Recording without an active device.
With its nice DC, biasing the tape.
Just a battery in series between the two and a fuse for safety. The fuse better be thinner than the recording head wire.
It may not work nicely. The driving impedance must be large to create constant recording current wrt frequency. But who knows?
Some of these questions may happen because of Panos discussing years ago about connecting a music signal to a head without even constant current premphasis and listen to what will happen.
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