Re: Serial Number Question
#6393360 - 02/23/14 11:07 PM
Serial numbers from about 4000 to about 7500 were made in the 1970s. So serial number 6-6403 was made in 1976. The way they put the numbers on the base might make the 6 look like an 8 or the 8 look like a 6.
Serial numbers from about 7500 to about 9700 were made in the 1980s. So serial number 1-8126 was made in 1981.
The easy way to confirm all this is to just call Questar and talk to them. They will be glad to give you the exact birth date and add your name to the owners list for that serial number.
Duplex and Standard Qs are in the same serial number base (all Q3.5s).