Tarbell 1011D

The Tarbell 1011D is not a Vector Graphic product. This is my project page that documents how to interface the Tarbell 1011D to a Vector Graphic System.
 
 

  
Tarbell 1011D Front
R1-R11 resistors replaced with 221/331 ohm resistor pack 
 
 

 
Tarbell 1011D Back
 R1-R11 resistors replaced with 221/331 ohm resistor pack 

 

 
Original Tarbell 1011D R1-R11 Resistors
 

 
Tarbell 1011D Connector Area Wiring for use with Pertec FD 514
 
E48 connects to E46 XRDY for Altair or E47 PRDY for IMSAI.
Jumpers for Pertec FD 514 match the Shugart SA800/801 configuration except E23 is not connected to J1-18 Head-load  

 
Notes:
 
SW-1-1 Address Bit 7, Off=1
SW 1-2 Address Bit 6, Off=1
SW 1-3 Address Bit 5, Off=1
SW 1-4 Address Bit 4, Off=1
SW 1-5 Address Bit 3, Off=1
SW 1-6 Write-Protect. On=Protected
SW 1-7 82S123 Bootstrap Prom , On=enable
SW 1-8 Unused
 
Normal running set-up is all switches off except #7. Set SW 1-7 off for bootstrap in another ROM.

The Tarbell bootstrap ROM conflicts with the MITS Turnkey Monitor. Another bootstrap prom is required.
 
Tarbell IO port=F8
 
 
Tarbell 1011D Jumpers for Shugart SA800/SA801
 
Shugart SA800/SA801 Configuration for Tarbell 1011D
  
Shugart SA800/SA801 Picture
  
Shugart SA800/SA801 Interface Connectors
 
Dual Stor page
          


DataTrac 8 Drive DC

P5-1 +24V
P5-2 +24 Return
P5-3  Return
P5-5 +5V
P5-6 +5V Return
   

Shugart SA801 Drive DC

P5-1 +24V
P5-2 +24 Return
P5-3 -5V Return
P5-4 - -5V
P5-5 +5V
P5-6 +5V Return

Pertec FD-514

1 GND (power supply 4)2 KEY
3 +5V (Disk Buffer) (power supply 6)
4 +5V (Disk Electronics) (power supply 5)
5 +5V RET (Disk Drive) (power supply 7)
6 -12V (power supply 1)
7 -12V RET (power supply 2)
8 +24C (power supply 9)

Parts needed for this project     

LM323K for Dual-Stor power regulator
Shugart P5 connector: AMP P/N 1-480270-0  and AMP pins P/N 6019-1
Shugart P4 connector: AMP P/N 1-480303-0 or 1-480304-0

 

   
Tarbell CP/M 1.4 Label 

 

 
Related Links

Altair Tarbell BIOS, BOOT, and Utilities

         
MODELS FD400, FD5X0, FD5X1 Flexible Disk Drives

http://www.classiccmp.org/cini/pdf/iCOM/FD400-5x0-5x1_Mar77.pdf

   

Tarbell Controller Manual

http://www.hartetechnologies.com/manuals/Tarbell/

   

Looking for 8" floppies with CP/M 2.2 for Altair with Tarbell controller

http://www.vintage-computer.com/vcforum/showthread.php?t=12916 

   

Looking for Tarbell CP/M Boot Disks (altaircomputerclub message 1413)

http://groups.yahoo.com/group/altaircomputerclub/message/1413 

   

Tarbell is making me insane. From Grant Stokly

Classic Computing Mailing List Archive

http://archive.netbsd.se/?ml=cctech&a=2007-11&m=5623418

   

Dave Dunfield's Image Disk Utility

http://www.classiccmp.org/dunfield/img/

   

FDADAP floppy disk adapter

http://www/dbit.com/dadap.html

   

"The D bit FDADAP board is a small adapter which adapts 8" floppy disk drives (Shugart SA800 style bus) to work with the PC 3.5"/5.25" floppy disk cable pinout" 

   

APE - To mimic: The Altair Peripheral Emulator

http://frankbarberis.tech.officelive.com/default.aspx

   

"The Altair Peripheral Emulator is a program that allows a Windows PC to emulate up to four floppy disk drives for an Altair 8800 series computer"