Magic eye valve types
I'm building a simple test rig for magic eye valves, as these can't easily be tested on typical valve testers. The common types that I've come across in British vintage radios include Y63, Y65 (classic octal shape, end-on view), EM34 (slim octal, end-on view), EM80, EM81 (B9A upright side-view) and EM84 and EM85 (B9A horizontal bar type). A number of equivalents were made, but they all boil down to the foregoing basic types.
Does anyone know of any other types used?
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Phil
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