Author Topic: momentary dpdt to latching (millenium?) true bypass switch  (Read 108 times)

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Renegadrian

momentary dpdt to latching (millenium?) true bypass switch
« on: November 29, 2016, 01:53:36 AM »
I bought some momentary dpdts in error, no way to send back (or, yes I could but I would pay almost the same value for the shipping) - hope to find a good use for them and tried to read something already but it's a new story to me - someone so keen to guide me in trasforming a momentary dpdt in a latching type, maybe millenium so I can haz a regular on/off led?!

I read something about cmos or better 555 to be used in the process...
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Phoenix

Re: momentary dpdt to latching (millenium?) true bypass switch
« Reply #1 on: November 29, 2016, 02:22:06 AM »
Check out Jfet switching by RG. If you want true bypass, you could use it to control a relay.
« Last Edit: November 29, 2016, 04:42:35 AM by Phoenix »

Groovenut

Re: momentary dpdt to latching (millenium?) true bypass switch
« Reply #2 on: November 29, 2016, 04:30:00 AM »
No way to transform physically without spending way more time and money than you have already invested.

You could try getting some standard relays and using this circuit to actuate them.



If the startup state isn't critical, you can elimnate the 10k, 10uF and 1n914 to the left.

I've used a variation of this circuit many times with success.

For LED you can place one in parallel with the relay (load). Make sure to use a current limiting resistor in series with the LED.
« Last Edit: November 30, 2016, 04:38:04 AM by Groovenut »
You've got to love obsolete technology.....
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