Granite City 2 ==> ithaca amplifier

This is a military surplus Ithaca 1201 low noise preamplifier. I have tested it, it works. Testing was performed as follows: the signal generator output is split in two: one goes straight into input B of oscilloscope, another goes into the preamp. The preamp 's output is then fed into the scope's channel A. As you can see, the amplitude of A is bigger, to the extent determined by the GAIN switch. Since I only performed limited testing, I am sure that there are some functions of this unit that I did not test. But it looks good.

Please take a look at the specs for more info on how this unit can be remotely controlled, why it is so good, etc etc. Click here for the spec sheet (JPEG) . Click here for the manual and spec sheet (PDF).

This is an excellent and expensive piece of equipment.

:SATISFACTION:
(Click on the thumbnail images to enlarge)

Adobe PDF Document Document: 1201.pdf