I would like to bend/modify one of my Tascam MF-P01 four track cassette recorders so that I can control the playback/recording speed....
Has anyone done this before?
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Abandoned on Fire
Open it up and look for a trim pot near the motor. There'll likely be one that was used for calibration at the factory. It may only give you a few percent difference tho. Alternatively, you could cut the drive belt (or gear) and add a manual crank to the spool and control it that way. I think 8cylinder has a tutorial on that?
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Abandoned on Fire
Yeah scroll down to "manual drive tape deck" http://rhinoplex.org/8cylinder/
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seattle
i have one of these, but i've never thought to bend it at all. i may have to try this
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I have 2 (for bouncing purposes) ... But I'm thinking I might want to get a third one that I can bend... Maybe add pitch mod and feedback or something...
Ps..holy shit, Seatrash, you are one of my favorite chip artists! 
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Alright, so I finally managed to score a cheap one and hope to start bending it in the next few weeks...stay tuned!
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So, after opening it up and tinkering around a little bit, I ended up just adding a 1k pot before the motor to be able adjust the recording/playback speed. I wanted to add a distortion/feedback knob and also perhaps a tone knob but I couldn't figure it out...There is barely any room inside the thing, but a couple pots could still be added below where the track buttons are... so I may add these mods yet if I can get them figured out.
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Have you tried routing the output back to the preamp input? You might want to bypass the preamp, and go straight back to the amp.
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I tried connecting the input to the output with a pot...but without flipping over the pcb it's sort of hard to tell what's what...
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(Brother Android, another one of my favorite chip artists!)
It's about as simple as they get! I actually have 3 of these now, you can't really bounce tracks on them without at least 2...
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I'll probably end up bending one of the other ones too, instead of opening this one up again... I'll have to go a little more in depth to find the feedback mod and I'll probably add a simple rc lowpass filter too.
Last edited by RJL (Nov 30, 2014 3:58 am)
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Seattle, WA
RJL wrote:
(Brother Android, another one of my favorite chip artists!)
You kind of get these moments all of the time on the forums.
