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Tektronix 7104
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Hi all,
It's been a while. I hope everyone's doing just great!? I lucked into a 7104 for the princely sum of $20 ($40 added a couple of 7A19s and a 7B92A came "free," all basically functional as I've seen home). Go swap meets!! Still exploring it and assessing functionality, but so far so good. One thing I'll need to look into is the power light bulb. I think the part number is DS308, and may be a 5V bulb. I can't really confirm this from the SM - has anyone looked at this recently, and can confirm? I think replacing it involves separating the display unit from the base (involving some "kickstand?...") - if anyone can shed any light on the process I'd appreciate it.? Thank you, Radu.? |
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Radu -
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The 7104 is a very interesting scope (I have something like 3 of them). Does your's work - if so, are there any burns on the CRT. You need to be particularly careful of intensity - there is a warning LED that tells you to turn the brightness doen. It is relatively easy to "split" the unit by lifting the front of the top half up and leaving the rear hinged - completely splitting the two halves is harder. It requires disconnecting multiple cables and is in my mind a "bitch." Getting to anything mounted on the top of the bottom half is something less than fun. Remove the trim covering the top and bottom half separation, then there will be some screws (as I remember) and you can lift the front of the top part. There is a "kick stand" to support the top part. Do you have a manual copy? A second question - did you ever get the 7903A to CA from the east coast? Cheers! Bruce Quoting Radu Bogdan Dicher <vondicher@...>: Hi all, |
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Radu,
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I have some video out there on this topic. It is a 7854 not a 7104 but the mechanism is the same. Here are the 7854 links LED upgrade - 7584 Lab Check in - Zen -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Bruce Sent: Tuesday, May 2, 2023 2:49 PM To: [email protected] Subject: Re: [TekScopes2] Tektronix 7104 Radu - The 7104 is a very interesting scope (I have something like 3 of them). Does your's work - if so, are there any burns on the CRT. You need to be particularly careful of intensity - there is a warning LED that tells you to turn the brightness doen. It is relatively easy to "split" the unit by lifting the front of the top half up and leaving the rear hinged - completely splitting the two halves is harder. It requires disconnecting multiple cables and is in my mind a "bitch." Getting to anything mounted on the top of the bottom half is something less than fun. Remove the trim covering the top and bottom half separation, then there will be some screws (as I remember) and you can lift the front of the top part. There is a "kick stand" to support the top part. Do you have a manual copy? A second question - did you ever get the 7903A to CA from the east coast? Cheers! Bruce Quoting Radu Bogdan Dicher <vondicher@...>: Hi all, |
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Radu -
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Depending on what is needed, I can probably come up with some parts. Cheers! Bruce Quoting bruce@...: Radu - |
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I'd probably cut the cables and sub an LED+esistor - AFTER checking that there was in fact +5 on the wiring.
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Cheers! Bruce Quoting Stefan <fres@...>: Radu, |
Stefan
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