Manufacturer and factory: Philips Heerlen
Code: 7L4 ⊿9A-⊿8J
Year of production: 1958-9
Structure's features: D getter, gold pin
Conditions: NIB new in box
Rating : 1
Original package : yes
Rare early production. Philips factory
Perfect Matching: Ia and Mu between 3% !
PRICE FOR PAIR
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