diyAudio (
-   Solid State (
-   -   Power On. (

jleaman 23rd September 2003 04:33 AM

Power On.
Does any one out there have a power on power off schematic that will drive a simple relay.

i would like to get some thing that i can have one switch but do both functions

one press for power on and one press for power off.

to activate a relay to turn on the main part of the amplifier.

any one help..
Please i lost my old one and now i cant find it.

wrl 23rd September 2003 07:11 AM

Search for momentary switch.

jleaman 23rd September 2003 07:43 AM

2 Attachment(s)
What about the value of this part that is not identified?

what transistor should i use. ?

JOE DIRTŪ 23rd September 2003 07:52 AM

any small signal transistor such as a 2n4401 will do....basically the relay coil impedance determines the size (current capability)

li_gangyi 23rd September 2003 10:37 AM

Tell us what your relay coil's resistance will likely be...from there we can calculate the current draw and the transistor that best fits the job...I guess a TIP31 there will do for any relay..except for those REALLY BIG relays...

All times are GMT. The time now is 09:30 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 18.75%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio