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High voltage oscilloscope probes, make or buy?
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artur_j:
The thread is fairly old, but in case someone would seek the more detailed information regarding re-filling original Tektronix P6015 probe with silicone oil, please have a look at AN-108 application note, which can be found  here - www.reb3.com/pdf/AN108.pdf
The document includes also some remarks about modification of the compensation box and tuning of the modified probe.

In case the link would be deactivated, see also the original file as an attachment.
kbrill:
Caution must be observed when purchasing R114a particularly in smaller quantities as it is likely to be reclaimed .
Virgin refrigerant is required for safe operation as purity of recycled refrigerant may not be sufficient for HV usage .

Ken 
HighVoltage:

--- Quote from: artur_j on July 28, 2022, 05:12:01 pm ---The thread is fairly old, but in case someone would seek the more detailed information regarding re-filling original Tektronix P6015 probe with silicone oil, please have a look at AN-108 application note, which can be found  here - www.reb3.com/pdf/AN108.pdf
The document includes also some remarks about modification of the compensation box and tuning of the modified probe.

In case the link would be deactivated, see also the original file as an attachment.

--- End quote ---

That AN108 application note is a good find.

Indeed, I had filled one of the older P6015 with a transformer oil but I did get better results with high quality silicone gel, filled under vacuum.
Xandinator:
Mine came oriented towards the handle. Since I'm having a hard time assembling it the other way I never actually thought about that, also that's the only way the instructions in the manual make sense? Apart from ease of assembly I doubt it's going to have a significant influence on the creepage.
MarkL:
I asked Tektronix technical support about the orientation of the ground leaf spring a few years back (Apr 2015).  The answer:

--- Quote ---Hello Mark,

The ground leaf spring should be oriented towards the handle. I attached the user manual which provides image on page 2-14.

Best Regards

--- End quote ---
The diagram referred to is below.

I've used it in both orientations also, but the official orientation makes more sense since the ground wire is not being launched immediately towards the HV tip.
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