Texas Instruments Home Computer 99/4A

For more information, see this article's corresponding Wikipedia page: TI-99/4A.

This device is in the WorkNeeded:OriginalParts category because it was flagged as missing information on the original parts. It may have replacement parts listed but those cannot be assumed to be identical to the originals. If you have a list of the original parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables

This device is in the WorkNeeded:General category because it was flagged as missing general information about the device. The information may be incomplete, using default text, or inaccurate and should be verified with external sources if possible. If you can add or correct information on this page, please feel free to edit it and do so.

TI-99/4A

Preliminary Information
Release Year	1979
Leak Risk	Not Sure
Batteries	None
Mounting Technology	Through Hole, Sockets
Capacitor Types	Aluminum Electrolytic
Destructive Entry	No

Known Issues

Symptom or Problem Encountered

Causes

• Description of cause

Solutions

• Solution to the problem

Disassembly Notes

Warnings or tips to disassemble the device

Original Parts

Power Supply

4A/PS

NO

1049689-2

Capacitor Specifications and Footprint Information

RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand	Series
C7	1	0 µF		THT	6mm	12mm	Axial	85 °C	Electrolytic	Nichicon	SE(M)
C8	1	1000 µF	25 v	THT	13mm	26mm	Axial	85 °C	Electrolytic	Nichicon	SE(M)
C9	1			THT	22mm	39mm	Axial	85 °C	Electrolytic		(M)
C10	1	47 µF	16 v	THT			Axial		Electrolytic	Nichicon

Basic PCB Name

Note model numbers and board revisions here

Capacitor Specifications and Footprint Information

RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand	Series
		0 µF						0 °C

Replacement Parts

Basic PCB Name

Capacitors

RefDes	Qty	Compatible Part Number	Order Links
			Digikey

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

Kits

• Digikey BOM: https://www.digikey.com/

Related Links

• Videos or other things that might be helpful to check out