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Odd serial number on my 4001
Posted: Wed Jun 20, 2012 3:45 am
by earlmobile
hi !
i was trying to find out when my 4001 was bulit but the serial seems to bit odd to me. can any of you guys help me with it?
Its a 4001 Jetglo - Serial is "558"
Re: Odd serial number on my 4001
Posted: Wed Jun 20, 2012 4:41 am
by antonius
Hi Daniel,
The serial number also includes the two letters that are above the Rick-O-Sound input. The first letter is a code for the year and the second letter is the month. If you go to the Rickenbacker website (
http://www.rickenbacker.com/service_serials.asp) you can input the serial number and it will confirm when your bass was made. For example mine has OE 2652 which is May 1975.
Re: Odd serial number on my 4001
Posted: Wed Jun 20, 2012 4:44 am
by heinpete
Hi Daniel,
welcome in the RRF!
The letters above the jackets are more compelling than the numbers below. The letters will tell you date (month and year) if you use the rickenbacker decoder.
http://www.rickenbacker.com/service_serials.asp 
Re: Odd serial number on my 4001
Posted: Wed Jun 20, 2012 4:45 am
by heinpete
... while I was typing and 3 min late!
...looks like yours is January/
something...
Re: Odd serial number on my 4001
Posted: Wed Jun 20, 2012 5:38 am
by Seans
I'm guessing Jan 1975.
Re: Odd serial number on my 4001
Posted: Wed Jun 20, 2012 12:56 pm
by marc61
Welcome Daniel...and we'd love to see more pics of your bass
Re: Odd serial number on my 4001
Posted: Wed Jun 20, 2012 1:57 pm
by Ontario_RIC_fan
Seans wrote:I'm guessing Jan 1975.
Which would be OA 558
Could also be QA 558 from Jan 1977
Re: Odd serial number on my 4001
Posted: Wed Jun 20, 2012 5:56 pm
by jps
Looks like it could also be DA. Not likely, though.
Re: Odd serial number on my 4001
Posted: Wed Jun 20, 2012 6:21 pm
by Ontario_RIC_fan
It could also be UA, making i from January 81