Re: COR\COS switch I can probably do that circuit up for you using one or two vn10 (aka 2n7000) type fets. If no one pops up with an easier circuit just let me/us know and I'll throw one out.
**** Sometimes it's betta' to work with bipolar transistors which tend to be easier to control in high rf areas. Fets just love to turn on with the greatest of unwanted ease so you have to always bypass them... in some cases triple bypass is the only thing that seems to work 100%. But since you're solar the mentioned fets should probably be used. Anyway.... let's also see what others have to offer. cheers, skipp www.radiowrench.com/sonic > "nvradtec" <[EMAIL PROTECTED]> wrote: > > This question has probably been answered before but here goes > > I am looking for a small,simple but reliable cor\cos switch circuit > so that I can take a high cor\cos signal and convert it to a low. > > I am doing a project in which the most reliable cor\cos is > at 5 volts but the PTT goes to ground, so I need to take > a high signal to ground for keying the TX radio. Also if the > receive radio looses power the TX radio wont key up. > > This project will be running on solar power. > > > Thank for your time > Steve >
