has been used fairly hard at times. In comparing to the 35 amp series such as rs35m, the main schematic difference is that the rs50m has more pass transistors and a different handselected resistor r3x across r3 to detect maximum current allowed before foldback. All of this was done a couple of years before astron came out with their bb option. It appears you have a handle on operating the unit, even to the point of correcting meter errors. Service manuals, schematics, eproms for electrical technicians. For some new radio amateurs satron is a second language, and can better understand some electronics concepts and repairs via video youtube instruction or pictorial diagrams. Ss 50m custom base station switching power supplies. They switch your load to a backup battery upon power supply failureautomatically. As with all projects of this sort, you do this at your own risk, it voids the warranty, it could cause damage to the power supply, the equipment attached to the power supply, and surrounding property. While all of them make excellent general purpose power supplies, many of the ss series supplies are designated to work with, and provide enclosures for, specific land mobile radios find astron ss series switching power supplies ss 50m and get free standard shipping.
Nowadays it may be easier to just buy the bb version from astron but sometimes its more fun and more educational to roll your own. I purchased an astron ss 25m in august 2014 and set out to make it fit my needs. Astron 8x82, 8x22 series, 8x53 series, 8x82 series. Rs50ars50mrm50arm50m service manual by astron, transcribed by bob. Astron battery backup modules bb30m dx engineering. Sep 29, 2020 astron rsm manual open the supply after first disconnecting ac power and allowing for dc voltage to bleed down. I was wondering if anyone had a schematic for the astron ss30m switching power supply.
I need a schematic for an astron model ss 25 power supply, astrons site sucks and i urge all hams to boycot astron triplite and any other company that does not support us. I have two astron ss 25m and two ss 30 switch mode power supplies smps. I am now accepting new manuals for inclusion in this archive. A couple of years ago one of my ss 30 supplies quit with no voltage out during field day. Repairing astron ss25 and ss30 switching power supplies. Jan 05, 2020 astron rs35m service manual download, schematics, eeprom, repair info for electronics experts. Astron ss30 sch service manual download, schematics, eeprom. Jan 22, 2020 astron corporation ss series switching power supplies are highly regulated and designed for moderate to high power applications. These manuals are available for download and free of charge. Seiko astron complete user manual pdf download manualslib.
About a year ago i took a look at the ss 25m to see if i could figure out what was wrong. Other useful information would include your experience with similar products, infomation on a product that you would purchase instead of this one, and so on. Chfbdiveastron power supply, astron acdc 22012v 25 amps ss 30m, modified chf187. Jun 21, 2019 astron vs35m variable dc power supply gets an upgraded mosfet overvoltage circuit most other manufacturer sites i have visited have pdf download files for their equipment. May 20, 2020 astron corporation ss series switching power supplies are highly regulated and designed for moderate to high power applications. Since 1976, astron corporation has been a premier manufacturer of linear power supplies. Astron rs50m service manual download, schematics, eeprom. Astron ss30 service manual download, schematics, eeprom. No general information switch mode power supply, to power directly all radio equipment and recharge backupbatteries. If you desire an adjustable dropout, add a 30k trim pot to the board in series with the existing 62k resistor.
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