Quote:
Originally Posted by ivconic
Esteban, the way you described it - it is still capacitive coupling. So, maybe replacing 20pF with some smaller capacitance will do the job also?
Regards
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Hi Ivconic,
yes I noticed that too. 1pF still capacitive.
But I think Esteban talk of something different maybe (hope he will answer about) like that capacitor must be small in value and not "common".
Where for not common he could maybe mean that must have some special feature like e.g. ultrastable capacitance...
Do you remember old vacuum variable capacitors found in old military radio equipment ? Some can go at around 1pF values and stay VERY stable cause temperature and other external variations have very little impact on params.
Also, I think he mean special cap required must have hi-voltage rating, but that are all my assumptions based on what he reported about the ca3130 burnt by a treasure "energy field" detection.
Esteban , what about that stuff ? It's a special cap , isn't it ?
Kind regards,
Max