Photo transistors can be purchased at Radio Shack and Best Buy. Someone can also buy them online at Amazon, Newark/Element 14, and Mouser Electronics.
Photo transistor always work with solar power
Photo transistor always work with solar power
yes
One may purchase a PNP transistor from a local electronics hobby shop or a chain such as Radio Shack. The website "Mouser" also has transistors and downloadable data sheets for them.
connect the base of the transistor to a variable resistor and to a normal resistor
connect the base of the transistor to a variable resistor and to a normal resistor
There are a number of places where one can purchase 12x12 photo paper. These include Staples, Amazon, the auction website eBay, Photo Paper Direct, Viking Direct and BH Photo Video.
One can purchase photo mailers from Amazon where one can buy a pack of 100 for $19.95. One can also buy them from Staples, Office Depot and OfficeMax.
photo diode donot work for long distance photo diode act as a receiver
One can purchase a glass photo frame from any local department store. Alternatively, one can purchase it on some online stores like Amazon, Macy's and eBay.
One can purchase a small photo printer at Office Max, Staples, Office Depot, Walmart, Kmart, Target and Best Buy. One can also purchase small photo printers online at Web Crawler, Amazon and Bizrate.
One can purchase photo inkjet printers online from sites such as eBay, Amazon, and other sites like BestBuy. One can also purchase inkjet printers locally in shops.