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...cough...cough...snort...gasp...

Not me but everywhere else. There are zombies staggering up the street. So I might pay more attention to what is going on here.

I have this schematic of changi ...

Worth reviewing and thinking about...
https://tinyurl.com/Navy-touch-screens

Basically, real buttons, knobs, handles and toggle switches are preferable.

Don't let "modern" be the enem ...

Bob has expressed his frustration regarding phone security, especially landlines.

By this time I would have surrendered mine to the spammers and phishers except for purchasing a "CPR Callbloc ...

I want to add to what Bob N. said. The proper title is "carbon pile regulator." These use a variable resistance load composed of a pile of carbon disks (usually with an alignment hole in the ...

Sorry Charlie...the Trim box is on the last page. I couldn't find my file of the trim box alone.

Attached is my file of the trim box and the bar graph. I have some others if I can find them...I had ...

Hi Charlie,

I have a bunch and have posted some over the years. Here is the Trim box.

Eric

Tight connection are good to a point. After that, they can induce stress in the terminal...which was probably made of recycled crap anyway.

Stress cracking, leading to failure. Only my guess.

Barry,

You obviously took the opportunity to attack me and the idea instead of reading the literature.

CCA is not "Plated". It is 10% copper in cross-section. Copper is not the " ...

Eric, is the copper clad aluminum cable as stiff as copper of the same gauge?

Well, it's complicated. I don't sell this as replacement for Mogami microphone cable. Big cable is stiff cable UNLESS ...

Years ago Bob N. put togther a little collection called the "Economics of Weight Reduction", in which he had a piece I had written. It is still on the Aeroelectric Connection, but I attach i ...

Don't forget the Perihelion Design Copper-Clad Aluminum cables. They save 1/2 the weight of a copper cable.

First of all, low voltage IN GENERAL does not cause a fuse to blow. Look at all the cars with dead batteries for an example. Fuses are never even investigated.

Two phenomena contribute to the notio ...

Reposted from a few years ago, but this might help.

EDN of 23NOV1995 had an article entitled: "Assume nothing. Test everything." which was a small guide to troubleshooting philosophy (alt ...

I am glad to see that there is great interest in the deslumpifier, and that Eric Page has made these available.

I don't intent to sell these. Too many other things to do. BTW: There are BIG Superc ...

I am reluctant to get into another long discussion on the subject of
coil suppression but I encourage Googling the various extensive
resources on this subject.

Note that there are many techniqu ...

This subject has been discussed here for years.

My opinion and what I have suggested for years is that the current best
practice is to use bidirectional zener diodes. Regular diodes are
problem ...

Yes, it looks strange. It probably prevents the ammeter from slamming backwards when the external ground power is applied?

Great subject. DX.com has several of these for a few bucks. They have reasonably fast shipping.

Two thoughts: This is a perfect place to put a perfect female voice from a coworker, sister, friend, ...

I posted an article some years ago on LED beacons. (attached) At the time they LEDs were marginal but now are easy. (Whelen's engineers probably used this information in their beehive beacon...or if t ...

Bob is right. The ten LED trim position indicator detects the reference 1.2V FULL SCALE. At the LSB it can only read 0.12 V which is below the noise level in the environment. This is not hard to fix. ...