VFE Switching Board - questions while building

[mark123]

I have a 1/2W 1k resistor near the Zener and the other 1k resistor in the schematic comes off the switch on the silkscreen it's marked P1k but I'm not familiar with the P.  What does it mean?

[hasanova]

I guess, P stands for "Power", it's a power/ current resistor?

[somnif]

I guess, P stands for "Power", it's a power/ current resistor?

Pretty much this. Its a 1/2W resistor in a 1/8W size form factor. Its acting as a power resistor (designed to stay cool while having lots of power running through it).

[mark123]

Thanks for the info. Is this common?

[madbean]

Thanks for the info. Is this common?

Peter suggests 1/2W for when and 18v power supply is used but so far all the VFE pedals I've seen are 9v only. A 1/4W is fine for all the VFE projects I've released so far and is actually what is recommended in the new switching board doc. There's no downside to using 1/2W (the upside being better current handling and slightly less noise prone), though. It's just less commonly used in pedals.

[mark123]

Thanks for the info. Is this common?

Peter suggests 1/2W for when and 18v power supply is used but so far all the VFE pedals I've seen are 9v only. A 1/4W is fine for all the VFE projects I've released so far and is actually what is recommended in the new switching board doc. There's no downside to using 1/2W (the upside being better current handling and slightly less noise prone), though. It's just less commonly used in pedals.

Thanks.

Is using the P in the P1K have any significance to anyone other than VFE?

[madbean]

Thanks for the info. Is this common?

Peter suggests 1/2W for when and 18v power supply is used but so far all the VFE pedals I've seen are 9v only. A 1/4W is fine for all the VFE projects I've released so far and is actually what is recommended in the new switching board doc. There's no downside to using 1/2W (the upside being better current handling and slightly less noise prone), though. It's just less commonly used in pedals.

Thanks.

Is using the P in the P1K have any significance to anyone other than VFE?

Not AFAIK. I'm sure he used "P" to designate the 1/2W in that position as opposed to the other 1k resistor on the board which is 1/8W.

[mark123]

Cool thanks.