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Projects => Tech Help - Projects Page => Topic started by: MilkyWayAudio on April 27, 2016, 03:16:00 AM

Title: Polarity of 1uF caps in Green Bean
Post by: MilkyWayAudio on April 27, 2016, 03:16:00 AM
I only seem to have polarized 1uF caps, can someone show me how to determine the orientation for all 1uF caps needed to get a working pedal? Thanks,
Patrick
Title: Re: Polarity of 1uF caps in Green Bean
Post by: darrenw6000 on April 27, 2016, 05:54:18 AM
what are you building?

Title: Re: Polarity of 1uF caps in Green Bean
Post by: m-Kresol on April 27, 2016, 10:35:22 AM
the 1uF caps in the green bean are non polarized film caps rather than electrolytics. So you can put them either way.
If you need to use electrolytics, make C8 + side facing down (to pin 7 of the IC) and C10 + facing left (to R15). I'm not so sure about C2, but if I had to guess, I'd put in in with + side to Q1 (+ on the right).
Still, better to use film caps there.
Title: Re: Polarity of 1uF caps in Green Bean
Post by: Orbis_Ignis on April 27, 2016, 11:31:28 AM
Get some of these
http://www.taydaelectronics.com/capacitors/polyester-film-box-type-capacitors/1uf-100v-5-polyester-film-box-type-capacitor.html
Title: Re: Polarity of 1uF caps in Green Bean
Post by: midwayfair on April 27, 2016, 03:46:50 PM
Hook up the power supply and measure the voltage on both pins where the 1uF cap would go. Put the + side in the pad that shows the highest voltage.
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