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Title: Resistor 100R Post by: NoPrints on April 27, 2008, 04:15:57 AM When I unpacked my kit I recieved the pack of resistors but with one missing. The "100R". Has this been left out because it is not required? Or should I nip down to the local electronics supply and pick one up? It runs between the middle tone post and the 0.022UF on the board.
Thanx, Tim. Title: Re: Resistor 100R Post by: grod915 on April 27, 2008, 10:27:54 AM Hi Tim,
I'd replace it. I don't think anything in the layout is "extra". Also, that resistor goes from the center tone tab to the ground buss, not the .022 cap. Triple check your connections against the layout! Good luck and have fun, Gerry Title: Re: Resistor 100R Post by: NoPrints on April 28, 2008, 01:15:16 AM Ah so it does Gerry. Note to self: Use eyeballs more thoroughly!
Thanx, Tim. BTW, what does the "R" stand for ? Title: Re: Resistor 100R Post by: ChrisL on April 28, 2008, 02:27:05 AM That 100R (ohm) resistor isn't "absolutely" required as you can just wire the middle lug of the tone pot to the CCW lug of the volume and then to ground. But, Gerry is correct...stick to the layout.
Title: Re: Resistor 100R Post by: NoPrints on April 28, 2008, 07:39:12 AM Ok to original layout I will adhere to.
Thanx. Title: Re: Resistor 100R Post by: grod915 on April 28, 2008, 09:02:51 AM On second thought........ :-\
I got off my lazy butt and found the "Original" schem here: http://www.dreamtone.org/pdf/18watt_Schematic_08-28-03.pdf It shows the tone knob just to the right of V1 with no resistor between the sweep and ground so, as ChrisL pointed out, it shouldn't hurt anything to leave the resistor out if you wish. It's funny, I didn't even notice the "R" after 100. My brain automatically read it as 100 ohms! I'm just starting to build my first amp (a 5E3), I'd better make sure I triple check against the layout too! ;D |