Hello all, For those who worked me last year as LX/PA6Z on 137kHz: We have not forgotten you! Marcel, PA9M, our QSL manager QSP-ed all cards to me personally, problem however is that I still have to
Hello all, After a long delay finally the LX/PA6Z QSL's are ready, and will be mailed/send by the buro tomorrow. Also all QSL's for 136kHz QSO's with PA4VHF will be send via the buro. Now I'am very b
Hello all, after 2 days of searching the internet and a lot of magazines here, I still haven't found any (simple) design for a powersupply in the 50-100V range. I want to run something with an fixed
Hello all, I am starting with an powersupply in order to have something to feed an amp. I have some nice transformers here, one of them being 50V/1000VA. To limit the current when switching on such a
Well, I managed to get a nice 12Vtt square wave on 137kHz + all harmonics, and used this to drive a single IRF530, just to see what happens. Had to use a resistor to crank down the current, as my pow
Hello, and once again thanks for the usefull info given by some of you. Johan for his references to other MOSFET drivers, Alan and recently James about the re-use of old line-ouput cores. Old compute
Hello , For those who didn't know...there is a community also working on frequencies around 136kHz............. I don't know how I found them, but must have been during one of my (google) searches ar
Well, despite first negative results I now seems to get some positive results......... Thanks to all here for the "physical support" , it keeps me involved......... For Mal, and others,...I just firs
Hello all, yeah, well, once being amateur, means mostly always an ham, hihi. and that means...............exact........I just can't give up............. so, had an closer look at the 'remains' sofar.
Hello all, Sorry to say but for the moment I decided to stop my building activeties for the 136kHz transmitter. Right from the start I faced only problems in getting things working, and I just do not
Hello all, As I haven't OM2TW's emailadress right now, I'll ask here. I found an pdf.drawing of the TDA2030 amplifier giving 5Watts or so on 136kHz. however, at hte output stage there are two coils L
Thanks to all who replied to my question. Sorry to see that these FET-drivers are not (yet) a widely available product. Marek's suggestion of using an ICL7667 isn't an bad idea at all. I know the per
Hello all, First of all thanks for answering my question; however I actually didn't meant direct interference on reception (radio/TV) but RFI. I mean the CW-signal on 136kHz detected in various audio
Hello, and thanks to all who called me last night on 160m operating PI4ZI. Had great fun with just 400Watt into an full-size delta loop. Excellent signals. pictures at : http://www.qsl.net/pi4zi/ Loo
Hello all, A bit off topic, but I just want to inform you that I will be the operator of PI4ZI on 160m during this weekends PACC contest. We will try to put up my full-size delta loop for 160m again.
Hello all, Well, I'm still there in the list and just want to inform you about the status of my 136kHz station project. Things are going very slowly. I have been busy dismanteling quite a large numbe
Although I am not QRV yet, I would certainly glad to see a kind of CW activety period somewhere during weekends or so. Another, different question, I wonder how situation is during summertime. Of cou
Hello all, I'm not an expert in all the special types of components around, so therefore some questions here. In several transmitter designs I found a skottky diode MBR150 in the gates of the FET's.
First of all congrats to Ed ans his group, as well as the ZL's for their wonderfull QSO! Reading Ed's message I was a bit surprised to see that they where running 100Watt 'only'. What interests me is
