todays haul

[Yorkie]

Thanks for responses.

David,
Re:Mike Rowe - he has been taken aback by the level of responses for his valve tester and it was great to see the first model working in the 'flesh' so to speak. I didn't realise that he has written a number of articles for practical wireless until he told me yesterday.

I did speak to him about this forum because it would great to have someone of his knowledge and experience as one of our potential advisors.

I for one would be very interested in building his design frequency counter (when i do finish my tester!!!!) so it will be good to have this as a homebrew project.

Regards

Rob

Unfortunately the prescaler IC for that PW 'Robin' counter is long since obsolete, and time has moved on. Most homebrew counters these days are PIC based rather than using a string of ICs. For example, the one at this link, which goes up to 50MHz:

http://homepage.eircom.net/~ei9gq/counter.html

(It can go higher in frequency if a prescaler is built).

However, quite frankly, unless you have an abiding interest in homebrew, rather than simply wanting a frequency counter, there are many commercial ones available for under £50 new, so it makes little economic sense to build one.

At the time that I built Mike's 1 GHz counter I was an active radio amateur, (As was Mike, G8JVE), so the counter was useful at VHF/UHF, but I've since completely lost interest in amateur radio as IMHO, it's just become posh CB.

David