HP 4145B

17 discussions on ElectronDepot about the HP 4145B: what owners asked, what went wrong, and what fixed it.

What owners report

Rectify 500MHz Small Signal

Anyone have clever ideas for rectifying a 500MHz sine wave, amplitudesay 50mV to 500mV peak-to-peak?Half wave is OK.1mV accuracy is needed :-(Process is X-Fab XB06.Thanks! ...Jim Thompson-- | James...

Amazon

Amazon has a surprising amount of electronic components for sale. Prices can be a fraction of Digikey. I wouldn't trust these for production, but they look interesting for experimenting. And I can just click and get them in a day or two,...

typically stupid ED article

It's sad how bad the electronics press has become. -- John Larkin Highland Technology, Inc Science teaches us to doubt. Claude Bernard

nice DVM

My old handheld finally got weird, so I got a Fluke 17B+ from Amazon. It's really nice. It measures capacitance, frequency, and temperature too. The thermocouple needs a dual banana plug, which is kinda weird. But I blew a fuse in the...

Interesting GaN power part: A3G26D055N

125V VDSmax, asymmetric dual depletion-mode GaN FET in common-source connection.It's characterized for 100 MHz to 2690 MHz, which probably means no internal matching network, so it might be good for fast switching.Weirdly it has no I_Dmax...

phemt colpitts: beads

Tried some 0603 ferrite beads in the gate of my SAV-551 130 MHz triggered Colpitts oscillator. Phil's suggested 5 ohm Murata bead: parasitic oscillation, lots of jitter 25 ohm same series, ditto. 125 ohm bead from stock, ditto 301 ohm...

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