View Full Version : Compaq Portable drive mount isolators?

May 22nd, 2016, 02:30 PM
I'm trying to find a source for the drive isolators used in the Compaq Portable (1).

Here's what's in the system:

Barry Controls Duo-Plexx 7820-4 plate isolator


Here are the dimensions:


A:16mm (15mm would work)
B: 35mm
C: 25mm
D: 1mm

Dimension image stolen from McMaster Carr

McMaster doesn't seem to have one that's this exact size. I suppose I could use some spacers to make the "A" part of the isolator longer, but I'd rather not fuss with trying to keep them lined up.

Any suggestions?



May 22nd, 2016, 03:23 PM
Shock mounts are available in a bewildering variety. Do you see anything here? (https://www.vibrationmounts.com/uses/electronics.htm)

May 22nd, 2016, 04:47 PM
I see things which are close... and almost $20 each :o

I'm still looking. Here's a better set of measurements on the one in the Compaq:


l= 36mm 1.414” (this is a common size)
L= 44mm 1.75”
OD = 25mm 1”
a=10mm .40
A = 16mm .625
DM = 31mm

May 22nd, 2016, 06:00 PM
In years past, one of my favorite vendors of engineering findings was Small Parts, Inc. Sadly, they're no more, though I still have a few of their old catalogs. Wonderful things full of "what would I do with that thing?" stuff.

There seems to be another vendor still in the same market, SDPSI; Here's their anti-vibration product line. (http://www.sdp-si.com/products/Vibration-Mounts/index.php)

June 5th, 2016, 08:13 AM
So to finish this thread up, I found all the pieces I was looking for, and mounted the drives in a way I didn't need more shock mounts.