Entries by Bob Puff

Ten "70 V System" Myths

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“70 V Systems” Needn’t Be Confusing

Of all the topics covered in SynAudCon courses, few are as misunderstood as “70 V” systems. Most people are surprised to find that these systems share many common traits as “direct” connected systems. The … Read more

War Tuba

A brief explanation of a War Tuba.

First impression this photo of a War Tuba looks like a loudspeaker. It is actually a mic.

Acoustic location devices were used by military services from mid-World War I to the early years … Read more