"Standard Type 1"

"Standard Type 1"

Display is 8 digits, red LED.

Four function, %, memory.

Integrated circuit - Texas Instruments TMC0972 or TMS0972.

9v (PP3 battery).

69 x 133 x 24 mm (2.75" x 5.25" x 0.95").

Made in Hong Kong.

Popular, low-cost calculator, sold and given away under many names.

		King Sonic

	By the mid 1970s the components for calculators were mass-produced and very cheap. This model was one of the cheapest and was sold under many names and was even given away as an advertising item.


	Showing the electronics of this type of calculator. By now there is a just a cheap keyboard, the Texas Instruments TMS0972NL integrated circuit (here date coded to early 1978) and the 8-digit LED display array.