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Ruby Question

Started by Life, February 01, 2009, 02:40:24 PM

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Life

So I had some parts laying around and decided to build a ruby but I'm not getting sound out. Going off the JRC 4558D's datasheet (http://pdf1.alldatasheet.com/datasheet-pdf/view/27325/TI/RC4558DBR.html) it shows 2in on leg 6 and 2out on leg 7. I've got 9v on both legs going by the schematic. On leg 8 I've got ~.2v but I followed the signal path into leg 2 and I have sound, but no output. Ideas? Its a really simple circuit.. 

frequencycentral

The Ruby uses a LM386 which is a low voltage power amplifier, not a JRC4558 which is a dual opamp.

http://www.biltek.tubitak.gov.tr/gelisim/elektronik/dosyalar/6/LM386.pdf

http://www.runoffgroove.com/ruby.html
http://www.frequencycentral.co.uk/

Questo è il fiore del partigiano morto per la libertà!

Life

Gotcha, that makes perfect sense!