Date   : Fri, 06 Nov 2009 18:19:12 -0000
From   : jumbos.bazzar@... (Mark Haysman)
Subject: eBay auction prices

> He says the number on the "main board" is 8346. There's no
> label or anything on either side of the motherboard, 'cept some text
> saying who made it and its an issue 3 board.

> I do have a suspiciusly similar number though. 8322.
> Haha! It's the batch number of the Astec UM1233 UHF modulator!!!

It's actually the date code. 8322 is the 22nd week of 1983. You'll see a 
similar code on most chips on the board too.

Mark.