Print Page - Help PNP NPN argggh

Title: Help PNP NPN argggh
Post by: jimoen on March 22, 2006, 08:29:11 AM

Hi,
I am trying to build a PNP Dallas Rangemaster using the layout here" Dallas Rangeblaster" http://aronnelson.com/gallery/album18/RANGEBLASTER_VERO (http://aronnelson.com/gallery/album18/RANGEBLASTER_VERO)
accept I have PNP transitor and the layout is for NPN. I know to reverse the electrolitic capicitors but my question is 1/ do I also reverse the stabalising diode and 2/ do I put the anti-pop resistor towards the ground as shown in the layout or do I put it towards the 9volt as I will be changing the polarity?
thank you for your help.

Title: Re: Help PNP NPN argggh
Post by: jimoen on March 22, 2006, 08:46:33 AM

Sorry, another thing, also "D2" should I move this for PNP?

Title: Re: Help PNP NPN argggh
Post by: jimoen on March 22, 2006, 03:32:35 PM

Anybody ??

Title: Re: Help PNP NPN argggh
Post by: fixr1984 on March 22, 2006, 10:10:07 PM

Here is the one for a Rangemaster.http://aronnelson.com/gallery/album18/DALLAS_RANGEMASTER (http://aronnelson.com/gallery/album18/DALLAS_RANGEMASTER)
Its PNP, i built it and it works out good.

Title: Re: Help PNP NPN argggh
Post by: jimoen on March 23, 2006, 02:28:22 AM

Hey thanks.
How or where can I put a reverse diode to protect it, seeing as it's PNP?
Also I would like to try the tempersture stability mod, but I dont know which way to point the diode with PNP.
Anyone want to help out?

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DIY Stompboxes => Building your own stompbox => Topic started by: jimoen on March 22, 2006, 08:29:11 AM