I've been looking and looking, but i can't seem to find the circuit for a laser tag "Sniper Rifle". I want to be able to have a one-shot,reload rifle, capable...
216
Himanshu Sharma
hs_ramdev@...
Aug 29, 2001 2:12 pm
Hi , Before you think what frequencies to use for the A/V connection try to get the list of what frequencies are available for free... In any case a VHF would...
217
Himanshu Sharma
hs_ramdev@...
Aug 29, 2001 2:14 pm
... The only reason for the closed loop mode was the band-width that you get(increased...)and the impedence... If you wish you can choose the non-inverting...
218
. .
dnixon9@...
Aug 29, 2001 2:22 pm
Thank you. This was the help I was looking for. This is how my power supply circuit looks so far... A 25V/2A transformer is rectified through four 1N5404s and...
219
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dnixon9@...
Aug 29, 2001 2:24 pm
A half-mile isn't much, but being the fascist organization that it is, the FCC won't allow it. Without applying for a license I believe you're limited to 100...
220
Jim Thibeault (Tebo)
JIMT.KF4NBG@...
Aug 29, 2001 3:27 pm
I need help again, I have a Hewlett Packard 722 C printer and there is a diode molded into the cord that goes from the power supply to the printer. The diode...
221
ethanzer0@...
Aug 29, 2001 9:31 pm
Hello, I'm new to the group and am currently working on building an analog synthesizer. I have some good circuit designs and decent plans for execution. My...
222
dwb4926@...
Aug 29, 2001 11:35 pm
Hello Group , I build scale r/c boats and I want to build my own 12 motor speed controller to hook up to my receiver which requires a 3 wire hook up at the...
223
Larry Hendry
hendrysr@...
Aug 30, 2001 12:09 am
... __________________________________________________ Do You Yahoo!? Get email alerts & NEW webcam video instant messaging with Yahoo! Messenger ...
224
Larry Hendry
hendrysr@...
Aug 30, 2001 12:18 am
I'll try this again with an actual answer this time. :) ... Since you are dealing with brightness caused by LED clusters, what about making your cluster (your...
225
Larry Hendry
hendrysr@...
Aug 30, 2001 12:36 am
... I would be somewhat concerned about using a 5V regulator from a source voltage so high. Jon makes a very good point (below) about the heat that will be ...
226
Jayson Woodruff
woodrufj@...
Aug 30, 2001 12:52 am
I've attached a circuit outline. I'm trying to get a schematic so that Load 1 is turned off when the switching power supply (and in turn Load 2) is turned on....
227
Jayson
woodrufj@...
Aug 30, 2001 1:15 am
Well I'm doing something similar. I've planed out to have the "A" lit with normal leds, while cluster "B" is super bright leds. Now i'm trying to think of a...
228
Jonathan Luthje
jluthje@...
Aug 30, 2001 2:01 am
Jayson, A "real" brake light (at least in this country) leaves the parking / tail lights on simultaineously with the brake light, so the easiest way out of it...
229
Jonathan Luthje
jluthje@...
Aug 30, 2001 2:08 am
Ethan, Eagle is not a bad product, especially if you are not doing anything complex. I prefer Protel layout software, but it is quite expensive just for ...
230
dnixon9@...
Aug 30, 2001 2:27 am
What if I created a voltage divider at the power rails and ran the 5V regulator off a 9V tap? And if so, would I use low or high ohm resistors to create the ...
231
Jonathan Luthje
jluthje@...
Aug 30, 2001 2:44 am
Jim, I would double check the device in the cord - if it got so hot that it melted, it may be a fusible resistor or a thermal fuse, designed to prevent fires...
232
Darren Reid
shokwave@...
Aug 30, 2001 3:23 am
From: <ethanzer0@...> ... Eagle is very good. If you are using the demo version, there exists a library for it that adds full spice simulation. -Darren ...
233
Jonathan Luthje
jluthje@...
Aug 30, 2001 3:41 am
Mike, Let's assume that from your 25VA transformer you are producing an unregulated output voltage of 28 volts (quite reasonable), and lets say that you need...
234
Darren Reid
shokwave@...
Aug 30, 2001 3:44 am
From: <dwb4926@...> ... I bet that it would take only a very minor change to make that circuit work for the full 12V range. It may not require *any*...
235
Jonathan Luthje
jluthje@...
Aug 30, 2001 3:47 am
Darle, I would be tempted to have a look at the plan for the 6V controller first up, it should be easily modified to suit 12, or even 24V, by changing a few...
236
Tavys Ashcroft
bigtex@...
Aug 30, 2001 7:04 am
... Yeah. Something like this: http://www.nomad.ee/micros/pwm555.html -Tavys...
237
Jim Thibeault (Tebo)
JIMT.KF4NBG@...
Aug 30, 2001 11:53 am
Hi Jon, I carefully pealed the rubber off the device and it fell apart as if the heat caused it to crack, I don't know what the material was but it looked like...
238
ethanzer0@...
Aug 30, 2001 3:49 pm
... Thanks everyone for the feedback :-) Ethan...
239
Jonathan Luthje
jluthje@...
Aug 31, 2001 4:42 am
G'day Jim, The "thingie" that you describe sounds like an RF ferrite choke - found on some proprietry equipment ... beats me why it would melt though ... ...
240
Jim Thibeault (Tebo)
JIMT.KF4NBG@...
Aug 31, 2001 11:32 am
Hi Jon: It looks like a ferrite choke to me as well, although I talked to two different tech's from HP and one told me that it was a diode, and the other said...
241
d nixon
dnixon9@...
Aug 31, 2001 3:44 pm
Yes, I'm interested. -Mike ... _________________________________________________________________ Get your FREE download of MSN Explorer at...
242
d nixon
dnixon9@...
Aug 31, 2001 3:55 pm
Why is it that wall transformers don't output the stated voltage? Seems to me this does nothing but cause confusion. How do I know what rating to buy? For a...
243
Jayson
woodrufj@...
Aug 31, 2001 10:42 pm
Did you buy some sort of battery charger? Typically a 14V charger will put out about 18-19V. Sounds like you need more of a power supply than just a AC/DC ...
244
Keith Messent
rkmessent@...
Aug 31, 2001 11:50 pm
Is that 19V on open circuit? If so, you might find that, under load, it drops to 14V or so. There may be a further drop at the end of the lead, depending how...
