![The Wollensak brand was used by the 3M corporation for a series of educational cassette recorders and high-speed cassette duplicators between 1973 and 1983. Wollensak 3M Tape Recorders designed for classroom use The Wollensak brand was used by the 3M corporation for a series of educational cassette recorders and high-speed cassette duplicators between 1973 and 1983. Wollensak 3M Tape Recorders designed for classroom use](https://preview.redd.it/the-wollensak-brand-was-used-by-the-3m-corporation-for-a-v0-x5qhe3rwi8la1.jpg?width=640&crop=smart&auto=webp&s=e930ed2b3aa904e1eb99edf99a31be56abe78cc4)
The Wollensak brand was used by the 3M corporation for a series of educational cassette recorders and high-speed cassette duplicators between 1973 and 1983. Wollensak 3M Tape Recorders designed for classroom use
![Vintage Wollensak 3M Model 2570 AV Cassette Recorder System - electronics - by owner - sale - craigslist Vintage Wollensak 3M Model 2570 AV Cassette Recorder System - electronics - by owner - sale - craigslist](https://images.craigslist.org/00b0b_6LsrvFpS2ke_0jm0dO_600x450.jpg)
Vintage Wollensak 3M Model 2570 AV Cassette Recorder System - electronics - by owner - sale - craigslist
![Vintage Wollensak 3M Model 2570 AV Cassette Recorder System - electronics - by owner - sale - craigslist Vintage Wollensak 3M Model 2570 AV Cassette Recorder System - electronics - by owner - sale - craigslist](https://images.craigslist.org/00i0i_dBd0yTM3Gh9_0hw0ew_600x450.jpg)