Hi, I have one of the Courtiestown PIC pulsers that has worked flawlessly for a couple of years. .... until now that is! I'm having problems with the FET drive...
Rod, Yours was an early example and I cvan't honestly be sure of the specification of the 2N3904/ 3906 devices originally fitted. I do now use the 60V rated...
Sorry I haven't posted back on this forum sooner! To answer some questions: the 'amplitude' I was referring to was the pulser trimpot - as the coil audible...
Hi Rod. ... The trim pot is supposed to be set at build time and left alone. When you turn it you can operate the pulser WAY outside of it's specs. It is a...
Rick, I *have* been hammering the poor little transistor used in the FET driving circuit (base connected to the PIC), and yes this is the one that blew. I must...
Hi Rod. ... I was thinking the same thing. ... If you reset the pot and leave it alone it should not need an upgraded transistor. ... Let me say this. ...
Check out this new Engineering Calculator Tool Online at www.calculatoredge.com this website has several hundred online calculators which are free to use,...
... Mosfets might be rated 200 Ampere (Like the irf 1405) http://www.irf.com/product-info/datasheets/data/irf1405.pdf But as you can see at the end of page 2...
Hi All I've got Richard's Pic Pulser up and running, quick and easy to assemble! I'm still interested in building Rick's Pulser 05 with the battery condition...
Hi Charles. Â The V0.5 pulser looks cool, but was more of a test bed. Ultimatly, it is obsoleted by the low parts count model. Â Yahoo removed the zip file...
Where can I find an assembled unit for sale in the US That can be used on 6 and 12 volt batteries? I just found out about these an hour ago. And this group...
Hi Condeeg, that means that that other newbie Nigel Dawson is a moron, a dork without manners, at least without good manners. But a tip for you, before asking...
Hi condeeg I hope you find the info you require Bruno's comments are a good guide to forum chat. Read loads first and then ask sensible questions. I'm nut in...
nigel dawson is what is known as an internet troll..they live to shock people ...it is their only pitiable form of entertainment...try this link on ebay..i...
apparently the link that i previously sent doesnt work..you can try doing a search on ebay for wizbang...or go to the website http://www.wizbangplus.com/.......
Condeeg, I wanted to refine, if I may, part of Bruno's note to you about where to type your replies when you do reply. Because, this is more a matter of "good...
Hello and thankyou to this group. After nearly a year now of lurking around desulfator boards and postings I am about to receive (should God and the New...
Hello spartakplutonium   If you feel you must, you should use a constant current charger of about 300ma. A constant voltage charger is not a good idea as...
... about 300ma. A constant voltage charger is not a good idea as it will put out it's max current until the battery voltage rises, and if it doesn't rise...
The photo's for this post are under 'Graham's' in the photo section. The Courtiestown kit is very good, it arrived somewhat scantly packaged for a 12,000 mile...
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