Rangemaster colors the sound.. R.G.?

[ESPguitar]

That means the bass frequences..

And why is it a 0,005uf or 0,05uf cap on the output? (why exactly yhat value) if i change that cap to over 10uf what happends?

RB

[hairyandy]

I would think that changing the .005uf to a 10uf on the output wouldn't change the tone a whole lot.  I haven't tried that drastic of a change, but I have put the .005uf and a .01 on a switch and it didn't do much for me.  Changing the input cap makes much more difference I think...

[mlabbee]

It's supposed to - it's a treble booster.

Unless I'm mistaken, the output cap is just a coupling cap - the value is big enough not to affect the sound.  Going bigger should have no effect - going smaller will start to cut into the bass response.  There's a failry extensive article on how the circuit works, but I can't recall what site it's on - anyone?

[hairyandy]

R.G. has pretty much written the book on the Rangemaster at the GEOFEX site.  Here's the link:

http://www.geofex.com/Article_Folders/Rangemaster/atboost.pdf

[ESPguitar]

I've read the article..

And why you  put a cap before the output is beacaus we don't wan't DC in our signal..

I'll read that article one more tonight:)

RB

[ESPguitar]

I can't find anything in his article about the cap values..

Shouldn't the bass frequences pass pretty untouched ?

RB

[d95err]

Shouldn't the bass frequences pass pretty untouched ?

RB

No, a treble booster is basically a high-pass filter and a volume increase. It reduces bass rather than boost the treble. In addition, the germanium transistor adds a some nice germanium distortion.

You can add a switch to select different input capacitors. If you put in a fairly large capacitor, you get more of a flat response. However, this doesn't sound particularly good on the Rangemaster IMHO (tried it).

[H.Manback]

Especially the bass frequencies are stopped.

I don't want to sound rude, because I don't mean it rude, but it might be a good idea to study some basic electronics. If you do not know that capacitors have a impedance of the form 1 / 2*pi*f*C (f is frequency and C is capacitance), you shouldn't be surprised that you don't understand why bass is blocked and treble is boosted.

In short, larger cap -> more bass because the impedance at the low frequencies reduces. Impedance you should see sort of like resistance at some kind of frequency.

[ESPguitar]

Especially the bass frequencies are stopped.

I don't want to sound rude, because I don't mean it rude, but it might be a good idea to study some basic electronics. If you do not know that capacitors have a impedance of the form 1 / 2*pi*f*C (f is frequency and C is capacitance), you shouldn't be surprised that you don't understand why bass is blocked and treble is boosted.

In short, larger cap -> more bass because the impedance at the low frequencies reduces. Impedance you should see sort of like resistance at some kind of frequency.

I understand you:)

That was the answer i needed confirmed, thanks..