Tandy Model 4 (GA)/4P/4D 128K memory upgrade RAM chips

Tandy Model 4 (GA)/4P/4D 128K memory upgrade RAM chips

This is a set of eight 128 cycle/2mS 64K RAM chips for Tandy Model 4 computers that [b]don't[/b] require the…

Quantity
17
Tandy Model 4 (NGA) 128K memory upgrade kit

Tandy Model 4 (NGA) 128K memory upgrade kit

This kit contains the chip to replace the dip shut at location U72 (Model 4 NGA) plus eight 64K x…

Quantity
17
Tandy Model 4 (NGA) 128K memory upgrade chip

Tandy Model 4 (NGA) 128K memory upgrade chip

This chip replaces the dip shut at location U72 (Model 4 NGA) to allow for adding another 64K of memory…

Quantity
17
Model 3 40w power supply (Astec AA11320)

Model 3 40w power supply (Astec AA11320)

Fully load tested for all voltages - all within specs.
Shown running a Model 4 system in a Model 3…

Quantity
3
Model 4 internal drive stack

Model 4 internal drive stack

Metal housing that holds up to two internal floppy drives.
Screw holes for drives (4 per drive).
Posts on CRT side…

Quantity
1
Model 3/4 (NGA) RS-232 Board

Model 3/4 (NGA) RS-232 Board

RS-232 communication/serial printer board for Model 3 and NGA Model 4 computers.

Tested with loopback connector at all rated speeds using…

Quantity
3
Model 3/4 FDC controller PLL

Model 3/4 FDC controller PLL

Late Model 3/early Model 4 Floppy Driver controller utilizing their Phase-Lock Loop technology to drive up to 2 internal and…

Quantity
2
Model 4 64K NGA Motherboard

Model 4 64K NGA Motherboard

Processor: Z80A
Processor Speed: 4MHz (2MHz in Model 3 mode)
Max. Onboard DRAM: 128KB
Onboard DRAM: 64KB…

Quantity
1
Model 4 128K NGA Motherboard

Model 4 128K NGA Motherboard

Processor: Z80A
Processor Speed: 4MHz (2MHz in Model 3 mode)
Max. Onboard DRAM: 128KB
Onboard DRAM: 128KB
Cache: None…

Quantity
1
Apple II+ Plus Computer

Apple II+ Plus Computer


Condition: Excellent (some small case scratches)

Processor Type: 6502
Memory: 64K
ROMs: All Applesoft
U.S.A. manufactured model
Fully tested with Apple II+ Dealer…

Quantity
1
64K 80 column IIe card - Apple

64K 80 column IIe card - Apple

The Extended 80 Column card provides 80 display columns and adds 64K more ram for a total of 128K

.…

Quantity
5
64K 80 column IIe card - Apple

64K 80 column IIe card - Apple

The Extended 80 Column card provides 80 display columns and adds 64K more ram for a total of 128K

.…

Quantity
5
Disk II floppy controller - 3rd Party

Disk II floppy controller - 3rd Party

Unbranded interface card to use the Apple Disk II system on the Apple II, IIe and II+ computer. An exact duplicate…

Quantity
2
Disk II floppy controller - Apple

Disk II floppy controller - Apple

Apple-branded interface card to use the Apple Disk II system on the Apple II, IIe and II+ computer.…

Quantity
3
IC Inserter/extractor Kit

IC Inserter/extractor Kit

Insert and extract pins with ease using this IC Inserter/Extractor set. Both tools are groundable to prevent static damage.…

Quantity
9
Apple Enhanced IIe Motherboard

Apple Enhanced IIe Motherboard


Condition: Excellent

Processor Type: 65C02
Memory: 64K
ROMs: Upgraded CD, EF and Character Generator
Board type 820-0064-B

Tested using Apple IIe…

Quantity
1
Apple IIe Motherboard

Apple IIe Motherboard


Condition: Excellent

Processor Type: 6502
Memory: 64K
ROMs: All Apple
Board type 820-0064-B

Expertly repaired and tested using Apple IIe Dealer…

Quantity
2
Apple II Plus Motherboard

Apple II Plus Motherboard


Condition: Excellent

Processor Type: 6502
Memory: 48K
ROMs: All Applesoft
Board type 820-0044-C (RFI Rev. 2)

Expertly repaired and tested using Apple-Cillian…

Quantity
1
IBM 5160 XT motherboard - 64K-256K

IBM 5160 XT motherboard - 64K-256K

Processor: 8088
Processor Speed: 4.77MHz
Processor Installed: AMD 8088 (*this may be replaced, at extra cost, with a faster…

Quantity
1
Celeron 333 - SL2WN

Celeron 333 - SL2WN

With heatsink and fan

Quantity
1
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