Posts Tagged ‘gqrp’
M328 LCR-T4 an updated version of M328 LCR Transistor tester.
January 16th, 2018 | 
Author: I wrote about the original M328 Chinese kit sometime ago, which I had to build to prove to myself that VK3YE's capacitance offset error problem was a calibration error:
http://g1kqh.blogspot.co.uk/2015/02/building-m328-component-tester-1.html
http://g1kqh.blogspot.co.uk/2015/02/building-m328-component-tester-2.html
However there is now a newer pre built SMD version (M328 LCR-T4) which came into my hands recently, all that you have to do is kit it together with a prebuilt case and a 9V battery NO SOLDERING: (Cost less than £8 inc case inc delivery).
This version has the advantage of being ready built with ZIF skt, and supports a better LCD full sized display!
I like this for it's ability to identify "any" transistor, or diode, you seem to throw at it. Displaying the gain figures of, and whatever way around the device is plugged into the ZIF socket, it has the ability to identify the pin out configuration, and if it is PNP or NPN, or even a FET. so you do not have to keep getting the semiconductor book out or downloading the data sheet for the pin data.
I thought this version was so good! I got G4WIF of the GQRP club recently to include it into the new Tribal Knowledge - Test Equipment document here
GQRP Club
Many times before I have said that SPRAT is the last magazine I would give up if I had to. GQRP Club membership is very reasonable indeed and I highly commend it to you. They now sell a DVD which has the first 160 copies of SPRAT on it. If you join the club, the DVD is very inexpensive plus you get the next 4 SPRATs with the subscription. SPRAT is always filled with good stuff and always plenty of projects to build.
Go on, join!
ARRL propagation forecasts
For those of you who subscribe to the ARRL (not everyone does and I have no plans to renew my subs next year), the weekly propagation forecasts make interesting reading. Even more interesting are the archived old forecasts, so we can see just how good conditions are compared, for example, with the same time in 2007. As I mentioned before, if you are not an ARRL member you will not be able to follow the link, I believe.
ARRL members see http://www.arrl.org/w1aw-bulletins-archive/ARLP054/2007 .
Why am I not renewing my digital subscription with ARRL?
Earlier in the year I could not use my password and it took a week to sort it out. The online help was no help at all. It took several emails before anyone actually helped me. Most of QST seems to be ads similar to those in UK magazines. I cannot see the value in continuing ARRL membership. In summary, the ARRL seemed a pretty useless organisation. I was NOT impressed.
GQRP Club membership is much better value in my view.
