Electronics > Repair
HP-8569 Spectrum Analyzer Repairs
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AF6LJ:

--- Quote from: KD0CAC John on April 16, 2018, 04:51:39 pm ---My newest one came from someone on the ZED , and did not have all functions , then more quit after looking into it more .
I've read that if in storage sitting on the feet on back / front facing up , that some lube ? in the main oscillator flows over time and you can loose the signal , have you come across this ?
   

--- End quote ---

I have not heard of that, wow...
AF6LJ:

--- Quote from: rob.manderson on April 16, 2018, 07:06:41 pm ---I'm guessing you mean the 8640B?  If so, yes, it's not good to store them on their front or back because the cavity lube flows.  I haven't seen it myself but I understand it can take months(!!!) to get back to normal.

Otherwise, a fine signal generator and you can have mine when you pry it from my cold dead hands!  :-DD

--- End quote ---
I feel the same way, as a matter of fact I would love to have two.
BravoV:
All photos are gone Sue, suggesting to use forum's attachment feature rather than external hosting.
AF6LJ:

--- Quote from: BravoV on April 17, 2018, 01:30:54 am ---All photos are gone Sue, suggesting to use forum's attachment feature rather than external hosting.

--- End quote ---
Photos are too small when using the attachment feature.
When I have time I will repair the thread...

WastelandTek:
It has been a long time, and I am well aware what a pain in the posterior repair of the thread would be, but I would like to plead with you to take the time for the sake of future restorations.

I had the pleasure of reading this thread before the photobucket fiasco and it was absolutely top notch.
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