[Test-Equipment] Mega-mode Sr.?

[Carl]

Thats your old standard noise figure meter and source used for receiver 
measurements. Likely using a Sylvania 5722 noise diode. This is 60's 
technology.

They can be exceptionally accurate up to around 6M but the circuit 
compensation makes them useable for relative measurements only above 
that.Still very useful if you cant afford a HP 8970.

Good for BA receivers and even SS if checking mods performance. Also nice 
for cutting coax to exact lengths for stubs or phasing lines.

Carl
KM1H



----- Original Message ----- 
From: "rbethman" <rbethman at comcast.net>
To: "Discussion of Electronic Test Equipment" 
<test-equipment at mailman.qth.net>
Sent: Friday, November 05, 2010 9:50 AM
Subject: Re: [Test-Equipment] Mega-mode Sr.?


> Mike,
>
> This was very likely used for antenna impedance measurements.
>
> Palomar had a MUCH smaller noise generator for antenna impedance
> measurements.
>
> Bob - N0DGN
>
> On 11/5/2010 9:13 AM, Mike Sloane wrote:
>> I rescued this from the dumpster - the woman told me that it was in her
>> grandmother's house when they were cleaning it out. I have no idea what
>> it is, aside from being a "noise generator". As noted in the image
>> referenced below, it was made by Kay Electronics in Pine Brook NJ (not
>> far from Boonton NJ, home of Boonton Electronics and Aircraft Radio,
>> etc.). I am not likely to even turn it on, as I don't know the condition
>> of the internals. BAMA came up empty, and I certainly am not going to
>> pay $25 for a manual for a boat anchor like this unless it is useful for
>> something.
>>
>> <http://public.fotki.com/mikesloane/old-electronics-and/kay-electric-mega.html>
>>
>> Any (constructive) comments would be appreciated,
>>
>> Mike
>
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