hey guys
i found an old radio/type recorder in the dumpster and won big time,good clean 6V motor ,transformer ,2 loaded PCBs and im very happy
but i need your help with something here :
1- the transformer is clean i haven't tested it with my voltmeter until now but i was wondering how will i find the transformation rate if its not written in the case like normal transformer, is there any way other than using a voltmeter.
2-the other component is a microphone right ? , how can i test it ? , any advice you can give me as i have never worked with one before.
3- this DC jack (what is the proper name for it ?) has 3 pins and im wondering what the third one does? ,and how the pins are arranged when i want to use it, and if there is a pdf link to it that would be awesome.
thank you very much
i found an old radio/type recorder in the dumpster and won big time,good clean 6V motor ,transformer ,2 loaded PCBs and im very happy
but i need your help with something here :
1- the transformer is clean i haven't tested it with my voltmeter until now but i was wondering how will i find the transformation rate if its not written in the case like normal transformer, is there any way other than using a voltmeter.
2-the other component is a microphone right ? , how can i test it ? , any advice you can give me as i have never worked with one before.
3- this DC jack (what is the proper name for it ?) has 3 pins and im wondering what the third one does? ,and how the pins are arranged when i want to use it, and if there is a pdf link to it that would be awesome.
thank you very much
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