Anyone know where I can find a spec sheet for an H-808 horn?

[analog addict]

Here you go

Attachment 2213

Thanks! Except there's only one problem. That's the 511 and 811 horn, so I guess it doesn't help me.
Appreciate it anyway. You wouldn't happen to have any more of those types of Altec drawings, would you? I'll bet a lot of folks around here would love to see them....

[Altec Best]

It's interesting to see the dates on that drawing and revisions... 1952-1958

[GM]

At least we now know for sure when the 511, 811 were 'born'.

GM

[mah]

Patent search?

Some guidance, here: Lansing-related Patent Parade

Interesting thread, anyways.

[GM]

AFAIK, Wente's patent covers all the multi-cells regardless of the manufacturer until it ran out, though don't know when that was: Patent US1992268 - Acoustic device - Google Patents

GM

[dbale]

At least we now know for sure when the 511, 811 were 'born'.

GM

It also shows the death of the tar filled with the revised weights