Jack, back in the dqay, This unit was called a bell box. From back in the '30's and '40's, it was connected to a circuit with a desk telephone set that had no bells of its own. It was quite loud when it rang.
I've only just found your channel Jack and I think the way you talk through your process is really easy to follow. I find it fascinating to watch people solving problems, their thought process and their reasons for doing it even if it goes wrong 👍👍👍.
I’d rather include my mistakes too, helps people see where they might go wrong or why I’ve ended up doing something the way I have. I was convinced that ringing generator was all I needed!
They have a resistance of about 1kOhms and you can drive them from as low as about 24VAC. Frequency is up to you really. You can use a bipolar stepper driver to generate a signal.
Jack, back in the dqay, This unit was called a bell box. From back in the '30's and '40's, it was connected to a circuit with a desk telephone set that had no bells of its own. It was quite loud when it rang.
Oh ok, I figured it was an extension or repeater bell rather than the ‘only’ bell for a telephone. Interesting!
I've only just found your channel Jack and I think the way you talk through your process is really easy to follow. I find it fascinating to watch people solving problems, their thought process and their reasons for doing it even if it goes wrong 👍👍👍.
I’d rather include my mistakes too, helps people see where they might go wrong or why I’ve ended up doing something the way I have. I was convinced that ringing generator was all I needed!
Love it, I was searching around to make my bell work and figure out the voltage supply, the WiFi aspect is extra unexpected info though.
Hey thanks, glad it helped out, thanks for watching!
You dont need the 3.3 k resistor which is only needed if connected to a plug and socket telephone line to match the 4k impedance of the phones
Hi what voltage do you need for these bells
70v 25hz
They have a resistance of about 1kOhms and you can drive them from as low as about 24VAC. Frequency is up to you really. You can use a bipolar stepper driver to generate a signal.