I have a digital voice recorder, an Olympus DS-2, with which I make regular business recordings. I transfer these to cassette tape. I use the ear out to 'tape in' on a Teac 202 Mk3. ( I enter the equipment models in case it is significant to you).
I also have a portable Panasonic RQ-A220 cassette stereo recorder. I would like to transfer the DS-2 recordings at work using the RQ. The RQ only has a stereo 'mic' input.
Can I drive the mic input with the DS-2 earphone signal. I REALLY don't want to break this cassette recorder! I love this thing :-)
Perhaps a impedance matching network? If so, what values? I remember something like a pi network of resistors that you could build.