ADM-3A question

[Warner Losh]

On Sat, Aug 10, 2019, 6:02 PM Bill Degnan via cctalk <cctalk at classiccmp.org>
wrote:

> The clearing of the deteriorating adhesive is documented here and there on
> the web, use heat to separate the outer from the inner screen.  Remove the
> inner screen and clean the gunk from the inside of the outer screen...in
> summary ...here are some details
> http://www.retrotechnology.com/restore/adm3a_nick.html



It's a common problem in monitors in general from that era. I have one
monitor for my Rainbow with the pox (and a bad csp so the pic is bad). I
have another with just a bad cap or three but bo pox marks. I'd fix both
but the high voltage scares me...

Warner

>
> On Sat, Aug 10, 2019, 2:30 PM Charles via cctalk <cctalk at classiccmp.org>
> wrote:
>
> > >On 8/10/19 8:33 AM, Charles via cctalk wrote:
> > >> I also scrubbed off the black anti-reflective coating since it was
> > >> significantly scratched and peeled anyway.
> > >
> > >um.. you didn't remove the aquadag from the outside of the crt, did you?
> >
> > No worries Al, I got my EE in '81 back when CRTs were still in use and I
> > know how they work ;)
> >
> > I was referring to the translucent stuff on the (removable) glass
> > implosion
> > plate itself, designed to reduce light reflection, not the 'dag.
> > Some say that black sheer pantyhose can be used to recreate the same
> > effect,
> > or a 3M Privacy Screen.
> >
> >
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>