Jump to content

Photo

TI-74 and cassette capabilities


26 replies to this topic

#26 acadiel OFFLINE  

acadiel

    Stargunner

  • Topic Starter
  • 1,407 posts
  • www.hexbus.com
  • Location:USA

Posted Wed Feb 7, 2018 3:13 PM

13cf85cc61d5fabce790b48fee6f9b44.jpg

3287825be1c4c62288e5fcce1563e490.jpg

Inside the cartridge.  Note, it's 256K total.  The address space for this unit was only 32K for the cart port.  There has to be some banking scheme going on here to support all 256K.  Also, note a power connector is on the board.

 

Note, the last vendor to sell accessories, High-Tech Solutions, dropped their website a long time ago.  Here's a historical list of what they sold as far as accessories:  http://web.archive.o...Accessories.htm



#27 acadiel OFFLINE  

acadiel

    Stargunner

  • Topic Starter
  • 1,407 posts
  • www.hexbus.com
  • Location:USA

Posted Thu Feb 15, 2018 5:28 PM

48d0b97afddc7b4acb0db2e254867a4c.jpg

4ab47a318affe84a190c4f1ea204e9ba.jpg

167df54e4d607eea661784c883e60151.jpg

46 components on this CI-7 cassette cable:

17 resistors
14 capacitors
4 inductors (blue)
5 transistors
4 diodes
1 CA358E RCA601 8 pin IC
1 74HC367E logic chip

Plus the cable, 10 pin connector, etc.

I’m willing to help board this out! Ksarul or Brain, have any time? :-)




0 user(s) are browsing this forum

0 members, 0 guests, 0 anonymous users