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Altec 661B
An Altec brand microphone produced circa 1958.
Altec 660B
This is an Altec microphone.
Altec 21D/150A Type M20;Altec 29B/175A Type M30;Altec 29B/195A Type M49;Altec 28A/195A Type M52
Four Altec microphones on one stand; model numbers correspond with image left to right.
Alluvial Graph of Philosophy Classifications
Made with RAW Graphs https://app.rawgraphs.io
Alcatraz Proclamation
Displayed proclamation on the island