[Boatanchors] Cart Machines

[Bob Macklin]

I had forgotten about the audio cart machines. I was thinking about the 
video cart machines.

In 1968 I designed a system using a 4 track audio cartridge to hold digital 
data. We put 40K credit card numbers on a tape that played back in 15 
seconds at 15IPS.

That design led to the development of the floppy disk.

Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
----- Original Message ----- 
From: "Sheldon Daitch" <sdaitch at kuw.ibb.gov>
Cc: <boatanchors at mailman.qth.net>
Sent: Monday, March 14, 2011 7:35 AM
Subject: Re: [Boatanchors] Cart Machines


>
> Here is one site which shows a number of the
> audio cart machines over the years:
>
> http://www.oldradio.com/archives/hardware/carts.htm
>
> I've reloaded many a tape cart with new tape and new
> pads, as they have worn out.  The plastic shells even
> if broken, could be fixed with a solvent glue.
>
> White glue worked well to replace the pencil leads on
> the older Fidelipac platters.
>
> 73
> Sheldon
>
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