Search found 8 matches

by telcotech
Sun Aug 14, 2005 5:08 am
Forum: General Discussion
Topic: Ethernet webcam .....
Replies: 5
Views: 1107

Re: Ethernet webcam .....

Thank you, exactly wnhat I was looking for.
by telcotech
Thu Aug 11, 2005 5:09 pm
Forum: General Discussion
Topic: Ethernet webcam .....
Replies: 5
Views: 1107

Ethernet webcam .....

Anyone know of an adapter to connect a USB webcam to ethernet?<p>I see IP cameras and ethernet cams, so an ethernet interface to a camera is possible. What I was thinking was a project that would allow an ethernet connection to a USB device. I see USB ethernet devices that connect ethernet to a comp...
by telcotech
Mon Feb 14, 2005 5:52 pm
Forum: General Discussion
Topic: Resistance meter question?
Replies: 6
Views: 1452

Re: Resistance meter question?

2 digits were sufficient, you could map 99 cables, I guess if it was 3 digits, it might come in handy at some time though.
by telcotech
Mon Feb 14, 2005 5:50 pm
Forum: General Discussion
Topic: Resistance meter question?
Replies: 6
Views: 1452

Re: Resistance meter question?

The wiremapper works like this:<p>You take resistors starting with 10k, using rj11 plugs, you crimp the resistor across pins 4 and 5.<p>Take a straw, cut it into 1/2" to 3/4" pieces, put a piece over the resistor, fill the straw up with epoxy. This seals the resistor and bonds the straw to the resis...
by telcotech
Thu Feb 10, 2005 6:58 pm
Forum: General Discussion
Topic: Resistance meter question?
Replies: 6
Views: 1452

Resistance meter question?

Hello,<p>I am in need of a schematic for a 2 digit 7-segment LED digital resistance meter....<p>I had a simple home-made wire mapper, it used rj11 plugs with resistors from 10k to 200k connected between pins 4 and 5, which read as 1 - 20 on the meter, the meter was housed in a small plastic project ...
by telcotech
Sat Dec 04, 2004 1:42 pm
Forum: General Discussion
Topic: 28 VDC AC/DC Adaptor
Replies: 8
Views: 1398

Re: 28 VDC AC/DC Adaptor

Thanks for the replies, Inoticed that Jameco offers supplies from Reliapro, which have the same part number format to the supply I need, I emailed them and hope they may be able to get the exact replacement, if not, I think I will try a 24 or 30 vdc supply.<p>Thanks
by telcotech
Fri Dec 03, 2004 9:32 pm
Forum: General Discussion
Topic: 28 VDC AC/DC Adaptor
Replies: 8
Views: 1398

Re: 28 VDC AC/DC Adaptor

Thanks for the input, I checked a working power supply, it output 35 VDC with no load. I would assume it is not regulated, so, would you suggest using a 28 VOLT 1.5 AMP POWER TRANSFORMER CAT# TX-2815 from All Electronics with a bridge and filter cap?<p>Also, what size filter cap should I use?<p>Thanks
by telcotech
Fri Dec 03, 2004 3:59 am
Forum: General Discussion
Topic: 28 VDC AC/DC Adaptor
Replies: 8
Views: 1398

28 VDC AC/DC Adaptor

Hi,<p>I have a telephone system that requires a 28VDC 600mA wallwart. VoiceLogic Voice Pro System.<p>An original adaptor that came with these units had these markings on it:<p>Class 2 Transformer Model No: DDU280060 Input: 120 VAC 24W Output: 28VDC 600mA<p>I can't seem to find a replacement, I would...