Line Amplifier

[cryptomecanic]

How is a line amplifier

used I found two

of these at the

city dump last

week

one was marked

with the co sherriff's

freq

and the other one

the HP

GE LINE AMPLIFIER

MODEL LA11

SERIAL NO 2461493

[cryptomecanic]

What I would like to know

is do they amplify

The radio signal or

the sound like a guitar

Amp

Thank's