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. Separate volt and amp meters output voltage adjustable from 215 volts. Here is an original astron owners manual for the rs 50m and others in the 50 series. Astron 35a linear power supply, 35a ics 25a continuous, separate voltage and amp meters, 5x11x11in astron rs35m javascript seems to be disabled in your browser. To open downloaded files you need acrobat reader or similar pdf reader program. Repairing an astron vs50m linear ham radio power supply. Fold back current limiting protects power supply from excessive current and continuous shorted output. I hope they might help others looking for the same info as well.
Mar 12, 2016 i have an astron vs 35m that i bought new about 18 months ago. The diagram was cleaned and expanded to include all four pass transistors. Astron rs35m rs35a sch service manual download, schematics. At one point i was visiting a client in in irvine and used the opportunity to stop in at astron to pick up a rs 20a and rs35m schematic, and casually asked if i could buy the lower half sheet metal of an rs 20m plus the meters to upgrade my rs 20a to an m series. Dec 04, 2011 last summer, a friend brought me an astron rs 35 power supply to repair. The circuit board is assumed to be identical to previous models until it can be examined. While astron does a pretty good job, the heat sinking for the rs 35m, in figure 1.
Astron builds supplies for several manufacturers for example a kenwood kps12 is based on the astron rs 12, the motorola rrdn6933a is an rm35abb and the motorola hpn9041 45 kb pdf is an sl15m variant. Ultimate astron power supply repair service manual schematics. It is a totally separate operation with no connections to the astron corporation that makes power supplies. Seems ive acquired the most current model so i felt compelled to submit the changes i found. Listed under the technical referencepower supply category that is about power supply projects. Astron vs series linear power supplies vs35m free shipping. Does anyone have the schematic for the rs 35m, in particular the crowbar protection circuit. Note that the astron supplies are advertised with peak duty amperage numbers and in continuous duty can supply only about half of the rated current that is, a twenty amp astron can in reality supply only about ten amps continuously. Rs 35a, rs 35m 87kb pdf, dated 595 donated by mike morris wa6ilq. For example, the rs 35a can deliver up to 35 amps at. When using an rs series power supply with your cb radio or amateur transceiver, you will have less noise and other power related issues.
Describe your experience with the astron rs35m and tell us why you give it the rating you did required. Astron rs35m power supply schematic resource detail. To open downloaded files you need acrobat reader or similar pdf. In comparing to the 35 amp series such as rs 35m, the main schematic difference is that the rs 50m has more pass transistors and a different handselected resistor r3x across r3 to detect maximum current allowed before foldback. Internal power supplies free delivery possible on eligible purchases. When you are in need of reliable dc power supply, look no further than astron power supplies. Also, does anyone know of any rfi problems within certain bands for this supply. Figure 7, rs 35m schematic this file is a scan of the rs 35m in png format. This video addresses some issues with an astron rs35a power supply. Vr1 is a v150la varistor that conducts at voltages above 150 v, protecting the supply against input voltage surges. In comparing to the 35 amp series such as rs 35m, the main. It had been involved in a nearlightningstrike experience that fried the loading coil on an antenna, among other things.
Rs50a rs50m rm50a rm50m service manual by astron, transcribed by. Adding a digital voltmeter to any astron power supply. Float modification for the rs rm35as schematic of the astron rs 35am with. I have a couple rm 35m power supplies where the meter lamps quit. However, this is an ics rating, for intermittent duty only.
We offer astron power supplies as a high end solution for a 12 volt power source. Ultimate astron power supply repair service manual. Our original linear power supplies now with anderson power poles. In the end, the repair turned out very simple, but my early celebration. Astron diagrams, schematics and service manuals download for free. Contact us below to inquire about any unlisted parts. 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. Astron power supply schematicsin adobe pdf format on cdrom rs 7a rs 12a rs 20a rs 35a rs 35m rs 70a ss30 rm50a rs 50m for windows pc if you use mac or linux let me know 111153545898. I did send a reply to astron informing them i was afraid i would have to pass on purchasing. Jun 21, 2019 astron vs 35m variable dc power supply gets an upgraded mosfet overvoltage circuit most other manufacturer sites i have visited have pdf download files for their equipment.
