A simple 555 integrated circuit timer could be powered from a wall transformer to open the PTT line until the timer timed out and closed the contacts back. Of course, you could make it solid-state.
Steve ----- Original Message ----- From: "Paul Kelley" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, November 21, 2004 3:46 PM Subject: Re: [Repeater-Builder] GE-Moto (relay question) > > That's a great idea and I have been thinking along those > lines... just haven't engineered a workable solution yet. > > Paul > > > On Saturday 20 November 2004 09:25 pm, Kevin Custer wrote: > > Steve Grantham wrote: > > >How about running the exciter PTT or A+ through timed > > > relay contacts that will open on a power failure, and > > > then close again after sufficient time for a cold > > > switch to be made has elapsed? The brief interruption > > > of signal should be of little consequence to voice > > > users, and might also serve to notify nearby users that > > > a switch had been made. > > > > That would be a good start, however, was out of the scope > > of the project due to time constraints... > > > > Kevin > > > > > > > Yahoo! Groups Links > > > > > > > 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/
