Sorry I don't have any that go up that high on the volts scale only to 50 I don't know if you could detach the clear ring from the knob part and reglue another knob onto it I have knobs in good shape with the black ring inside the front opening I probably have a shaft also just need the length have a bunch of different lengths.
Jim
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----- Original Message -----
From: "Robert Muth" <muthrb@...>
To:
[email protected] Cc: muthrb@...
Sent: Thursday, July 26, 2018 6:30:03 PM
Subject: Re: [TekScopes] Tek 485
Hi Jim,
No, I have not been successful yet. I've attached pictures of both knobs. In case the attachments don't go through, the clear flange on the Volts/ Division knobs are marked 5, 10, 20, 50 mV, then .1, .2, .5, 1, 2, 5, 10, 20, 50, 100, 200, 500 V. the red cal knob button does have a black band and face. I have both red cal knobs. The phenolic is broken on both Volts/ Division knobs and one of the shafts for the red & black knob is missing.
Bob
-----Original Message-----
From:
[email protected] <
[email protected]> On Behalf Of Jim Olson
Sent: Wednesday, July 25, 2018 11:15 PM
To:
[email protected] Subject: Re: [TekScopes] Tek 485
Did you find a knob for your scope? I have some for different 4** series scopes how is the clear flange marked and does it have a black ring around the cal red knob?
Jim
