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HELP! substitutes needed
I'm working on a 915MHz mixer design, and just run into a challenge of unavailability of these components
1.Varactor diode BB131 (philips)
2.Feedback amplifier transistor AT-41486 (agilent)
3.Schottky diode BAT15-04W
4.RF transformer JTX-2-10T
pls I need suggestions...
915 MHz MIXER
Pls I have this project to work on and I don't have a circuit diagram to implement it. Pls I need help cos time is running out. I have rather broken it down to its constituent block diagram
1. Local Oscillator to generate the carrier
2. A frequency multiplier in case I cannot get...
gsm wireless led display tutorials
I'm working on a scrolling LED display using 5X7 dotmatrix. I'm inplementing on PIC18F series and looking for a means of updating without wires. wireless or infrared using RS232 port. Please I need help.