heisthl wrote:I don't know what you're doing wrong but I've sucessfully powered 3 relays without a doubler or a regulator off of the 5V taps with series'd LEDs. The relays I used were mouser 5V 655-V23105A5401A201 and the parallel resistor was 120 ohms across each LED. The PS schematic I used is:
Heisthl, I think I read where you once converted a carvin x60 amp to a dumble. That is the pedal from that same amp that I'm using. Do you remember trying that?
glasman wrote:I am curious on this one. Do the relay even chatter or nothing at all.
As Tele_player stated, you whould be able to enegize them by grounding the switch side of the relay.
Is there any chance that the back diodes across the relays are installed backwards? The banded end should be on the +5 volt side.
edit: odds are if they are installed backwards (forward biased) the LED would blow.
Gary
The relays don't even chatter. If I short the LED it switches as you would expect. I'll try the extra diodes in the regulator tomorrow. Hopefully that will work. Do I still need to use the voltage doubler if I'm using the 6.3v winding?
I was under the impression that you can't use the filament supply.It has a ground reference through the centre tap and will blow a diode in the doubler of the pedal supply.
I tried using the 6.3v supply with a regulator and it fried the diode twice.I pulled the regulator out and hooked up the 5v supply and it works perfectly.
I tried the 6.3v winding without any problems but it didn't work with the footswitch. I'm going to switch back to the 5v winding and send it through a voltage doubler, raise the voltage out per Glasman's method and give it a try. I'm just waiting on some parts. Didn't have any suitable caps lying around.
