I'm head of systems at a student radio station, and whilst my knowledge of audio based equipment isn't too bad, my knowledge of circuitry doesn't extend much past what I picked up in school, and doing some basic work on electric guitars.
We recently inherited a new mixing desk at our radio station, its a PA desk rather than a Broadcast desk, but we were offered it at such a low price we couldn't turn it down. The main difference in the types of desk is that a broadcast desk has a monitor cut off, i.e when the microphone volumes are turned up, the monitors in the studio cut off.
My plan is to build a small circuit which will create a monitor cut off. My initial thoughts are to use a tamper switch in contact with the microphone slider, which will turn the monitor amplifier on and off. I'd also like to use the circuit to turn on an 'on-air' light, whenever the microphone slider was up. My initial thoughts were to use a relay to switch on and off the monitor amplifier power, and similarly to switch on the on air light. I'd also like to power the entire thing by mains, rather than battery, as it will be in constant use by lots of different people, and i don't want it to be cutting out when the battery dies.
Basically, i'm looking for any help with regards to putting together a simple schematic and list of parts I would need.
Sorry if i'm not 100% clear in what i'm trying to achieve, i've tried to be concise without writing an essay!
Thanks
We recently inherited a new mixing desk at our radio station, its a PA desk rather than a Broadcast desk, but we were offered it at such a low price we couldn't turn it down. The main difference in the types of desk is that a broadcast desk has a monitor cut off, i.e when the microphone volumes are turned up, the monitors in the studio cut off.
My plan is to build a small circuit which will create a monitor cut off. My initial thoughts are to use a tamper switch in contact with the microphone slider, which will turn the monitor amplifier on and off. I'd also like to use the circuit to turn on an 'on-air' light, whenever the microphone slider was up. My initial thoughts were to use a relay to switch on and off the monitor amplifier power, and similarly to switch on the on air light. I'd also like to power the entire thing by mains, rather than battery, as it will be in constant use by lots of different people, and i don't want it to be cutting out when the battery dies.
Basically, i'm looking for any help with regards to putting together a simple schematic and list of parts I would need.
Sorry if i'm not 100% clear in what i'm trying to achieve, i've tried to be concise without writing an essay!
Thanks