Tektronix Model SC-504 80MHz Dual trace oscilloscope plug in checked, working for Sale

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Tektronix Model SC-504 80MHz Dual trace oscilloscope plug in checked, working For Sale

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Tektronix Model SC-504 80MHz Dual trace oscilloscope plug in checked, working:
$198.00

Tektronix Model SC-504 80MHz Dual trace oscilloscope plug in checked
checked in a TM-504 - Please see the pictures.
Note: I've found that these scopes are very sensitive to the mainframe! Several TM-504's I used produced odd results with the display. When I changed mainframes, like going to my TM-506, it worked flawlessly. I checked this in a TM502, TM504 (* note my experience varied on the TM-504), and a TM 506. Again, please note my issues with the TM-504. I can't be held responsible if your mainframe is bad and causes damage to this plug in. I'd love to ship you the mainframe it came in, but the shipping costs are insane.
Cosmetically - Please note: The inner position (I think Ch1) is bent. The timebase knob is missing plastic... Please see the pictures!! I've pointed these out.
Both channels work and basic functions checked. The controls are dirty and will need a cleaning. I've not opened it up. Looks to have low use as the CRT is nice and bright. Calibrator checked, but appears to have noise in the waveform. Confirmed it is not the scope with a low frequency square wave.
No probes, test leads, or signal generator is included!You will receive the SC-504 plug inonly shown in main picture. An equipment used for testing including the mainframe, test leads, signal generator, is NOT INCLUDED!
Please: No returns. Be sure this is what you want. Do your research. If you have questions, please ask before hitting the button. If you initiate a return, you agree to pay return shipping, if not, please don't purchase.