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Hey guys I started a build that uses the simple relay circuit from the Jim Kelly project in TUT 5 and need some help. I haven't done any relay switching before so my problem is not leaping out at me.
The pre-amp I'm using different than the Jim Kelly but the concept of how I wanted to switch the channels is the same. My problem is the when I switch channels the relays I'm using are make no connection at all when the panel channel switch is in the open position. When it is closed and grounding the relays go the Normally Closed position.
I'm using the Hammond 272JX and using the 5V taps with the same power supply circuit as the Kelly project. I'm using this 12V relay: http://www.futurlec.com/Relays/DS2Y-S-DC12V.shtml
With the panel switch closed I'm getting ~12 VDC on the positive terminal on the coil and 0 VDC on the negative terminal. With the panel switch open I'm getting ~13.5 VDC on both the terminals.
Any ideas? Thanks!
The pre-amp I'm using different than the Jim Kelly but the concept of how I wanted to switch the channels is the same. My problem is the when I switch channels the relays I'm using are make no connection at all when the panel channel switch is in the open position. When it is closed and grounding the relays go the Normally Closed position.
I'm using the Hammond 272JX and using the 5V taps with the same power supply circuit as the Kelly project. I'm using this 12V relay: http://www.futurlec.com/Relays/DS2Y-S-DC12V.shtml
With the panel switch closed I'm getting ~12 VDC on the positive terminal on the coil and 0 VDC on the negative terminal. With the panel switch open I'm getting ~13.5 VDC on both the terminals.
Any ideas? Thanks!
