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Title: Zener Diode in Yellow Shark
Post by: grodada on September 26, 2011, 01:19:15 PM

Hi,

I am about to order the parts necessary to put together a Yellow Shark. I have some doubt about the Zener diode. How many watts is it supposed to be? I can't find the info on the pdf file.

Best,

G.

Title: Re: Zener Diode in Yellow Shark
Post by: plesur on September 26, 2011, 01:42:42 PM

A 1N4733A should be OK, it's a 1W 5.1V zener

Title: Re: Zener Diode in Yellow Shark
Post by: oldhousescott on September 26, 2011, 01:45:14 PM

There's probably not more than 2mA current through the zener. At 5.1v drop, that's about one-hundredth of a watt of power being dissipated (P = V x I). An eighth watt or higher zener will work fine.

Title: Re: Zener Diode in Yellow Shark
Post by: grodada on September 26, 2011, 01:50:10 PM

Thanks to both of you.

Title: Re: Zener Diode in Yellow Shark
Post by: mikitz on May 09, 2014, 01:21:08 AM

Sorry this is an old post but I'm just trying to figure out the yellow shark myself. The zener diode seems to be involved in voltage regulation, am I right? If a regulated power supply is used we could just omit the zener altogether without any affect on the sound, right?

Title: Re: Zener Diode in Yellow Shark
Post by: mikitz on May 09, 2014, 02:35:43 AM

IvIark over at tagboardeffects answered my question.. apparently Bjorn likes using zener diodes in the LED circuit, it isn't really part of the audio circuit at all.. so you can omit it without affecting the way it sounds.

Quote from: mikitz on May 09, 2014, 01:21:08 AM
Sorry this is an old post but I'm just trying to figure out the yellow shark myself. The zener diode seems to be involved in voltage regulation, am I right? If a regulated power supply is used we could just omit the zener altogether without any affect on the sound, right?

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Projects => General Questions => Topic started by: grodada on September 26, 2011, 01:19:15 PM