Tone Stack Treble Cap

  • Thread starter Thread starter FourT6and2
  • Start date Start date
FourT6and2 said:
Oh, right you are! Have you played one?
I just found a whole writeup about it on AmpBooks if you scroll down to the "Modifications MID" section:

https://www.ampbooks.com/mobile/classic-circuits/peavey/
Click to expand...
Yes, a friend/band mate had a 60. I made him buy it because I had enough amps. Back then, I had no idea what the switches did. We flip them til we liked the combination. That amp through my XXX cab was a great pair. I liked it more than his 5150s.
 
The Laney GH/VC etc series have a 220n bass cap. Just makes it sound even more boxy to me

Laney protube series have a switchable 22n treble cap on the 'midboost' switch, which probably just has the effect pf bypassing the tone stack
 
WarHed said:
The Laney GH/VC etc series have a 220n bass cap. Just makes it sound even more boxy to me

Laney protube series have a switchable 22n treble cap on the 'midboost' switch, which probably just has the effect pf bypassing the tone stack
Click to expand...

I think you're talking about different caps? This thread is about the smaller tone stack treble peaker that's around 470pF - 560pF in most amps. You seem to be talking about the larger 0.022uF caps?
 
FourT6and2 said:
I think you're talking about different caps? This thread is about the smaller tone stack treble peaker that's around 470pF - 560pF in most amps. You seem to be talking about the larger 0.022uF caps?
Click to expand...
I have a little Single EL84 amp I designed.. I say that losely as it's an ongoing thing.. I try this I try that.. I like it and then I don't..
It took me a while to realize a Cathode Biased Amp with no negative feedback is bright as fuck if you just use common specs..
I just switched the 470p Treble Tonestack Cap to a 250 and it went a long way to tame the highs along with a few Plate Snubber Caps..
 
FourT6and2 said:
I think you're talking about different caps? This thread is about the smaller tone stack treble peaker that's around 470pF - 560pF in most amps. You seem to be talking about the larger 0.022uF caps?
Click to expand...

Yah i was getting off topic and talking about the other tone stack caps.
If you play with the TSC, you'll notice that making the treble cap larger just lowers the high pass frequency cut off point of the treble control, which eats into (raises and shrinks) the mid-dip, and eventually just forms a complete bypass of the tone stack
https://www.guitarscience.net/tsc/marshall.htm
 
WarHed said:
Yah i was getting off topic and talking about the other tone stack caps.
If you play with the TSC, you'll notice that making the treble cap larger just lowers the high pass frequency cut off point of the treble control, which eats into (raises and shrinks) the mid-dip, and eventually just forms a complete bypass of the tone stack
https://www.guitarscience.net/tsc/marshall.htm
Click to expand...

Right. Check out post 12 ;)
 
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