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NEW Remote Volume Controller- 10 SETs

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Is there any option for latching relays?

Hi Lu

Latching type relays (e.g. OMRON G6AK-234P-XX-XX XXVDC with double coils for SET and RESET respectively) have two advantages compared to common type relays.
First, there is no need for continuous supply of SET coil to keep the contacts closed. A momentary pulse of 5msec it is enough to activate the internal latching mechanism to keep the contacts closed. The same for RESET. That means (be it so little) no electromagnetic infection of input signal. In many Hi-End preamplifiers (like Pass Labs X0.2) is used this method.
Second, power saving.
The main drawback is found in data lines, which must be double in number due to separate lines for SET and RESET coils.
Your kit it looks very nice with the included display! And in very reasonable price.
I have one more question. Which transmission protocol are you using for the remote control? In Europe it is very common the RC5 protocol of Philips. So, we can obtain from the market a big variety of remote controls in which included small types with just 6 buttons.

Thanks in advance for any information
Fotios
 
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Hi guys
Does anyone know what kind of relay I can use with "pc-out" (power control) connector? voltage? coil current? standard or latching?
Thanks, RD

Hi kierownik, the funtion of PC-OUT from the controller board is:
1. After you turn the power up, the KIT works, the PC-OUT will turn to low-voltage. with a PNP TRANSISOTR and a RELAY, you can control your main transformer in you AMPLIFIRE.

2.Once you make the " powre down " funtion works, the voltage will turn high in PC-OUT
 
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