28 May
2019
28 May
'19
6:55 p.m.
On Tuesday, May 28, 2019, 10:36:10 AM PDT, William Donzelli via cctalk <cctalk at
classiccmp.org> wrote:
Those knobs look like they are cast pop metal or zinc or something,
not Bakelite.
--
Will
They are metal for sure. Probably cast. They are smooth, though there's a bit of
corrosion and pitting on them now.There's a set screw at the bottom of the back
side.?
Dwight suggest casting one. I've never done casting before but this might be a good
thing to try it on.Would have to drill the shaft and set screw holes afterwards, and a bit
of finish work to make them smooth.It's a cool panel so probably worth the effort if I
can't find one out there somewhere...
Bob
On Tue, May 28, 2019 at 1:27 PM Electronics Plus via cctalk
<cctalk at classiccmp.org> wrote:
Looks like a standard old Bakelite type knob to me. I pulled a lot from old equipment 30
years ago. I will check to see if any got salvaged.
Cindy
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Bob Rosenbloom via
cctalk
Sent: Tuesday, May 28, 2019 10:57 AM
To: William Donzelli; General Discussion: On-Topic and Off-Topic Posts
Subject: Re: looking for an old IBM knob from a 609 calculator panel
On 5/28/2019 6:42 AM, William Donzelli wrote:
I think that is an IBM specific knob. I will keep
an eye out for one,
but do not hold your breath! It is certainly not a common knob.
Is it for a 1/4 inch shaft?
--
Will
Yes, it's a standard 1/4" shaft. Might try and get one 3D printed if
I
can figure out how to draw it.
Bob
On Mon, May 27, 2019 at 11:41 PM Bob Rosenbloom
via cctalk
<cctalk at classiccmp.org> wrote:
> A long shot I know, but I'm looking for an IBM knob that's missing from
> a 609 calculator panel I have.
> Photos can be seen here:
>
> http://dvq.com/ibm/ibm-609-pnl1.JPG
> http://dvq.com/ibm/ibm-609-pnl4.JPG
> http://dvq.com/ibm/ibm-609-pnl5.JPG
>
> I have no idea if the knob was made by IBM or was a common knob of the
> times.
>
> Thanks,
>
> Bob
>
> --
> Vintage computers and electronics
> www.dvq.com
> www.tekmuseum.com
> www.decmuseum.org
>
--
Vintage computers and electronics
www.dvq.com
www.tekmuseum.com
www.decmuseum.org
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