T&L Publications

The ones I have used in the past look like a CPU heat sink, about two cubic inches and lots of fins. With a fan they easily cool down. Try All electronics, they usually have them. Ill see if I can find a part number, also mouser and a few others have them but their mins are higher. All Electronics i...

Talk to Michael.

Mine was out on the time, and it wouldnt budge.

I couldnt even find it? Id click and nothing.

Your perfectly fine in those F ranges. You say relays, but as stated earlier by some one else, most aren’t that sensitive. Actual voltages can vary quite a bit and most have a min and max rating, and because of the swing in voltage and the hi resistance values, they usually can swing any where fro...

They do have soft ware for the computer.

Pure scrambling I assume, not voice changing?

Also PGP has some method of scrambling the voice using his code.

But I have to assume both use the services of a sound card and a computer.

F is fine
C is not

You said You went over?

Also it might even be above the shutoff temp.

That would be C, not F.

85 is OK, 140 is not, especially if yours is the lower 125 c. Especially Not being the plastic model, with T03 metal and large heat sink, no. Two things you can do, one is turn off the power to the trans then check it with the digital probe, the second test is the drop of water. Some digitals will g...

Im shaking in my boots, friends and learning arent the same thing.

I rather they learn any day and they can save the friends for the bar or the foot ball game later.

Theory and the books are for kids, they are fine if you haven’t learned things yet while o- scopes and such are when you take a hobby and make it into a serious constructions job up there with the hoover dam. I prefer to learn and experiment along the way, that way you get an education along with ...

With both the string of parallel diodes or a huge resistor of one ohm, you have to consider the resistance of both, the voltage drop across each one, the wattage dissipation of both, the size and the cost. You also have to consider is the final out put voltage acceptable if the regulator is fixed. I...

And I looked at exactly where you stated, [and in more than one web page and print] and there is nothing in that section that "forbids" any thing even resembling an extra neutral ground, and then after that, it led me to dozens of other examples, all stating that it is permissible includin...

You do have a huge heat sink on it. If so, and you have a thermometer, then try and watch the value directly at the reg plastic. Also a drop of water on top can tell a story. [match stick and drop] It is incredible but in some circumstances they will dissipate a lot of heat, and they can burn. I don...

When it comes to diodes everything is an assumption. The book says these values, the class room teaches the same, and every diode is different. I have used diodes many times for many things while a dozen 4001 [or higher] in parallel only cost you a buck or less. Any resistance in one is dropped, the...

Regulators can boil water and still function.

Their heat rating is quite high.

[150 C / 302 F and they do have thermal shut downs]

Do you have heat sinks on the reg?

Al They absolutely do drop between .3 and .7 volts depending on the type of diode, like I mentioned above. From memory the LMs I did were the 12 volt and variable 0 to 37 volt LMs. Most were large power deliveries in the amps, [ less sensitivity was needed] and the diodes and the accompanying voltag...

Al

With good ground it always works.

With a poor ground the code says use things like a slab, or a water pipe.

Even in sand, a slab or a long water pipe will do the job.