THE SOCKETS ARE SHOWN FOR DISPLAY PURPOSES ONLY AND ARE NOT FOR SALE HERE. THESE TUBES TESTED AT 100% STRONG READINGS ON MY B&K 747 AND HICKOK TV-7 TUBE TESTERS. TESTED FOR GAS AND SHORTS.
RED PRINT ON THE BLACK BASE OF THE VALVES IS WORN IN PLACES. THESE TUBES TESTED AT 100% STRONG READINGS ON MY B&K 747 + HICKOK TV-7 TUBE TESTERS. LONG DARK GREY ANODE PLATES. TESTED FOR GAS AND SHORTS.
This looks like an MCM STEREONETTA ISOPHON but I cannot be certain.
There is a windup key, a brake, and horn. I have just one broken record but I believe it plays at 78 rpm.