[sdiy] Do Electros Die Slowly?

[harrybissell]

I've played with make your own tape echo.

It can be done. Easy ways are to take a cassette recorder...
remove the erase head (but keep it connected to the circuit, and
shielded)

often the erase head is part of the bias oscillator !!!

Then move the record head to where the erase head was... and add another
playback head where the normal head was.  Preamp the new head and feed
back
into the record head.

Not an endless loop tape... so you get 1/2 hour to play before the echo
stops

AND its cool to listen to a fully recorded echo tape :^P

Another format was a 8 track tape with cassette heads inside. Here, you
can fit all three heads (if you are careful) Speed control can be normal
spped... then pass a variable voltage to the fast forward motor windings
for shorter delays.

Changing tape speed changes EQ. That is the big advantage of the
Echoplex
"sliding head" or the Roland "multi-head" designs.

Making your own Tape echo has the same or better chance of success as a
BBD
echo.  With the tape echo, you can get really high quality if you try...
same with BBD...

H^) harry  (digital delay man !!!)