Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the beam group. File : /Jo...
beam@yahoogroups.com
Apr 1, 2007 1:16 pm
55390
Hmmm. If the left side fires, there is still a path for the solar cell current via the other diode and the right motor to the left-hand-side transistors, which...
Hello hello, This question is directed mostly towards Wilf, Dave, Wolfgang, or possibly our Friendly Hogfather but if anyone else has any info please indulge...
I hope your being sarcastic, as the Hextile Sheet and Hextiles were sent to me by Mark W. Tilden himself as the return address on the envelope (he shipped them...
Doh, can it be redone without the use of 1381's? :) I haven't got my shipment of them yet. They are on backorder for the next three weeks since Panasonic has...
FYI. I have tried that stuff and it is ok for wires that will not moved at all but it's ability to provide a glue like bond is limited. I wouldn't be using...
No problem with that circuit Jo. If either side fires, the transistor pulls the solar cell (+) through the diode to ground and stops all charging until the...
While I continue to enjoy my technical work and still relax by dabbling in robotics, I now try to spend more time enjoying family life. During the last two...
hi.Jo. Ok, first.Thanks for the help. The diodes I will connect to the motor and the 2.2k resistors, will 1N914 work? (thats what i have) Let me see if I get...
Thanks for all the help Wilf. Its lovely to see some behind the scenes of Wilf, suddenly your messages on the list have a voice to go with them! Looks like...
... That's too bad, I had hoped it was. YFH, though your intentions are surely good, please note that Kyle (krader356) has mentioned that Tilden gave him these...
Hi All just wanted to announce April's Buildfest will be Saturday the 14th at the Bug'n'Bots Store. It will be starting at 10:00 am. If anyone wants more info...
New to BEAM and group, I've freeformed several of the 74AC240 pummers (e.g. dual LED pummer, high efficiency pummer, Hex pummer) and they all run fine off 3V...
Thanks for the confirmation, Wilf. After a cup of tea and some chocolate (and a good night's sleep!) I realised I may have been Worrying Unnecessarily. The...
No worries, mate. You're more than welcome. 1N914 should work fine. I imagine that any small diode will do the job. The circuit will still fire when the...
Thanks for the peek, Wilf. I'm on dial-up, so couldn't see all the video, but I caught the start. What a fine bunch of kids - you must be very proud of them. ...
Thanks for the look into your family life, it certainly was a pleasant change. The trip actually looked like a great family bonding experience. I certainly...
Guys, finaly, my Micropower SE works! Yahoo... but got some questions with regard to this. How does one increases the triggering voltage? The original design I...
... job. ... at ... by ... Bullseye! your were dead on. In full sun light the Vom only hit about .7v. (i have the kind with the needle so it's cind of hard to ...
Not asking for to much then! lol The burst time will be increased as you increase your storage (more or bigger caps) if you are going for more caps then add...
"The voltage should be stuck at about 0.7V, being the drop across the base/emitter of the NPN." I wasn't exactly accurate there. There is also a drop across...
It doesn't matter about the 1381's. The SE could use whatever method you choose to trigger the latching NPN/PNP combination. The point of Wilf's EZSE is to cut...
Check out the new uPSE circuit in the file section. It uses a similar timing cap technique as the bootstrapped 1381 in a Miller SE. The output stage is...
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