I meant, if an Altec 817 cab is made to house 515b, canthe 515g be swapped? I am asking from a mechanical view point.Originally Posted by GM
The specs for the bolt mounting holes say 14 9/16 - round holes, for 515B.
The mounting hole for G is 15
https://greatplainsaudio.com/wp-cont.../07/515b-1.pdf
https://greatplainsaudio.com/wp-cont...-Series-01.pdf
bonzo, if you build a 817 cabinet for a 515b with a 14 9\16 bolt hole diameter the g will fit. if you build a 817 cabinet to the altec plans the 515b will not fit. they list the bolt hole diameter at 15 inches. and in the 816 at 15 1\8. i never knew this till i looked it up this evening. i have 816 cabinets at work and will verify this tomorrow. which is funny since they give a listed output of a 515b in a 816 cabinet
thanks. I don’t have much understanding of carpentry.
Why does 14 91\16 bolt hole allow 15 to fit, but not vice versa
Interesting! Thanks!
Never noticed it nor can recall anyone that posted and/or PMed me using these drawings for DIYing pointed this out.
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
bonzo, measured the 816 cabinet today. 14 9\16. I don't know why the 1970's enclosure plans had it different. the 515g will work with the 14 9\16.
Of course they can.If you build a cabinet for 817 with 515b woofers, can the woofers be swapped to 515G or vice versa?
Later 515B is built on the same 16 inch frame as 515G.
The 16 inch frames have slots rather than holes for the mounting bolts such that they will work with a range of different bolt circles.
The slots and the bit of forgiveness they offer in getting the bolts started in their respective T-nuts is well appreciated. Those fellas who have loaded 515's into 210 cabinets without help know exactly what i'm talking about.
- - - Updated - - -
After some point in 1975 515B looks like the one in this pic:they list the bolt hole diameter at 15 inches. and in the 816 at 15 1\8. i never knew this till i looked it up this evening. i have 816 cabinets at work and will verify this tomorrow. which is funny since they give a listed output of a 515b in a 816 cabinet
Not all vegetables make good leaders.
FYI/FWWIW, etc., the late Bill Eckle's small, large format driver compilation w/ woofers:
The Wayback Machine - https://web.archive.org/web/20120122...MALL/Altec.htm
The Wayback Machine - https://web.archive.org/web/20090614...ARGE/Altec.htm
edit: BTW, anybody know how to convert these HTML to some other type (jpeg/whatever) to store on our computers?
Last edited by GM; January 28th, 2023 at 09:10 PM.
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
GM,
I just did it.
Right click on the page. Select "Print"
It will bring up your printer. And show a preview.
In the box that says printer, there should be a drop down.
Select "Microsoft Print to PDF"
Hit Print, then tell it what folder or wherever else you might want it to go.
This is assuming Windows 10
When done, assuming it works, you will have to set the print back to your printer, otherwise Print stays in PDF mode.
In the 80's, I contacted a gentleman named Jim Dickenson. I had A7's at the time. He sent me those booklets on the Large and Small VOTT's and how to make them better.
Along with a handwritten letter telling me to not blow up my 802-8G diaphragms because they were no longer available. I was looking for an 806A diaphragm at the time.
i imagine you all remember him. Anyway, I have those on paper. Now I have the pdf.
Ron
Enjoying Altec Speakers since 1972
thanks. I have pair of 515b that looks like this
is this then the 16 inch frame or the earlier?
98CDD7E6-C020-49BC-BD0A-6E663D0629CC.jpg0DABDE85-88FA-4929-82E9-F5FFA2209AD9.jpg
Look like the earlier frame. Show us the back side.
The earlier frame was designed for mounting on the back side of the baffle. The 16” frame can be rear or front mounted.
Enjoying Altec Speakers since 1972
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