1953 MELZ 6H8C 6N8S 6SN7 Metal Base Vacuum Tube USSR VIII-53

Close-up photographs of the plates, mica supports, factory markings and pins are included. Glass is intact with no cracks observed. Factory printing is strong and legible. Original handwritten identification and test notes shown on tubes, boxes, or storage bags are from the late William “Billy” Odell’s personal collection and records.

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