Vintage Sylvania Technical Manual Set-Tested Radio Tubes Pocket Reference Tube Data Guide

Original Sylvania Technical Manual published by the Hygrade Sylvania Corporation Radio Tube Division. This compact pocket reference was intended for radio servicemen and technicians and contains valuable tube data, specifications, and technical information for Sylvania set-tested radio tubes.

A desirable piece of early radio history and an excellent addition to collections of vintage electronics, tube radios, vacuum tube manuals, or advertising memorabilia.

Features

• Original Sylvania Technical Manual
• Published by Hygrade Sylvania Corporation
• Pocket-sized service reference
• Contains vacuum tube technical data and servicing information
• Original black paper covers with period graphics
• Great reference for antique radio restoration

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