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> New in box 6AM5 / EL91 tubes / valves - eddystone - 7D9
New in box 6AM5 / EL91 tubes / valves - eddystone - 7D9
New in original box National 6AM5/EL91 audio output tube
Eddystone used two 6AM5/EL91 tubes/valves as the audio outputs in the 940, 880/2, 770 receivers and one in the 730/4 receiver.
The 6AM5 is listed as a excellent substitute (1970 Tube Substitution Guidebook by H. A. Middleton) for the 7D9 tube which Eddystone used as the audio output in the 680X and 680/2 receivers.
These new old stock National 6AM5/EL91 tubes are tested good in our B&K 707 tube tester and are inventory clearance of NOS tubes.
