Rolling Stone: Orthophonic

[Uncle Vanya]

Remember that even the pre-RCA Victor company was moving away from mechanical reproduction with their RE-45 machine. This machine was not only a very fine reproducer, but was a tremendous sales success. Total sales of this chassis were something ovr 300,000 units, with less than a year in production.

[Victrolacollector]

I have had the opportunity to own a Columbia model 163 and ended up selling it, it awesome bass and great reproduction from electric recordings. I also heard a console Viva-Tonal and it sounded like a electric machine to me, it seems Viva-Tonal just got lost in the shuffle.

[FloridaClay]

Now all you have to do is get the surface area of the bottoms of the four muffins under the Credenza, and calculate the distributed load. I just tilted mine back and it looks like they're about 2" across. There are little metal buttons under those too, maybe 1" diameter. if you're on a uncarpeted floor you use that dimension, but if there's carpet you might get benefit from the extra width above the button.

So the worst case is 183 pounds divided across four 1" diameter buttons (which, nicely, are about 0.78 sq in surface area). 183 / 4 = 45.75 pounds, and 45.78 pounds / 0.78 sq in = 58.65 psi.

Now let's hope most of us weigh somewhere near 183 pounds as well. And that our feet aren't too big. My size 9 birkinstock just measured out to about 11" long by 4" wide at its widest point, or 44 square inches if rounded up to a rectangle...so let's say 35 sq in. Thus, walking around, we exert pressure of 183 / 2 = 91.5# and 91.5 / 35 = 2.61 psi when standing still on both feet. Or 5.23 psi when imitating a flamingo.

But your Credenza is a static load. It doesn't hop around or jump up and down, like you, a dynamic load. So all bets are off anyway, math notwithstanding.

<pause>

So I wrote all that stuff above, then went surfing for building code standards for residential floors...and came up with this killer article. It's aimed at aquarium people, with whom I never realized we phono people have so much in common.

(Even more so when playing Shep Fields records on the Credenza, but I digress.)

It also effectively debunks my attempted science up above. Check this out:

http://www.cichlid-forum.com/articles/a ... weight.php

Long story short: get your Credenza!

An interesting article.

Clay