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Casio FX-502P with PA-1 connector

FX-502P FA-1

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#1 leviset



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Posted 06 July 2021 - 10:48 AM

I’m pretty much a ‘Pure Mathematician’ and pretty useless at ‘Applied’ sciences like practical  electronics or anything that involves making/soldering etc which reared its head when aged 14 at a Boy’s Grammar School when I was thrown out of woodworking for ‘making’ the worst pencil box the teacher had ever seen!

So I’ve just picked up a Casio FX-502P calculator with PA-1 connector in working condition. 
Can anyone help me to understand the following project I’m trying to do please?


The black and the white mini plugs fit perfectly into my vintage cassette and reel to reel players to save and load programs. What I’m trying to do (please don’t ask why as it’s just curiousness!):-


Can I connect the FA-1 to a digital recorder - I have both a Zoom H2N and a Sony Minidisc player or does it all have to be in the ‘analogue world’?


#2 piu58


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Posted 08 July 2021 - 07:01 PM

A digital recorder uses an anlog to digital converter for storing and an digital to analog converter the way back. So it should work.


It is necessary however, that the voltage level is right. If you use an earphone plug at the recorder it should and may be adjusted with the volume keys.


The only problem which could arise are high frequent signals at the output. You won't have such things in the analogue world, but it may be happen in digital devices. If they are beyond 20 kHz the are unheard, but may be seen by the electronics.

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