Happy EISA
| Website | https://mossyvale.co.uk/ |
| Bluesky | @synx508.bsky.social |
Philip Bragg
- 380 Followers
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Mostly electronics and all sorts of synthesizer, he/him.
Stereo processor update: I decided I needed to integrate the overshoot compensated dual 15kHz filter because it is so closely linked to the preceding clipper, so here that is. It deserves better capacitors than these old Soviet ceramic plates.
Matt W1CDNAre there any good guidebooks that include walking through both a) basic RF circuits and b) using an oscilloscope to test them?
Seems like it would be an interesting focused course.
(No, I haven't looked for myself yet. I'll get to it.)
Andrew ZonenbergThis is NOT a commitment or statement of intent to build such a tool.
But if it existed, how likely would you be to use a libscopehal-backed T&M application for iPad? This would not be a port of ngscopeclient, it would be a from-the-ground-up touch first GUI backed by the same suite of protocol decoders and hardware drivers, and probably reusing a few of the waveform rendering shaders.
Maximum memory depth would be limited to probably 10M points or so by available RAM, and it would likely not be possible to exchange scopesession's with ngscopeclient exactly, although there would probably be some sort of export capability to at least interchange waveforms.
Android is significantly less likely of a target because apple silicon's graphics/HPC capabilities are so far ahead of the competition, so if a tablet based platform were to be created apple silicon is the natural target.
Would definitely use
Might be interested
Would definitely not use
Other
Poll ended at .
BoscoGood night and sweet dreams. Greetings from the star destroyer.
#hp #agilent #keysight #tektronix #rohdeundschwarz
#hp #agilent #keysight #tektronix #rohdeundschwarz
Nearly 2W out with it running from 24V. Pretty sure I didn't try this back in the 80s.
Yes, that's a Home Office logo on my power meter's 19" panel. It was from a decommissioned emergency services radio site, sold at, I seem to recall, the McMichael rally when it was still held in Burnham at the community centre.
I'm sure my original had a sniff of bias, which often increases the gain. I might try that, but not tonight.
Actually it’s doing a bit more than 1W but not much. (bottom scale divided by ten for my 10B element)
I built my first FM transmitter in the late 1980s using bits that I had lying around, with no real knowledge of RF but a tenacious approach to trial and error. I had a 2N3866 driving a BD139 to get around 1W. BD139s are audio devices and I have a drawer full of them so I thought I would verify that this really works. It does. It’s very stable owing to the meagre 3dB or so of gain. DC efficiency is an excellent 85% for the amplifier in isolation and you have to ignore the fact that the driver is using more current!
