Re: [Repeater-Builder] Re: interface to shut off a radio on temporaly base

[Fred Townsend]

skipp025 wrote: "gervais fillion" <[EMAIL PROTECTED]> wrote: well fred this is in interesting discussion here i dont have all the knowledge to work on the modification too fit the controler you see so i must pay for it in a telecom company here every time i need to do something on it (as many others too ) One reason why this group is here... to take the rocket science out of repeater and radio work/projects. With enough information, it would not be a problem to do the modification yourself. these MSR are so rare to find good one around here, sometime you may find one but when you see it you wonder why it is not at the scrap yard,,,,they are so used and dirty. I pull the cards, receiver, transmitter, power amplifier and power supply from the chassis. I then mix up a bucket of warm water - Spic and Span and scrub down everything. Hose all the soap out and let it dry in the sun or a warm shop with air moving by it. A warm towell and a compressed air supply help blow out the remaining moisture. I'd like to second Skipps comments and add one of my own. At the factory we used ordinary dish washers (until we got the commercial washers) to clean PC boards.  Most components are water safe. Exceptions, are non hermetic parts like switches and transformers; things with paper or bakalite coil forms.  Spic and Span is a little harsh. For general cleaning, including automatic dish washers, useArm and Hammer baking soda. If you think someone has used an acid flux (sometimes necessary to solder nickel or steel) clean with ammonia before the baking soda. Finally if you have rosin flux isopropyl alcohol works well. Don't use rubbing alcohol (contains water) or use alcohol in the automatic dish washer (it will burn). Fred AE6QL For the most part, there is nothing left in the cabinet that will be damaged by a good cleaning if you can remove the remaining clean water/moisture within a reasonable time frame. Micor or MSR hardware can be cleaned up pretty well. ,it will not happened often this "turn on and off event" so it will not damage the equipment. The MSR Power supply - Ferro Resonant transformer is very hard to kill. I doubt you'll hurt the repeater/base. i remember seeing somewhere on the web an australian that built a board that what use to turn on and off a remote wheater station ,,,that was operate via a repeater ,,, another thing to find A number of dtmf controllers are available. Most are repeater controllers. I mentioned the hamtronics unit because it is well suited for the your task. good luck skipp Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ YAHOO! GROUPS LINKS  Visit your group "Repeater-Builder" on the web.    To unsubscribe from this group, send an email to:  [EMAIL PROTECTED]    Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.