Two Mark 3 100 Heads With The Same Serial Number

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Two Mark 3 100 Heads With The Same Serial Number

Postby sound city 69 on Fri Apr 08, 2016 12:18 am

This L100 that was recently removed from E-bay has the same serial number as my P.A. 100.

http://www.ebay.co.uk/itm/Sound-City-Ma ... 7675.l2557

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I'm sharing in hopes to bring more light to the serial numbering system that Dallas Arbiter used. We (Sound City fans) still need to set up a site to list all known serial numbers
along with the gear description.
I'd do it but I don't have those skills.
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Re: Two Mark 3 100 Heads With The Same Serial Number

Postby Papa Dog on Fri Apr 08, 2016 3:22 am

now that I have some of my health issues dealt with I anticipate making some changes to the Sound City Site in the next month.
One of the things I am working on is a registry page, in a "wiki" format where users will be able to post their own information.
I also anticipate adding a "blog" feature, along with a means of directly adding pictures and such, and a seperate page for user mods.
are you certain that the numbers are actually serial numbers and not model numbers? Sound City used a lot of tags which really do not seem to be "appropriate" for the item being tagged, and those "M" numbers look more like circuit designations that serial numbers. I reckon that in time we may find out.
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Re: Two Mark 3 100 Heads With The Same Serial Number

Postby sound city 69 on Fri Apr 08, 2016 3:40 am

Good to hear that your health has improved. Well we'll see how many more show up with that serial? number.
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Re: Two Mark 3 100 Heads With The Same Serial Number

Postby Unit_1 on Fri Apr 08, 2016 6:40 pm

Papa Dog wrote:now that I have some of my health issues dealt with

:cheers:

I'm just getting over food poisoning. Twice. Never shopping at Smart and Final again, they got something going wrong in their receiving process.... Which reminds me, now that I'M feeling better, time to write a nasty-gram to their web page to let them know their receiving is AFU
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Re: Two Mark 3 100 Heads With The Same Serial Number

Postby selmer_rule on Mon Apr 11, 2016 12:49 pm

I suspect the "M.3" bit of the serial stands for "Mark3" and the rest is only a sequence number. Perhaps both 'PA' and 'lead' production lines stamped their own sequence numbers.
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Re: Two Mark 3 100 Heads With The Same Serial Number

Postby Papa Dog on Mon Apr 11, 2016 10:46 pm

what leads me to believe that this is a model number and not a serial.
This collection of schematics contains one with the designation L/B 100W M3234.
So I concluded that the M3234 is the model of this Mark 3 series amp.

also THIS schematic has an annotation "deleted at 155B". I am reckoning that the actual designation would be M4155B.
Of course this is all idle speculation on my part.
Last edited by Papa Dog on Wed Apr 13, 2016 8:14 pm, edited 1 time in total.
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Re: Two Mark 3 100 Heads With The Same Serial Number

Postby Alnico on Tue Apr 12, 2016 10:45 am

selmer_rule wrote:I suspect the "M.3" bit of the serial stands for "Mark3" and the rest is only a sequence number. Perhaps both 'PA' and 'lead' production lines stamped their own sequence numbers.


Could be. I've seen one without the M, but still a four digit number beginning with 3. They are definitely model numbers in the model number box, and serial numbers in the serial number box, at any rate.
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Re: Two Mark 3 100 Heads With The Same Serial Number

Postby sound city 69 on Wed Apr 13, 2016 6:57 am

Here are my other Mark 3 100 chassis serial numbers.

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Note that neither has an M and the L100 starts with a 4. I don't think that I have ever seen a Mark 3 with a serial number that started with 2.
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Re: Two Mark 3 100 Heads With The Same Serial Number

Postby E-Rock on Wed Apr 13, 2016 6:10 pm

Just to add to the discussion, here's mine:

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Re: Two Mark 3 100 Heads With The Same Serial Number

Postby Pacafeliz on Mon Apr 18, 2016 8:16 pm

here's my B100

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