T&L Publications

You know what would work best for putting the design on to copper clad PC board blank. A Pen Plotter. I know of this one person who has an industrial HP Plotter. He used it for his CAD-CAM drawings mainly. But, he could set it up to do copper clad PC boards as well. I haven't spoken to him in some t...

Well since were talking about LED Lights.

American Science & Surplus got in a bunch of these LED lamps.
http://www.sciplus.com/category.cfm/sub ... maxrows/11


Signed: Janitor Tzap

Robert Reed wrote:Jantrap

The 1N4001 ,I believe should be reversed

Oops!
I got stop trying to do three things at once.
I went back, and fixed the drawing.

Good catch there Robert.


Signed: Janitor Tzap

Heres a similar design too k7elp60.



The only thing that could give you trouble.
Is finding the 91K resistors.


Signed: Janitor Tzap

Have you guys figured out which Digital TV Converter Box has the best receiver and feature set yet? I got coupons burning a hole in my pocket! I've Been trying to find and RCA DTA 800B1 (not the 800, 800A or 800B). Walmart is supposed to have one flavor, but the two I went to last night only have M...

Janitor: I am surprised if you are still trying to make a living in the consumer electronics repair business. All of the repair shops around here went out of business years ago. Consumer electronics is disposable now and is not built with any effort to make it repairable. Yes, I know :( It's just f...

Ball Grid Arrays; are those like the PC board with the resistors and capacitors embedded into them? If it is..... No its the square IC package with an array of tiny solder balls on the bottom, usually hunderds of contacts and they have to be soldered in a reflow oven at precise temperatures or you ...

It is more technique than tools what takes to rework surface mount components, until you hit the wall with ball grid arrays, which take a $150K machine to replace them. Working under a microscope is not an exceptional activity. It is daily routine. Ball Grid Arrays; are those like the PC board with...

Now that the Electronics Industry is clearly going to Consumer Electronics that use all Surface Mount Devices. Repair of these items has become some what of a nightmare. I've spent far too many hours on just removing one component from a circuit board. And sometimes damaging the solder pads. When I ...

I thought I should pass this along since this site has a lot of helpful information.:smile: The "TV Fool". http://tvfool.com/ The web site will help you find out what stations are available in your area. What sort of signal strength, frequency, direction to aim your antenna, and more. :) S...

Just and update on the RCA DTA 800B Convert boxes. If you are still using DirecTv's Older RCA Satellite Receiver Boxes. You'll find that the remote control signals to operate the Receiver Box. Will also operate the Converter Box, and vise-versa. Thus, you press the ON/OFF button from either remote, ...

tried that one, but there is no tie to the telecommunications tools side.. Dracon was bought out years ago by the Harris Corp, so all of the tele. specialty tools became Harris Dracon.. I know who sells them, Graybar for one, but you'd think you could go to the manufacturer for support or manuals.....

frhrwa wrote:I can't find any web site for the telecommunications division of Harris Dracon.. any ideas.? I'm trying to find a manual, booklet, or info on the CITS-21 Model thanks..

Here you go.

www.harris.com
1-800-437-2266


Signed: Janitor Tzap

Oops, sorry... I meant too say "CANON" was making the main laser printer engines for Lexmark, and HP Laser Printers. I've checked around also for the PC90105FN. But have come with zilch for a data sheet. Are you trying to repair this printer? Or are simply wanting the data sheet. To see if...

Hello, I have had a problem finding a data sheet for the ic chip part number PC90105FN. It's in a 44 pin PLCC. I think it is a dual stepper motor driver (drives 2 motors). I looked quite a bit but only seem to come up with sales for this part and cant even confirm that it is a stepper driver. Thank...