why burn extra energy in relays??? they always ON ! here using something like : (see attachments) it's just mine is MIL-RECYCLED, (air-wound properly angled) hope pictures say complete story :D On 09/02/2014, Ashhar Farhan <farhanbox@xxxxxxxxx> wrote: > here's another idea: > > use a CD4017. the 4017 has upto ten outputs. only one goes high at a time. > as you pulse the clock input, the high moves to the next pin. > so, what you do is this : > 1. Use one pin to reset the CD4017 (the high moves to the pin'0'). > 2. generate low to high pulses to move the high output to the desired band. > > as the CD4017 outputs a high, you can use this to drive a 2N7000 to switch > the relays. the 2N7000 has built-in diode to prevent the flyback surge. > > - f > -- -- Please encourage recycling, reuse or repairing of E-waste. ░7░3░ ░d░e░ ░V░U░3░S░X░T░
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