Re: Mechanical video recorder
Posted: Sat Dec 07, 2019 5:28 pm
A good old-fashioned 'record player' that is mains powered will probably use a synchronous motor - I think called 'shaded pole', but I'm not certain. But better (expensive) and more recent 'Hi-Fi' turntables will often use a direct-drive motor which requires quite a bit of support electronics. They are generally low-voltage too.
You'd be looking for a donor record player (or a radiogram) from the 50s/early 60s probably. If you're lucky it'll also have a transformer for the the tube/valve amplifier, useful for CRT stuff...
Steve A.
Also, and I hate to say this, tape recorders...
...a trip to the local dump/tip/recycling place may be in order...
Be careful, if they've sat unused (probably) for many years check if you can turn the motor spindle to see if it's free and not seized. If it is get some penetrating oil, apply to the bearings every few days - gently try and turn the rotor with your fingers, if it doesn't move - more oil, more time...do not use pliers, mole-grips or any form of tool to move it...I've brought quite a few back to life this way....patience is the by-word, it can take weeks to free up...warmth (but not too much) helps, not really Melbourne's strong point!
You'd be looking for a donor record player (or a radiogram) from the 50s/early 60s probably. If you're lucky it'll also have a transformer for the the tube/valve amplifier, useful for CRT stuff...
Steve A.
Also, and I hate to say this, tape recorders...
...a trip to the local dump/tip/recycling place may be in order...
Be careful, if they've sat unused (probably) for many years check if you can turn the motor spindle to see if it's free and not seized. If it is get some penetrating oil, apply to the bearings every few days - gently try and turn the rotor with your fingers, if it doesn't move - more oil, more time...do not use pliers, mole-grips or any form of tool to move it...I've brought quite a few back to life this way....patience is the by-word, it can take weeks to free up...warmth (but not too much) helps, not really Melbourne's strong point!