Mullard ECC33 Fat Brown Base Valve Tube Welded Plates Square Getter NOS (M417)
Mullard ECC33 Fat Base Yellow Print Valve Tube Welded Plates Square Getter (M417) Code 5K3 B7D 1957 Blackburn Tested Hickok 1-177-B This valve 3800 /3800 super strong gm No gas shorts grid emissions.
Nos Vintage Mullard
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