EMI RD4/4 reel to reel tape recorder BBC mod from the EMI BTR-2
The RD4/4 machine is an in-house design from the BBC, the recorder was a BTR-2 before all the mono valve electronics were removed and replaced with transistor electronics and addittional tape tension and reel size selection controls added.

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Super rare EMI Hayes only reel to reel - BTR2/3 tape recorder

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Tektronix: The Cathode Ray Tube - Window to Electronics

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Demonstration of Sony APR-5003 working

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What Was I Thinking.. I BOUGHT A 16 TRACK STUDIO REEL TO REEL.

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EMI BTR-2 reel to reel tape recorder restoration projects

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Studer A812 reel to reel tape recorder

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SONY APR-5000 APR-5003 reel to reel tape recorder

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Unbelievable Smart Worker & Hilarious Fails | Construction Compilation #8 #adamrose #smartworkers

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EMI TR-90 portable reel to reel tape recorder

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Bandschnitt Musik auf Telefunken M15A

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Studer A80 vinyl cutting lathe version - double playback heads with variable tape delay path

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I Found a Beatles Master Tape of Let It Be

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EMI BTR-2 reel to reel

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The Forgotten RCA Factory: Inside the Camden Plant That Once Spoke to America

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100+ reel to reel tape recorders

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Editing Analog Tape

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Vortexion CBL5 reel to reel tape recorder

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1947 Brush BK 401 Reel-to-Reel Tape Recorder

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Studer C37 valve tape machine

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