I've seen the Wacom Bamboo down to around $50 for some 4x6 models, excellent deal! Larger ones are nicer though, I don't often use more than 4x6 on mine, but it makes a nice hand rest.Sometimes I think I should have asked for a drawing tablet instead of a 27" monitor for Christmas but I'll buy one some day so I don't have to fire up my design software just to produce a simple schematic.
I honestly don't have the time nor the test components sitting around, just play with that first circuit until you find some values that net you approximately the proper frequency. I doubt you'll be able to make it accurate but you may be able to get close.marshal can u redesign my ckt with and without introducing IC
What is the intended load for this?i want an IC free circuit
I don't understand why people want to build a 100W inverter, since a 100W inverter is a 3"x3"x1" box on the end of a car lighter plug for $25 or so. That includes a bonus 5V USB jack as well. They don't even get warm, let alone "hot" when charging a couple notebooks.I've seen inverter circuits like these put out 100W using 2N3055 transistors on heat sinks but the output wasn't much good for driving anything other than a light bulb.
Sadly it's usually someone in a developing nation with unreliable power looking to keep the electricity running. Hopes eternal that a functional UPS can be had with a couple of random transistors an old clock radio transformer and a half dead car battery. A cheap $25 inverter (almost always the OPs mean UPS but whatever) is a month or two wages so the quest continues forever.I don't understand why people want to build a 100W inverter, since a 100W inverter is a 3"x3"x1" box on the end of a car lighter plug for $25 or so.
by Jake Hertz
by Jake Hertz
by Jake Hertz
by Jake Hertz