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Question based on Delta 1 requirements.

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Question based on Delta 1 requirements.

Postby nenad_kostic » January 31st, 2020, 3:14 pm

Hello,

My name is Nenad, im new here on this site, and I need some help regarding Delta 1 relay based stereo attenuator.

To clarify this, I recently spent some time searching, and I would like to volume control based on Delta 1. Downside is that I am on really low budget, and for start up I thought on buying only most necessary parts.
Thought on starting with Delta 1 board(with all parts), The LCDuino-1(with all parts), power supply(both sigma22 regulated power supply and sigma25 power supply).
I made decision to cut(only for now) alpha 10 board, and delta 2 input selector because- as I have understood from reading manual these are not mandatory in order for delta 1 to work.

Also, beside the fact Im on low budget, I only use one analog audio input. Thats why I also do not feel any need for input selector.

I would like to hear from some experienced forum memeber, can I make Delta 1 work without delta 2 and aplha 10?
If it could(as I hope), it would mean a lot for my funds, and I could start project soon
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Re: Question based on Delta 1 requirements.

Postby amb » January 31st, 2020, 5:29 pm

δ2 and α10 are optional. δ2 adds input/output switching capability, α10 makes building the preamp clean and neat with minimal wiring.

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Re: Question based on Delta 1 requirements.

Postby nenad_kostic » February 1st, 2020, 5:00 am

Thanks!
This really helped a lot. I also assumed δ1 would work without δ2, but felt it would be smarter so hear thoughts of someone more experienced.
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