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PostPosted: Sun May 20, 2007 7:02 pm 
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Are these the slope and plate resistors of V1? Slope being the one circled in red?

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PostPosted: Mon May 21, 2007 8:18 am 
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Holy Ghost
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Thats the plate resistor. It helps control gain. If you bypass it with a cap, you can roll off hi frequencies. Lower values of plate resistor = more gain. Frequency response is controlled by the bypass cap, grid stopper and some other parts.

Hope that helps. Check this link out for some basic terminology:

http://www.diystompboxes.com/wpress/?page_id=10

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PostPosted: Mon May 21, 2007 12:44 pm 
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Oh ok, so they're both plate resistors . . .

I'm looking at this amp, wondering how I can incorporate some of the Two-Rock tweaks I have notes on to switch between the Fender voice and the TR voice.

- The slope resistor is a 150K
- Plate resistors are 100k (already are on this amp)
- Cathode resistors/cap = 1.5k/4.7uf

I just can't find the slope on the schematic. 150k is such a higher value that I'm assuming that's where the difference in mid comes from between the amps.


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PostPosted: Tue May 22, 2007 8:21 pm 
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Joined: Sat May 19, 2007 9:04 am
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Perhaps your referring to a non-tweed era Deluxe. A "slope" resistor usually refers to the resistor between the bass and treble sections of a tone stack. In a non-tweed Deluxe a 100K resistor is found in this position. Check this out:
http://www.schematicheaven.com/fenderam ... _aa763.pdf
Varying this resistor changes the shape and interaction of the tone filtering.
John


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