analog - In earlier tape recorders, how was tape spool angular velocity adjusted? - Electrical Engineering Stack Exchange

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Information reel-to-reel recorder - Tapehead

Why does a cassette tape have one spool of tape thst spins faster? Wouldn't that cause strain on the tape? - Quora

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history - Using audio tape recorders on non-personal computers? - Retrocomputing Stack Exchange

Reel to Reel Tape Recorder Manufacturers - TEAC Tascam corporation • Tascam - Museum of Magnetic Sound Recording

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operational amplifier - integrator outputing velocity - Electrical Engineering Stack Exchange

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