HP HP35

60 discussions on ElectronDepot about the HP HP35: what owners asked, what went wrong, and what fixed it.

What owners report

2066-pin processors

I enjoyed huge success with my last home-made computer. 2011-pin Intel processor, four 128-bit memory channels. Now I'm going for Core i9 X299 and LGA 2066 pins. More pins are better. -- Thanks, - Win

Boost Converter Efficiency Improvements

I need to generate approx. 200V at 20mA from a 12V supply. My first attempt is a multiplying SEPIC (i.e. the 2nd inductor is connected to the output of the first stage, instead of ground). It's working reasonably well but I'd like to...

interviews

We're interviewing design engineers and interns, all EE graduates or soon to be. So far, nobody knows the basics of what an opamp or a transistor does. One guy, prompted, got an opamp output polarity right; we might hire him. This is good...

another LDO

Seriously, I need another LDO for a new gadget. It needs to work downto maybe 1 volt drop, and needs to be very accurate, especiallylongterm drift and TC. How about this?Joerg will be pleased to see a depletion fet. Jim will find...

All discussions