Specifications for Denon DEC-61A4

Manufacturer:		Denon (Nippon Columbia Co. Ltd.)
Model Number:		DEC-61A4
Serial Number:		V112179
Date of Introduction:	September, 1968
Date of Manufacture:	Late 1969
Manufactured In:	Tokyo, Japan
Original Price:		$995
Weight:			13 Pounds
Size:			11 1/4" Wide, 15 1/2" Deep, 3 1/2" High
Power Requirement:	110 VAC
Display Technology:	Nixie Tube
Logic Technology:	Small Scale Integrated Circuits
			Mitsubishi M53xx series plastic package DIP Integrated Circuits
Digits of Capacity:	14
Decimal Modes:		Floating or Fixed at 0, 2, 3, or 6 digits
Arithmetic Logic:	Arithmetic
Math Functions:		Four Function with Square Root
Constant:		Keyboard activated, Multiply and Divide only
Memories:		1 with add/subtract and sum-of-products
Performance:		Addition/Subtraction:	 	 10 milliseconds
			Multiplication/Division:	250 milliseconds
			Square Root:			500 milliseconds

Previous Machine: Toshiba BC-1211S Next Machine: Monroe 950 Related Machine: Denon DEC-311
Notes: Same electronics without square root key on keyboard marketed as the Denon DEC-621
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