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101D Western Electric Tennis Ball 1920's test like new (7.8ma and 8.4ma) (sold out)

$ 0.00

Sorry, this product is sold out!

0 matched pair) 101D Western Electric Tennis Ball 1920's test like new in white boxes, test very strong and zero gas

0 tube) 7.8ma Gm=1000

0 tube) 8.4ma Gm=1000

 

(AF Voltage Amplifier)


Vfil=4.5V @ 1A

Vplate= 130V

Vgrid= -9V

NOS Iplate= 7.4ma

NOS Gm=1000

mu=6.2

Rp=5800 ohms

 

Introduced in 1921

See more: vacuum tube
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