Not that John Larkin has a lot of theoretical baggage to cut through.
Preconceptions are a different matter.
A good video about decoupling capacitors
Sep 01, 2025
Last reply: 10 months ago
46 Replies
The Pico stuff is notorious expensive.
This one is 600 EUR, inside is just a ceramic capacitor and a PCB
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But, the time it takes to build, sometimes it's just more economical to buy
We are doing some high voltage pulsers lately, and we need high voltage 50 ohm attenuators. I was playing with making our own.
This is terrible:
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A PCB from JLCPCB plastered with a hundred 1206's?
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Yes. Not hundreds, but a dozen maybe. I theorize that thinfilm resistors will stand more peak power for short HV pulses, as compared to thick films, but I need to test that theory.
Geometry will matter.
I wonder how people manage to make giant 250 watt 10 GHz attenuators, to get the heat out but keep the impedances right.
I ordered a Pasternack atten that claims to tolerate 10 KW for 5 usec.
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I always get confused by the power specs of low-value attenuators.
1dB and 150W: Is that the power applied or dissipated?Jeroen Belleman
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