I am not the one buying the parts.
A boy scout, a junior in high school using his Christmas money so cost is a concern.
He has purchased a 25w stereo amp for $30. his speakers are only 30w.
the parts count in my project manager at mouser is already up to $50 plus the polysterene capacitors from Welborne Labs then some ics from Digikey or Jameco.
this project is getting expensive for a young person.
If I was footing the bill I would buy all 1% parts, matched and high end chips.
Still need to design a vu meter for 10 frequencies.
looking at using a LM3915 in conjuction with an Allergo A6279EA-T
the circuit
https://www.electro-tech-online.com/attachments/audio-spectrum-analyzer-en-pdf.15065/
is kinda what I am looking for but it uses transistors. The Allergo chip might do a better job. Just need to figure out how to build it.
Any thoughts?
It was suggested to use 10 LM3915's but that could get to be expensive.
I have ordered the Allergo chip (6 samples for FREE).
If it dosn't work then the chips will end up on my LEDTRICKS Christmas light display.