The Vintage Tandy Micronta Multitester 22-201A 18 Ranges Tested Works Radio Shack is a classic electronics device manufactured by RadioShack in Korea, Republic of. This multitester is designed to test various electronic components and circuits with 18 different ranges, providing users with accurate and reliable results. Tested and confirmed to work, this vintage piece is perfect for collectors or enthusiasts of vintage electronics, offering a glimpse into the past of consumer electronics technology.