Pdf manual for astron rs 35m

These manuals are available for download and free of charge. View and download seiko astron 8x82 handy manual online. Adding a digital voltmeter to any astron power supply. Repairing an astron vs50m linear ham radio power supply. Ultimate astron power supply repair service manual schematics. Astron power supply schematics pdf cdrom ke3gk ebay. For example, the rs35a can deliver up to 35 amps at. Astron power supply ultimate service repair manuals schematics on dvd. 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 rs35m power supply schematic resource detail.

Astron diagrams, schematics and service manuals download for free. 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. You probably came to this web page because you have an astron supply that has problems. The circuit board is assumed to be identical to previous models until it can be examined. It is perfectly safe to leave the voltage control set to.

Astron rs35m power supply schematic annotated with. Rs 35a black rs35ablack peak output current a 35 amp, output voltage vdc. Astron also builds custom supplies for ge, icom, e. Astron vs series linear power supplies vs35m free shipping. Ultimate astron power supply repair service manual. For example, the rs 35a can deliver up to 35 amps at. Service manuals, schematics, eproms for electrical technicians. Schematics for astron rs 7, rs 12a, rs 20a, rs 20s, rs 35m, rs 35a, rs 70a, rs 70m. If you buy a supply that has a continuous duty rating sufficient. It had been involved in a nearlightningstrike experience that fried the loading coil on an antenna, among other things.

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. It appears that astron might simply have copied the manual from a 35 amp version and changed the numbers but forgot to change the four. The lights stay on but the volt meter drops and the radio shuts off. Front panel controls provide current limiting and voltage adjustment, while dual meters monitor the output condition. Astron power supplies rs35m free shipping on most orders. I did send a reply to astron informing them i was afraid i would have to pass on purchasing. Contact us below to inquire about any unlisted parts. Dec 04, 2011 last summer, a friend brought me an astron rs 35 power supply to repair. These astron corporation vs series linear power supplies offer continuous output current ratings from 9 to 57 amps at. The problem was that as soon as the supply was switched on, it would blow the fuse. When you are in need of reliable dc power supply, look no further than astron power supplies.

Mar 12, 2016 i have an astron vs 35m that i bought new about 18 months ago. Maintain regulation and low ripple at low line input voltage. In comparing to the 35 amp series such as rs 35m, the main. I have a vs 35m which is the variablevoltage version of your rs 35m. This is a short note of thanks to you and your contributors for the top web site supporting astrons rs35m power supply. Vr1 is a v150la varistor that conducts at voltages above 150 v, protecting the supply against input voltage surges.

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. Astron power supply ultimate service repair manuals. When using an rs series power supply with your cb radio or amateur transceiver, you will have less noise and other power related issues. Astron power supply index page astron ss30m service manual. Figure 7, rs 35m schematic this file is a scan of the rs 35m in png format. 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. 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. To open downloaded files you need acrobat reader or similar pdf reader program. It is a totally separate operation with no connections to the astron corporation that makes power supplies. Astron rs35m power supply schematic resource detail the. I provided my serial number and they were able to tell me it was manufactured in may serial. Troubleshooting and repair of an astron rs20m power supply. Seems ive acquired the most current model so i felt compelled to submit the changes i found.

Figure 7, rs35m schematic this file is a scan of the rs35m in png format. The astron catalog includes each models continuous duty rating. The circuit illustrated has been edited to conform to this model. A voltage meter is connected directly across the output. I hope they might help others looking for the same info as well. This video addresses some issues with an astron rs35a power supply. Learn a quick way to see if the pass transistors are all working. Listed under the technical referencepower supply category that is about power supply projects. You can add them to virtually any model astron power supply, metered or nonmetered. 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.

Rs50a rs50m rm50a rm50m service manual by astron, transcribed by. Astron rs 35a 11 15 volts adjustable dc linear power supply 25 amps cont 35 amps ics. Astron vs 35m variable dc power supply gets an upgraded mosfet overvoltage circuit. Apr 24, 2016 in comparing to the 35 amp series such as rs 35m, the main. 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.

Describe your experience with the astron rs35m and tell us why you give it the rating you did required. The diagram was cleaned and expanded to include all four pass transistors. 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. Our original linear power supplies now with anderson power poles. 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. Free astron diagrams, schematics, service manuals schematics. Astron is a company known for producing top quality products that stand the test of time. However, this is an ics rating, for intermittent duty only. Details about astron power supply schematics pdf cdrom ke3gk. Listed under the technical referencepower supply category that is.

Rs35m detailed parts list 56 kb pdf, goes along with larrys schematic. Separate volt and amp meters output voltage adjustable from 215 volts. 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. 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. Rs 35a, rs 35m 87kb pdf, dated 595 donated by mike morris wa6ilq. I often misplace items like this, so im hoping this will help me take better care of these. We have a small electric space heater in another room that when its internal thermostat turns it on my astron ps starts to hum. Here is an original astron owners manual for the rs 50m and others in the 50 series.

I use an astron rs 35m to run my 706 and a few accessories. Also, does anyone know of any rfi problems within certain bands for this supply. In the end, the repair turned out very simple, but my early celebration. To open downloaded files you need acrobat reader or similar pdf. Theory and repair of astron linear power supplies wb1gof. We offer astron power supplies as a high end solution for a 12 volt power source. Fold back current limiting protects power supply from excessive current and continuous shorted output.

The astron model numbers include their peak current rating. Does anyone have the schematic for the rs 35m, in particular the crowbar protection circuit. 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. Astron rs35m rs35a sch service manual download, schematics. Troubleshooting and repair of an astron rs20m power. Jun 22, 20 this video is about repairing a fellow hams astron vs50m linear power supply unit. 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. Fanspeed manual adjustment technology, black erd700awlf. The first surprise was when i saw that the circuit board and big capacitor were floating freely inside. While astron does a pretty good job, the heat sinking for the rs 35m, in figure 1. The voltage regulator circuit in the astron vs 35m and vs50m is not capable of going all the way down to 0 volts. Internal power supplies free delivery possible on eligible purchases.