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I am trying to understand how this thing even works.
You have two devices that are rated for 100 watts.
Let's say perfect world and easy math that's 200 watts.
The input to each of these devices is ~10 watts.
How the hell are they driving these with an amp stage that's like 60 or 80 watts and...
As an aside to the above.. I typed this in and then removed it but upon reconsideration, why the hell not. It will make the the CB guys cringe a little.
I am working on a Christmas tree project and I needed some MOSFETs to switch some moderate loads. Normally I would buy a tube of IRF520s from...
That's a more common mistake than people realize and on the EE portion of stackoverflow all the time.
They don't understand why the MOSFET they connected directly to their GPIO (BAD) just stays on all the time.... surprise! gate capacitance and not ensuring the state of your GPIO with a...
I agree. It does matter.
But keep in mind these gimmick parts with no datasheets like the ERFs have mystical properties I liken to the unicorn and we have no real way of knowing what these things really are. Obviously they were binned to be close enough to work for either of the prevailing...
Are we talking about MOSFETs in general or the fantastic properties of matched ERF2030s?
There is no datasheet, remember. We have no idea what the gate capacitance is unless I sit here and characterize a few of them and I don't feel the need to bother with it, tbh.
Not the gate capacitance, no.
But it will for Vgs.
The people matching these and selling them are only interested in Vgs.
They don't care about gate capacitance. It's a gimmick, remember? :)
When we were looking at ERF2030s they looked suspiciously identical to the FQP13N10s we were trying at...
A MAJOR problem with these is the NP0s they used were likely not NP0s - or VERY bad ones and from what I can tell they are 20% parts.
When you have that much variation you have drift. Replace their NP0s with REAL NP0s and something a tad better than 20% and you will be fine. We tested this in a...
I don't think people dislike him.
They just call out the nonsense.
I expect his troll army to be along soon to defend his ehonor on WWDX and argue he is the only one on the planet that can work on radios.
His calibrations are dubious at best.
Those have been debunked yet he still waves them around because the average CB user is impressed with paper. He only shows the corner of it anyway.
No need to rehash it yet again. He will keep waving it around for his flock like it's a golden ticket to...
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