I thought about the AC Time delay timer but it requires AC 24 volts, it probably would work off of the ac side of the low voltage transformer but would still require a relay. I have some of the octal time delay relays I may use on of them.
The other thing I ran across was a carrier control timer (time out timer) from a Mastr II. It looks promising. It has an output that goes low when ptt is held low after a period of time adjustable from 45 seconds to 2.5 minutes and runs off 10 volts. I also found a 555 timer circuit that will work but I think it needed 5 volts. I will let you guys know if the GE carrier control works. tom > [Original Message] > From: sgreact47 <[EMAIL PROTECTED]> > To: <[email protected]> > Date: 4/20/2008 7:10:37 PM > Subject: Re: [Repeater-Builder] Need time delay circuit > > Ron Wright <[EMAIL PROTECTED]> wrote: > > > > Off the shelf 3 minute delay timers for air conditioners are common. > > 3 minutes might be a bit long. > > A very good solution. Even tho my 'boss' did not like it, I installed > something very similar on the filament transformer ac line side that > interrupted the PTT line. One of those 115 vac time delay relay in an > octal plug housing. > > One remote base was set to ten minuets to make sure the AC power was > stable and the afterburner tubes were well warmed up. > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > > > -- > No virus found in this incoming message. > Checked by AVG. > Version: 7.5.524 / Virus Database: 269.23.2/1387 - Release Date: 4/19/2008 11:31 AM
