cassette port connector

From: Jim Brain (
Date: 2008-12-09 06:15:01

A couple questions:

   1. Anyone have a reasonable source for the .156" connectors that go
      on the cassette port?  All I can find here is Digikey for $1.72 in
      quantities of 100
      Better yet, anyone have a source for a connector without the
      mounting tabs?
   2. FOr the next batch of uIEC units and C=Key units, I need to design
      a small pass-through PCB that people can grab onto when inserting
      or removing the connector from the computer.  But, if I have to
      create a PCB, I thought I might design something on it.  Something
      cheap that I might be able to offer at cost or maybe as a freebie
      if you buy the other units:
         1. My initial thought was a small standalone cassette drive
            emulator that would hold a small program.  For those without
            a resident wedge that hook RUNSTOP/SHIFT to a disk load, a
            small program on "cassette" could load and run a menu app or
            something like it.
         2. I considered something like c2n232 with a USB interface, but
            that starts getting into more money, and I think someone
            else is running with that project

For an option #1 implementation, it looks like an ATTINY2313 is $1.25 + 
512kB of FLASH for $.72 + .53 3V3 regulator and a couple of pennies for 
resistors and caps = $3.00 in parts.

I don't know if there is any utility in it (If only the idea for a small 
wedge is worthwhile, I could probably hardcode a small BASIC wedge and 
the cassette routines into the 2K of flash on the 2313 and skip the 
regulator and such, bringing the cost down to $1.50 or so.

Any thoughts?  I think I need to create the PCB anyway, and I hate to 
waste the space, as the board shop charges by the area, not the design.


Jim Brain, Brain Innovations                                      (X) 
Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times! 

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