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(BEST PRICE) AZ31 NOS (4 tubes for $99.99)

$ 99.99

4 tubes for $99.99

AZ31 NOS original boxes


4 tubes) AZ31 Pope England 1959
3 tubes) AZ31 Philips Miniwatt England NOS 1950's
1 tube) AZ31 Mullard NOS original box 1963

 

(octal base; 4V @ 1.1A filament)

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