Rev Mook @rev_mook@lsngl.us
- LOC
- DM04ub
In all the years I've been wrenching on these #SSL #recording #console modules, I can't ever recall a #TTL #logic chip failing on me. (#Neve modules, different story) This chip contains four, two input AND gates which drive a few transistors that serve as #CMOS level converters. From here, a 4051 #analog multiplexer in current mode routes signals from various places to a cross-coupled non inverting voltage amplifier that eventually feeds bar graph meters.
@ReverendDak How much Mountain Dew did it take to make this?
telnet towel.blinkenlights.nl
Giant variable capacitor. Useful for getting the impedance of long circular shaped wires down to 50ohms above 3Mhz. #cq
@JohnM7POE Hello and welcome!
If you'd like to toot an introduction with the hashtag "introductions" I'll give it a boost and see if we can get you some more followers 😁
You can find more people in the instance in the directory
https://mastodon.radio/explore
(you can opt into this too)
And there are apps!
https://joinmastodon.org/apps
Happy tooting!
@alrs Have you looked into POCSAG / DAPNet? https://hampager.de
Anyone use FreeDV? https://packages.debian.org/sid/freedv
External source select panel from large format audio mixing console. A single faulty switch tripped the logic out in the entire center section. New switch = all good.
🇳🇱
The first draft of the PCB protoboard I designed arrived. It is more beautiful than I could have imagined.
#RF #EE #Electronics #Engineering #Science #ElectricalEngineering #RFEngineering #HAM #hamradio
A transmit converter (and amplifier) for 630 and 2200 meters:
http://ka7oei.blogspot.com/2019/01/a-transmit-converter-and-amplifier-for.html
I really enjoy this blog. It's always super detailed!
Packed some radios on our steel bikes to ride up a hill for amateur radio field day. KK6TGM & KJ6CBE
50Ω dummy load for testing ham radio transmitters built into a quart paint can. When complete it will be filled with mineral oil to help dissipate the heat.
My mistake was in following the directions! My beautifully soldered resistor network didn't fit in the can. Crimping them made it small enough to fit through the opening.
Next step will to build a nano powered power meter that will plug into to banana jacks.
- LOC
- DM04ub
