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(!!!) (BEST BUGLE BOY PAIR) EF86 Amperex Bugle Boy Holland NOS, Belgium plant 1963 (4.0ma and 3.5ma) (same Gm) For Sale Original price was: $199.99.Current price is: $80.00.
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(!!!) (Best Balloon 50) 450=50 Sparton Balloon tests like new 1930 era (61.5ma) (High mA and Gm) (rare 50) Cheap

Original price was: $349.99.Current price is: $140.00.

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SKU: US-4178305988 Categories: ,
Description

Description

(!!!) (Best Balloon 50) 450=50 Sparton Balloon tests like new 1930 era (61.5ma) (High mA and Gm) (rare 50)

450=50 Sparton Balloon tests like new 1930 era in white box – rattle inside base – dried glue particles from age – base is tight to glass

61.5mA

Gm=2480

 

Tested on Amplitrex

Vplate=440V

Vgrid=-66V

Good NOS mA range = 55-60ma

Good NOS Gm = 2100

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We accept returns on non-sale items that are in original packaging, unused, and unwashed within 30 days of receipt. Please follow our returns/exchanges process below. If items do not meet our requirements for return, they will be shipped back to you in lieu of a refund. Shipping and handling charges are non-refundable (exceptions may apply).

Returns & Exchanges Process: If item(s) fit within our returns guidelines found in the Returns. Please allow 7-10 business days for the credit to appear on your account after your return is processed.