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I'm sure my comment under that YouTube video got deleted by Mark, but I explained why his "test" was useless. Sure, the Max-Mod heated up slower, but was that because it was creating less heat or because it was taking longer for the heat to transfer from the internal die to the outer mounting...

Like I said before months ago. There is only one person that shows a clean envelope from the 2030+ parts. More power to him if he likes them. I don't care for the 2030+ myself. Nobody has shown a comprehensive datasheet for them. They have a large gate capacitance that make them difficult to...

Yes, the homebrew segment of the ham community seems to use the IRF510 quite a lot in their SSB & CW QRP type transceivers. They seem to provide a pretty clean output as long as the power is kept fairly low. Brad

Yeah, I'm not going to get upset about not being able to use 8 FETs that were like $1/each. I'm also not going to spend any more of my time fussing with them trying to figure out how to make them work. It's not worth my time. I'm not a technician, I'm a hobbyist with some test equipment, and...

Andy, it's not that I don't believe what you're saying, it's that i don't really understand what you're meaning. The image in your post with the 3 diodes in parallel with the trimmer; what type of radio is that from? I'd like to look up the entire schematic diagram to get a better view of what...

It's hard to tell. I've seen the RCI based radios fall off significantly in quality control over the last couple years. I don't see them doing any type of innovation unless something within changes. When was the last time they put out anything with a new design? Wasn't the last evolution of...

Andy, that is a whole lot of writing there, and I'm not really getting what you're trying to say here. The diode to ground in the bias circuit of a bipolar transistor isn't there to define the class of operation, it's there to provide rudimentary thermal tracking for the bias current. The...

Funny that you'd bring that up. I was just talking to a couple people in a YouTube comments section about that the other day. I have quite a few of that family of FETs and they are spectacular. I use the RD00HHS1, RD06HHF1, RD16HHF1, and the RD100HHF1 FETs in my homebrew projects. I'm sure the...

I know this thread is old, but has anyone figured out how to drive these ERF2030+ parts yet? I've tried them in a handful of different radios and the only thing I've ever gotten them to work decently in was the Connex 4400 Turbo. And it took quite a lot of fiddling to get it working. They are...