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Mighty Favog

H.I.P. production years

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I've had my HIP's for a little over a year and am wanting to see if I can get an idea of when they were made. The S/N's are 5419 & 5420.

 

As I've been led to understand there should have been two digits before the S/N's signifying the year. But these only have the last four digits. Also, both inspection/testing labels have come off completely over time (glue dried up).

 

Is there list this can be referenced to?

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On 8/13/2019 at 1:33 PM, Mighty Favog said:

I've had my HIP's for a little over a year and am wanting to see if I can get an idea of when they were made. The S/N's are 5419 & 5420.

 

As I've been led to understand there should have been two digits before the S/N's signifying the year. But these only have the last four digits. Also, both inspection/testing labels have come off completely over time (glue dried up).

 

Is there list this can be referenced to?

You might want to ask put this in Ask The Historian part of the Museum Section.

 

Andy might have some insight as well.

 

I can move it there if you wish.

 

Travis

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1 hour ago, Mighty Favog said:

That would be great, Travis. Thanks!

Consider it done

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@HDBRbuilder Andy or @JRH, do either of you have any general information in this area?

 

Travis

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These were shipped to Blackstone Audio on 4/14/83.  Pro serial numbers (except for some very early "Little Bastards") did not use the letter coding.  Just 4 digits.  

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@Mighty Favog I think you have your answer.  Jim the Curator comes through yet again!

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This sort of confirms my HIPs (SN 4138 & 4139) were likely made in '81, with solder terminal K-55-Vs and K-77-Ms and Type HIE xovers. 

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