McAdam 2000a Digital Audio Analyzer System

[James-B]

Hey all,

I recently (yesterday) came into possession of a semi-functional McAdam 2000a Audio Analyzer.  It has several modules, including a scope, variac, voltage and power meter, distortion analyzer, and a function generator.

Currently, it only functions as a variac with a digital readout.  I'm going to clean it up, and see how much of it (if any) can be repaired.

The reason I am here is because manuals and general knowledge regarding McAdam analyzers are few and far between, and wanted to know if anyone around here has seen or restored one before.  Any info or insights would be much appreciated!

Thanks guys

-Jim

This is what it looks like currently:

[Henrik_Volkers]

Nice boat anchor 😄

Have fun!

[James-B]

Turns out the oscilloscope was just unplugged internally.  It's way out of spec, but does still reproduce a signal input!

Progress!

[JÞB]

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@James-B wrote:

Hey all,

I recently (yesterday) came into possession of a semi-functional McAdam 2000a Audio Analyzer.  It has several modules, including a scope, variac, voltage and power meter, distortion analyzer, and a function generator.

Currently, it only functions as a variac with a digital readout.  I'm going to clean it up, and see how much of it (if any) can be repaired.

The reason I am here is because manuals and general knowledge regarding McAdam analyzers are few and far between, and wanted to know if anyone around here has seen or restored one before.  Any info or insights would be much appreciated!

Thanks guys

-Jim

This is what it looks like currently:

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WOW!

I can suggest a method to test <Oh us old navy guys>

• From a distance approximately equal to your ship's Feeboard:
• Position UUT over Starboard or Port rail
• Drop UUT
• Record Bouyancy Characteristics______________________
• End Float Test

[JÞB]

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@JÞB wrote:

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WOW!

I can suggest a method to test <Oh us old navy guys>

• From a distance approximately equal to your ship's Feeboard:
• Position UUT over Starboard or Port rail
• Drop UUT
• Record Bouyancy Characteristics______________________
• End Float Test

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Just to "Bring it into port" for all you all Naval gurus-

I actually wrote that test on a "Gold" MRC as a ET3 onboard the USS San Berardino (LST 1189)   The Maintainence Requirement Card was used to document the removal of pieces-parts  left over after I and another Electronics Technician subjected a shipboard set of "KWR-37's" to "Destruction" using a fire-axe and a sledge-hammer.  For interested parties- the San Berdoo was somewhere over the Mariana Trench when compliance with the MRC was recorded.  

Results were: "Did not float"

[LV_Pro]

Maybe the "David Letterman" show found out about your work, I haven't seen their "Will it float?" skit, with the "Grinder Girl", in a while!

[James-B]

Call it a hunch, but I'm going to say that it won't float...

It probably won't blend, though, either.  

Also, I see that there's absolutely no love for "benchtop" instruments in the LabVIEW forums!  😛

[JÞB]

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@James-B wrote:

Call it a hunch, but I'm going to say that it won't float...

It probably won't blend, though, either.  

Also, I see that there's absolutely no love for "benchtop" instruments in the LabVIEW forums!  😛

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We LOVE benchtop instruments!  We just hate it that "Bench-fodder" technicians can make mistakes that a program canoot repeat !.

[Henrik_Volkers]

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@James-B wrote:
...

Also, I see that there's absolutely no love for "benchtop" instruments in the LabVIEW forums!  😛

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James-B,

wrong about that!   At the bench I prefer knobs! No need for menues!

And even more if they glove. Tube rulez 😄

[crossrulz]

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James-B wrote:Also, I see that there's absolutely no love for "benchtop" instruments in the LabVIEW forums!  😛

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That's because NI makes all of our instruments modular.

Seriously, there are certain instruments I have to have as a "benchtop".  Oscilloscope is the main one.  I know NI has their digitzing cards, but they are a pain to perform debugging with.  That's why I have a tektronix scope sitting in all of my test racks.  Nothing like a full instrument with knobs and buttons to play with when the pressure is on.