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madbeanpedals::forum

Projects => General Questions => Topic started by: ch1naski on April 01, 2013, 05:03:28 AM

Title: Firebomb R1 on single-sided pcb: what is it?
Post by: ch1naski on April 01, 2013, 05:03:28 AM
On the single-sided pcb, there are pads and a R1 designation. These are NOT on the layout for the double-sided pcb, nor is it listed in the parts list. and as far as my wine-drinking eyes can see, it's not even in the schematic. on the SS (single-sided) board, it is connected to the INPUT A, along with the input cap. typo on the board layout? anyone built the SS version and figured this out?
Title: Re: Firebomb R1 on single-sided pcb: what is it?
Post by: DutchMF on April 01, 2013, 07:04:03 AM
Just checked out the schematic, R1 is probably a pull-down resistor for the A input. If you look carefully, you'll also see that R9 isn't on the double sided layout and the schematic, that's the pull-down for the B input. I've built 2 Firebombs on double sided boards and never felt the need to add one...

Paul
Title: Re: Re: Firebomb R1 on single-sided pcb: what is it?
Post by: ch1naski on April 01, 2013, 02:15:24 PM
Hey, thanks Dutch. I was populating the board and going crazy.

Sent from my Nexus 7 using Tapatalk HD
Title: Re: Firebomb R1 on single-sided pcb: what is it?
Post by: cjs2k on March 12, 2019, 03:21:31 AM
So what is the word, if it's not used, would it be jumped?
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