Rs35m detailed parts list 56 kb pdf, goes along with larrys schematic. You probably came to this web page because you have an astron supply that has problems. Apr 24, 2016 in comparing to the 35 amp series such as rs 35m, the main. This astron hit the bench with the symptoms of very low voltage around one or so volts and high current up over 25 amps without any load connected. We have a small electric space heater in another room that when its internal thermostat turns it on my astron ps starts to hum. I provided my serial number and they were able to tell me it was manufactured in may serial.
Figure 7, rs35m schematic this file is a scan of the rs35m in png format. Astron also builds custom supplies for ge, icom, e. These astron corporation vs series linear power supplies offer continuous output current ratings from 9 to 57 amps at. This is a short note of thanks to you and your contributors for the top web site supporting astrons rs35m power supply. These manuals are available for download and free of charge. Astron 35a linear power supply, 35a ics 25a continuous, separate voltage and amp meters, 5x11x11in astron rs 35m javascript seems to be disabled in your browser. Listed under the technical referencepower supply category that is. Astron vs 35m variable dc power supply gets an upgraded mosfet overvoltage circuit. Free astron diagrams, schematics, service manuals schematics. Jun 22, 20 this video is about repairing a fellow hams astron vs50m linear power supply unit. Rs 35a black rs35ablack peak output current a 35 amp, output voltage vdc. The astron model numbers include their peak current rating.
You can add them to virtually any model astron power supply, metered or nonmetered. Troubleshooting and repair of an astron rs20m power. In comparing to the 35 amp series such as rs 35m, the main schematic difference is that the rs 50m has more pass. Front panel controls provide current limiting and voltage adjustment, while dual meters monitor the output condition. The lights stay on but the volt meter drops and the radio shuts off.
If you buy a supply that has a continuous duty rating sufficient. Astron rs35m power supply schematic annotated with. It is perfectly safe to leave the voltage control set to. I have a vs 35m which is the variablevoltage version of your rs 35m. Jan 22, 2017 this astron hit the bench with the symptoms of very low voltage around one or so volts and high current up over 25 amps without any load connected. View and download seiko astron 8x82 handy manual online. Maintain regulation and low ripple at low line input voltage. The problem was that as soon as the supply was switched on, it would blow the fuse. Details about astron power supply schematics pdf cdrom ke3gk.
Astron vs 35m variable dc power supply gets an upgraded mosfet overvoltage circuit most other manufacturer sites i have visited have pdf download files for their equipment. Astron power supply ultimate service repair manuals schematics on dvd. Learn a quick way to see if the pass transistors are all working. Astron power supply index page astron ss30m service manual. Astron power supplies rs35m free shipping on most orders. I often misplace items like this, so im hoping this will help me take better care of these. The astron catalog includes each models continuous duty rating.
The first surprise was when i saw that the circuit board and big capacitor were floating freely inside. Troubleshooting and repair of an astron rs20m power supply. For example, the rs35a can deliver up to 35 amps at. A voltage meter is connected directly across the output. Theory and repair of astron linear power supplies wb1gof. The circuit illustrated has been edited to conform to this model.
I use an astron rs 35m to run my 706 and a few accessories. Fanspeed manual adjustment technology, black erd700awlf. May 20, 2019 a look at the astron rs 35a use a recent version of the adobe acrobat reader and just mouse over the yellow folder symbols. Astron power supply schematics pdf cdrom ke3gk ebay. Astron is a company known for producing top quality products that stand the test of time. Astron rs 35a 11 15 volts adjustable dc linear power supply 25 amps cont 35 amps ics. Astron power supply ultimate service repair manuals. Service manuals, schematics, eproms for electrical technicians.
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