[sdiy] OT Tape play heads

[frey at radioles.com]

Hello all, I built a tape loop “violin” a couple of years ago with acceptable success. The biggest issue is I am making loops on a stereo reel to reel and am playing them back on a stereo play head from a very old reel to reel that is mounted on the “violin” so alignment as I pass the loop across the fixed play head is an issue. I am asking if anyone has advice on this? Are there mono reel to reel play heads that have larger areas? Even info on how to determine efficiency of the dynamic range(?) of the output or old brands or if an old dictation machine(mono) might make a better donor. Thanks for the help. JoeF.
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