Thursday, November 9, 2017

A Walkman to record at 7.5 ips?


Would it be possible?


Modifying one of those great portable cassette recorders or a great quality Walkman to record at 7.5 ips.


If a recorder is using 2 AA batteries then (at your own risk) modifying could accept 2 AA size lithium 3.7V batteries. The total voltage would be more than 7 volts and the motor could be made to run at extreme speed.


Then the playback EQ curves or amps modified or redesigned.


Same for the recording amps.


Everything should be more easy.


No hiss as the time constants would be much lower like on reel to reel.


No need for Dolby.


New designed heads for full 2 track stereo (all the tape width of the cassette).


Total running time would be 7.5 minutes.


More than enough to record a great song master.


With great JFET tiny transformer (Pleiades filters) input preamps.


Then connecting 2 or a few more moving coil microphones in parallel series combinations so no need for the complexity of a mixing (adding) console. Extremely simple and pure signal path.


Then digitisation can be possible as the signal would be instateniously peak limited, big and loud.


Portability at an unheard of sound quality.


The other alternative could be analog simulation of analog magnetic tape recording using saturated interstage transformers, "recording" premphasis and "playback" post emphasis. And then A to D conversion. See other euroelectron posts.




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