Sorry if this is a bit off-topic, but I'm hoping someone here can help me. Is there anyone who knows for certain if there is an agreed International Standards Committee (ISO) or other agreed standard
Some may be interested that I've expanded my Arbitrary Transmission Line Calculator atlc http://atlc.sourceforge.net/ to include a program 'design_coupler' with the ability to automatically generate
You could try GNU/Linux, of which I'm not aware of any viruses existing, although since I don't use it myself, I'm certainly not sure of this. However, I know lots of people who do use it and none ha
PC clock stability is inherently poor - a lot of it due to the fact there are large temperature variations over time. I don't know what JT44 is, and hence what timing accuracy is required to use it.
I've no idea of the accuracy required here, so its impossible for me to comment, but if 200 ms is sufficient, then there should be no problem using NTP. Unlike the software you describe, there is no
I see so many posts here that are sent to someone who obviously reads the lists, perhaps CC'ed to someone else who reads the list, then CC'ed to the AMPS mailing list. Just sending to the list should
I see so many posts here that are sent to someone who obviously reads the lists, perhaps CC'ed to someone else who reads the list, then CC'ed to the AMPS mailing list. Just sending to the list should
Okay, its a bit ironic. I meant to send the email, realised there was an error just after hitting 'send' and thought I'd stopped it going, whereas in fact I had not. Hence I've sent two nearly identi
True, but it does not take a lot of effort to remove one. Most list I subscribe to have the 'From:' field set as the list name, rather than the individual sending it. When using newsgroups, which I p
No, at least on a continuous basis. The VA at 750 mA is 4620*0.75=3465 VA, which is a lot more than 1.1 kVA. The subject does say '3 PLATE transformers'. You might just manage if all 3 were used in p
With all the questions about transformers on here, I thought I'd add this and would be interested in comments. About 10 years ago, a friend was building a twin 4CX1000A amplifier. A company (which I
Could be, but at least a microwave oven transformer is capable of supplying some power - this thing was supplying virtually nothing. Had even the primary current been 3.15A @ 240 V, it would imply a
I'm sorry but someone has pointed out to me a couple of bugs in versions 3.0.2 and 3.0.3, which can cause them to crash. I've put version 3.0.4 up on sourceforge, which hopefully solves the problems.
I can't help you with data on those specific devices, but I would personally be wary of 1970's diodes that are 'quite substantial'. Some may recall the very public disagreement I had with a fellow ha
Ian has posted his new web address on here, but for anyone that did not get it, just go to www.iwftech.co.uk rather than the .com version. -- Dr. David Kirkby PhD, email: drkirkby@ntlworld.com web pa
Hi, If anyone is interested, I have the latest copy of my software for arbitrary transmission lines to Sourceforge. See http://atlc.sourceforge.net This allows one to find the characteristic impedanc
That sounds like very poor design. The meter is only 30 uA, so even to keep the meter at FSD, cells should last almost forever. The electronics to keep the peak must use very little power - a precisi
There was a design for a high voltage (~ 2 kV) SMPS in an old issue of QEX - the ARRL's technical journal. I don't know if it is possible to search (or perhaps even find the article online at the ARR
There is another connnector, called SHV, which is similar is size to MHV, but does have some advantages I believe. The problem is, I can't recall what those advantages are !!! It might be something t
There's an 8877 data sheet on my site at http://www.david-kirkby.co.uk Just follow the links to ham and tube data bits - it should be obvious. -- Dr. David Kirkby Ph.D, email: drkirkby@ntlworld.com f