R
reanimatorstudio
Guest
I have to rack some EQ modules, these pcb's will make the job easy and clean.
There are just all the options that you need for this purpose.
If you make your own 1 unit case I would suggest you put the the XLR's 3mm higher than the middle so the pcb's have a little bit more space.
You have 2 relais for true bypass. If there is no power the unit is in bypass.
grounding options:
you can put a resistor and a cap between output ground and gound of the unit. Something that will reduce humm problems in difficult situations like ground loops. There is a possibility to connect this output ground with the input ground by putting a drop of solder under the input connector (spot: ING).
relais:
You can put the relais in series or parallell. In the picture you see how to put them in series. I use 2 relais of 12V, my powersupply is 24 volt. If you would like to put them in parallell put a drop of solder on the 2 other spots.
output load:
If you are racking stuff (with an output transformer) there is a possibility to put a load resistor (RL) and/or a zobel network (RZ, CZ).
switch:
There is place for a resistor if you use a switch with LED.
connectors:
I recommand to mount the XLR's in the case before soldering them on the PCB. The distance between input and output XLR's is 60 mm, input on the left. It's a lot easier and you will not put tension on the solder points of the XLR's. The XLR's are mounted on the same side as the other components. Igor suggest to use Neutrik, I had an other brand and it fits nice too.
I mount the XLR's from the inside of the case so you can still take the pcb with the connectors out of the case.
For all other connections you can use connectors or just hard solder everything. You can solder them on both sides of the pcb, what is best for you. There are 2 power connections so you can distribute the power for the relais to the next bypass relais, ...
There are just all the options that you need for this purpose.
If you make your own 1 unit case I would suggest you put the the XLR's 3mm higher than the middle so the pcb's have a little bit more space.
You have 2 relais for true bypass. If there is no power the unit is in bypass.
grounding options:
you can put a resistor and a cap between output ground and gound of the unit. Something that will reduce humm problems in difficult situations like ground loops. There is a possibility to connect this output ground with the input ground by putting a drop of solder under the input connector (spot: ING).
relais:
You can put the relais in series or parallell. In the picture you see how to put them in series. I use 2 relais of 12V, my powersupply is 24 volt. If you would like to put them in parallell put a drop of solder on the 2 other spots.
output load:
If you are racking stuff (with an output transformer) there is a possibility to put a load resistor (RL) and/or a zobel network (RZ, CZ).
switch:
There is place for a resistor if you use a switch with LED.
connectors:
I recommand to mount the XLR's in the case before soldering them on the PCB. The distance between input and output XLR's is 60 mm, input on the left. It's a lot easier and you will not put tension on the solder points of the XLR's. The XLR's are mounted on the same side as the other components. Igor suggest to use Neutrik, I had an other brand and it fits nice too.
I mount the XLR's from the inside of the case so you can still take the pcb with the connectors out of the case.
For all other connections you can use connectors or just hard solder everything. You can solder them on both sides of the pcb, what is best for you. There are 2 power connections so you can distribute the power for the relais to the next bypass relais, ...
