10 inch driver question - organ pull

[sloober]

Have a 10 inch full range driver from an organ. Should make a decent guitar speaker. It is marked P680 137 609 on the alnico magnet. On the cone back is marked 1016-G1

I understand 137 denotes CTS as the maker. What else can I glean from these numbers? Also I was told an organ driver is closer to a guitar driver, true? If so this thing is pristine. Cone looks a day old.

 

[cubby01]

Well the other thing you can glean from EIA code is the date of manufacture. If it's 137609 (CCCYWW, where CCC=company, Y=last digit of year, WW=week of year), then its CTS built week 09 of year ending 6. So you've got to use some intuition on the decade. Most likely March, 1966. P680 is likley a part number I think.

Bet you're right on sounding good in a git-amp. Best way to know is to try it and find out. Do you know how many watts for the organ. Was the organ tube? (clue to speaker date as well). You are probably safe with a 10-18watt tube amp or lower.

 

[sloober]

Did a little more reading. One place says 3 digits were in the 40's and 50's, 4 digits in 1960 on. So from this I suspect it is 1956. Was told it was a 50's Conn organ. And yes, tubes. I have another speaker from a Motorola console. 918 150. Looks like an oaktron 50th week of 1951?

 

[GordonW]

Actually, there were still 3-digit EIA dates into the 1960s. Many manufacturers went to 4-digit by 1965, and pretty much everyone had converted to 4-digit by 1970.

Was the Motorola mono or stereo? Stereo consoles didn't exist until around 1955 or so, as far as stuff sold at retail. So, if stereo, it'd probably be 1961. If mono, it probably is 1951.

Regards,
Gordon.

 

[sloober]

Me thinks the console was mono. Only got the one driver. Hard to remember with all the crap I find.

 

[The SGD]

1016 - could be a whiteley stentorian and worth $$$$

does it look like the speaker below?

 

[sloober]

nope not like that. Your basic Alnico driver in good shape with no rust.