开云体育

Hi Stan, As i see this new thread, i always asked myself about the use of Kalotron in the PSU of the 555 ? What’s the big iron potted case too ? I broke a pair of those PSUs many years ago and those

the arrl handbook is too basic for that. i think the ee programs are more theoretical at an undergraduate level then they were 40 yrs ago i have about 2 yrs of college but have never taken an

Here are some measurements on my 494P. After about 3 hours of operation in its normal position (45 degrees tilted up on the handle, standing on the floor inside a wood rack without much air

The winner in my collection is the 517 at 1250 Watts. Stan

Hi Andy, You asked about connectors for extender cables. There are three possible extenders you could be talking about: 1) vertical plugin, 2) timebase plugin, 3) power cable from mainframe to power

Hi, Gerald Dont know in what part of Aussie you be, but over here in the West we are often plagued with higher than normal Line Voltages, specially if u live near an industrial area or near a feeder

alot of modern equipment either just has a 115/230 vlt switch "like a pc" or a uni versal input switching supply. one simple solution for high line voltage is a filament transformer with n its

1 ] get a Your square of area=1 in the first quadrant of the XY plane, this is correct. and the The area of the square in the third quadrant is area=1 as well. Remember that Area = length * height for

Yeah, I understand. Its just to accept. But the whole brain of mine want to give the result [ sqrt(-1) = -1 ] !!! =) If I draw a carthesian coordinate system and pinpoint X=1 and Y=1 I get a square of

Reactance, Negative Frequency, Imaginary numbers, Inductance, Capacitence, complex phasors, complex exponentials, Transform math... If you have issues with these concepts then look at your options: 1.

its a shared "delusion"

Yes, I had though of that. I think, though, that I would be just as guilty of a crime doing that as I would be taking the tubes out of an early Tek scope to make an guitar amp. I think that if I got

This is not for filtering. The L manual says: "Low-frequency peaking for the X10 amplifier is provided mainly by C6002A and C6002B in the plate circuits of V5942 and V6042. With their associated

I have an invaluable book from Fairchild, published 1973. “The TTL Application Hanbook”. I checked your need, and what I can see, the only thing you need is a divide by 10 counter. The 8292 is

Looking for GAP/R (Philbrick) amplifiers might help. Some of those were chopper-stabilized and used IIRC Airpax choppers. Cheers, Kuba

Hadn't we all :) That's like with some "advanced" and "seemingly complex" ultra-low-current measurement. If you look for it on-line, there's a Bob Pease EDN article where he explains how he measured

Well, it's an abstract concept, I guess it's better treated like one. Your only "idea" should be of the properties of this number, and some applications that suit your interests. I don't think I have

--- In TekScopes@..., Didier Juges <didier@...> wrote: "... Over here, this is the season where a little bit more heat in the shack is a good thing :-) The 494P is the second best shack

I have both a 492 and a 494P and both run quite hot (measured with my finger). I did not put a thermometer on it, but 56 degrees C sounds about right, I can lightly touch it but would not want to

The 8292A is a low power presettable decade counter that can be connected as a /2 or /5 counter. In the biquinary mode, it is a /5 followed by a /2, and produces a square wave. The outputs can be set