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Slightly off-topic but still noise toy related: Anyone remember the TI SN76477 sound effects chip? Used in a LOT of video games of the 70s and early 80s. I still have one in my junk box. One of the electronics mags of the period had a noise toy construction article. I played around with the...

How familiar are you with troubleshooting - specifically, tube PA circuits? For starters, have a look at all voltages involved with the final. Specifically, screen grid and plate. Be careful. Are any of these dipping as you transmit? And when looked at via scope, are they clean, stable and free...

Seems the CA3045/3046 is available in SOIC as well as DIP. Might be a little more life left in it.

"Ain't nothin' worse, than an out of control Hearse" - some random YouTube clip

The best way I can describe DSP artifacts is that it sounds like you're talking under water. Very low levels of DSP filtering (just enough to remove the most bothersome background noise) aren't that objectionable. Get more aggressive with the filtering and it's definitely noticeable.

Insert Samuel L. Jackson "English" meme here.

What I do is apply some with the solder pencil of my rework station, hit the part with hot air (lower temp than required to melt 60/40 or similar solder) or use a Thermo-Tweez handpiece with the appropriate tips. After the part is removed, flux and clean pads with a Sodr-Xtractor, melt some...

There are base consoles listed for sale on the auction site from time to time. For what they are, they fetch $tupid money. Yours looks good.

Chip Quik is your friend. What type of hot air station do you have? Nozzle size?

I try to keep those frequencies in the memories of any receiver that's capable of storing and scanning them. Have heard traffic a few times over the years but none in English. Another favorite thing was monitoring 27540 for packet radio transmissions. I had many megabytes of those exchanges...

I like radios with good sensitivity and adjacent channel rejection. What I've mentioned (with the exception of the Royce rigs) were at the top of the heap "back in the day". Check out the JRC NRD/NSD-515 twins. Same philosophy as the Browning and Demco twins. If JRC would have offered a type...

And let us not forget the Echo Charlie band...

TRS Challenger 1200 and 1400 Stoner Pro-40 (have a couple plus several accessories) CPI CP400/2000/2500 - the only accessory I don't have is the scope Whistler 900 - the dual receive is neat Royce 624/625/639/641/642 Hondaline transceivers for various GL1500s JMCB-2003s for my sport tourers I...

Belarus is a puppet state of Russia. I'd expect nothing less from that outfit.

Can they get the "1-1-1-1..." jackass who continually renders Ch38 unusable? That's been going on for ages.

ULS is still up. I just searched my GMRS call with it.

This reply is going to get a bit convoluted. So bear with me. If you're monitoring a handful of known frequencies there are many options to choose from. Searching the entire air band - especially the UHF Mil allocation - gets into some specialized hardware, software and techniques. There are 4...

I had such a gig right out of high school (when the "boom" was in full swing). It got one invited to lots of interesting places, parties and whatnot - and was (to keep things polite) a license to print girlfriends at times. Fast forward to nowadays, and being a guru in things PC: You can't pay...

I ran mine (2510) mobile in the early 90s with a 1/4w whip on the bumper. Worked Africa and Europe on the way to work; AP on the way home. The occasional trip south put the vehicle in the right orientation to work LATAM. Never bothered to send the cards in but DXCC was like shooting fish in a...

I have the whole stack: HR-2510 HR-2600 Original Lincoln HTX-100 One of these days I'm going to fire up my CAD program, design a set of side plates to mount 1, 2, 3 or 4 of them then send the files off to a laser cutter for a set of each. We have "President's Day" on our local 10M net from...