If you are lucky enough to have a big house, a large garden, and small children, this project just might interest you. It’s actually a telephone ringer capable of making any mains-powered device work ...

I recently went wireless only. Main problem now is that my phone's ringer isn't loud enough to wake me when I'm sleeping. I've spent 30 years training my friends that if they call after bedtime, it ...

It’s safe to say that few people still use rotary phones on a daily basis. Hell, most of us don’t even use landline telephones anymore. But just because these classic phones are no longer being used ...

Using modulated rectangular waves of different time periods, the circuit presented here produces ringing tones similar to those produced by a telephone. The circuit requires four astable ...

Maybe you are exceeding the REN load for your line. Each phone has a Ringer Equivalency Number on the bottom. Most lines can support an REN of 5. I suppose you'd have to ask Qworst.