Recent content by The Master1

  1. The Master1

    new here, any help guys? car horn question

    Hi Gallo 59, There is a very simple and economical way to make these sounds that you want, and even more if needed. Use an NE-555 chip and a 4017 counter chip, when the horn "button" is pressed, the NE-555 would pulse (determined by R x C) and that in turn would initiate a count pulse into the...
  2. The Master1

    Any Clue what this is?

    A quick look on Google for SBL 3045-PT led me to Digikey. http://www.digikey.com/product-detail/en/SBL3045PT/SBL3045PT-ND/1935315 It is a SCHOTTKY Diode 45V 30A TO3P pkg (dual diode) classed as obsolete. A replacement was suggested as a SBL3030 PT . Cheers, Jeff aka, The Master ==============
  3. The Master1

    Panasonic SA-HT530-GCP/ SB-HT530-GCP service and owners manuals

    Hi Guys,  I have been able to find the following Panasonic manuals which may also be of interest to some of the members Panasonic  DVD Home DVD Home Theater Sound System  for SA-HT530-GCP Service manual and  for SB-HT530-GCP service and owners manuals (1)  SA-HT530-GCP_Service_Manual.pdf   ...
  4. The Master1

    help with home alarm system :o

    Hi, I used to design security systems for several major alarm companies in Sydney, Australia from 1976-1982, so I suggest  you may wish to look at sample & hold type detection.    The I.C.s I used then are very much used today, only less expensive. That is to say, once a "sensor" a reed...
  5. The Master1

    Brightest LEDs on the planet?

    Hi Folks,  hope this info is useful to someone. I was searching for a similar item when I came across this LED unit.   It looks quite impressive however, it shows the LED's output in Candle power. I'm contemplating adding two of these babys as driving lights..... low current high power, as used...
  6. The Master1

    Final year project

    Hi Hazel Anne M,  Having had quite a lot to do with "piezo" devices, it would seem at best all that you may derive from a single Piezo device is about 0.5 Volts, which in broad terms , is not really useful for much except being a sensor.  Around 1973,  I was involved in a special "secret"...
  7. The Master1

    Webcam

    Hi Folks, Has anyone ever used a USB Webcam to provide a CVBS video output. As an idea, this would make a very cheap security monitor as most TVs have a Video IN ports. Resolution is reasonable considering.  Audio is not necessary. Having pulled a ROCK-2  Rock 1.3-Megapixel Web Cam P&P...
  8. The Master1

    componant sources

    Hi Mr Plumber, How many of what parts do you require, there is very little info on what you want,  where you are and where you want a delivery to. We sell many many electronic parts here, buy one, buy 1000's Visa. Mastercard. Amex. Diners Card Min card order AUD$20 excluding freight. All cards...
  9. The Master1

    Need Help Buiding the project using lm386

    22E is the alternative reference of 22 ohms. Lots of circuits refer to values such as 2E2 = 2.2 ohms, 680E = 680 ohms, 1E5 = 1.5 ohms,  330E = 330 ohms and so on . I am sure this arises from the missing "omega" (ohm) font in most computers. Hope that clears that up for you, :-) Cheers, Jeff
  10. The Master1

    intergrated circuit information chart

    Hi Folks, we have a data section devoted to CMOS 4000 - 4049, 4050 - 4099 then the TTL range, 5400, 7400, 74LS00 - 7448 series (so far) see them here ....  http://www.unitechelectronics.com/datasheets.htm cheers, Jeff
  11. The Master1

    Neutral , ground & earth

See more
Top