Create an ultraviolet eraser in your own --- UV ERASER

As is well known, the EPROM chip needs to use ultraviolet light to remove the content, and if it is not a cost, an ultraviolet eraser is really difficult to find, in fact, the working principle of the ultraviolet eraser is not complicated, if you have certain Electronic foundation, it is not impossible to create an ultraviolet eraser. Below, we step by step by step to make an ultraviolet eraser. Look at the parts below, all parts required for the ultraviolet eraser, one of the ultraviolet tubes, one ballast, one launcher, two tube sockets, power cord and a little insulated wire, launcher The socket, the power switch is equal. What? Right, like the composition of ordinary fluorescent lamps, however, it is only using an ultraviolet lamp. The function of the ballast can not be too large, 5W can be left. The launcher is also supporting, with 5W, cannot use ordinary 20W or 40W, such a circuit will not start. The following is the circuit diagram of the production, is indeed a normal daylight circuit. I have been looking for a long time, I didn't find a suitable box. I had to find a wooden box for a wooden box. The volume is a bit big, I have to be. The following drawers are used to place the chip, to make a movable, can pull. Of course, you must have a handle on the drawer, otherwise how can you pull it? To the appropriate position of the panel, open a hole, fix the power switch, the power switch is selected, and the current is around 1A. In the rear of the wooden box, open a small hole, insert the power cord from the outside, after leaving the appropriate length, find a knot, to prevent excessive force in use, and pull out the power cord. According to the above circuit, the associated components are fixed in the box. First fix the starter, secure the enclosure of the starter in the top cover of the box and insert the launcher. Turn the socket at both ends of the lamp to fix the length of the tube, and load the lamp. Secure the ballast to the bottom of the box, follow the circuit diagram, connect the associated lines, and then check it out, it can be used. When using, first pull the drawer, put the chip that needs to be erased into, pay attention to the window of the chip to be opposite the lamp, because there is no timing device, you have to remember the time of erasing, generally 30 minutes to wipe Detached. The above circuit uses an ordinary ballast if you have an electronic ballast, or a waste-free sunlight, which can also be modified, the modification is very simple, convert the original lamp to an ultraviolet lamp. The tube can, but to note that the functionality must match, otherwise it will cause an accident. If you are interested, you can also install the timing device on the circuit, so that it will be more convenient. Warning: The above production must have a certain electronic foundation. If you don't have the special length of this, don't you experiment, otherwise the consequences pay!