200-series scopes
The Tektronix 200-Series were miniature portable scopes, most of which included internal rechargeable batteries.
See also the article on the 200 series history and the 200-series brochure (1982) at vintagetek.org.
"Classic" miniature 200 series
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211 − 500 kHz miniature single channel (1971 − 1976)
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212 − 500 kHz miniature dual channel (1974 − 1991)
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213 − miniature 1 MHz scope + TRMS digital multimeter (1975 − 1988)
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214 − 500 kHz miniature dual channel storage (1974 − 1991)
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221 − 5 MHz miniature single-channel (1975 − 1991)
Other 2xx instruments
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208 − ECG monitor (? − ?)
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222 − 10 MHz dual-channel digital (1990 − ?)
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224 − 60 MHz 2-ch compact (1993 − ?)