Need yea or nea on input switch

[davidlzimmer]

Any problem with using this switch
for an input selector?

Thanks,
David

[Nordic]

I have used worse...

[Leolabs]

Originally posted by davidlzimmer
Any problem with using this switch
for an input selector?

Thanks,
David

It's a shorting.Why not go for non-shorting???

[Nordic]

I think thechnicaly speaking, make before brake is in fact the right option...

[Nordic]

wait, I'm wrong... too early in the morning it seems.. make before break is for attenuators...

[lineup]

Originally posted by Nordic
I think thechnicaly speaking, make before brake is in fact the right option...

this is true for most audio switching or steeped switches for volume
make before break

Because if is a resistor that keeps down impedance on the other side of switch
this resistor can be important.

The lack of a bias resistor at input terminal, for example
can make amplifier go really crazy,
if so only for a short moment.

Can make blips sounds.

[v-bro]

Ladder type attenuators need break before make (otherwise the resistors can be paralelled for a moment resulting in higher volume (blips) between steps.

Series type attenuators need make before break type switches, otherwise the resistance parallel to the input of the poweramp will be broken off between steps.

Input switches need break before make on the positive wire in order to keep the blips out. The bias resitor should be placed on the output of the switch (input of amp), which is allready the case in most amps...

[davidlzimmer]

Good Morning all. I guess by the sum of the responces, the switch will at least suffice. Any suggestions welcome.

Thanks

[davidlzimmer]

Ooops! Now I'm confused. Do I need "make before break" or "break before make"???

The amp is a Peter Daniel LM4780 parallel stereo.


Thanks.

[v-bro]

Break before make, otherwise there's a moment where sources (for example cd-player and tuner) are parallelled inbetween switching.

The only crucial thing is that ground stays connected between source and amp....