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Post subject: Bright Cap on Super Sonic Twin?
Posted: Tue Mar 18, 2014 4:08 pm
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I've read that there is a bright cap on the Super Sonic 60 and 22 on the clean channel when not in the Bassman mode. Can anyone tell me if there is a bright cap on the Super Sonic Twin and if so where it is on the circuit board? The channel is very bright and I'd like to remove it if possible.
thanks
Patrick


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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Tue Mar 18, 2014 6:18 pm
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I have not heard that about the SS22 or SS60.... wonder if anyone here can verify...?


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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Tue Mar 18, 2014 9:43 pm
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The burn channel has its own adjustable EQ section, turn the treble down, and/or increase the bass or mids if it's too bright. :wink:

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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Tue Mar 18, 2014 9:53 pm
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shimmilou wrote:
The burn channel has its own adjustable EQ section, turn the treble down, and/or increase the bass or mids if it's too bright. :wink:


+1

As well, the SS22 has a "fat" switch than can put some beef into the voicing.

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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Tue Mar 18, 2014 11:42 pm
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Unfortunately there are 3 places in the "vintage" circuit where relays switch over between Twin/Bassman to alter the circuit dynamics. Any or all of them could be designed to add more "Bright" to the Twin setting, so you could be needing to change one or more components and it makes it harder to isolate what could possibly be a single "Bright" cap.

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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Wed Mar 19, 2014 9:40 am
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Has anyone bothered to look at the schematics?

C7 is the bright cap for the 22 and 60:

http://support.fender.com/schematics/gu ... ematic.pdf

http://support.fender.com/schematics/gu ... _Rev-A.pdf

C2 is the bright cap in the Twin:

http://support.fender.com/schematics/gu ... _Rev-B.pdf

None of them are switchable, but they certainly can be clipped out if so desired.

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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Wed Mar 19, 2014 10:16 am
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Since you're reading schematics, could you tell us if the bright cap on the 22 (& the 60) affects only the "normal", "normal AND fat", or ALL 3 channels?


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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Wed Mar 19, 2014 11:02 am
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I looked at the schematics, and in the Twin, C2 has nothing to do with the burn channel, as it's out of the circuit. In the Showman mode, C2 is across the gain pot, so if the gain is turned up, C2 is shorted. If you were to clip C2, it would affect the Bassman mode and the Showman mode.

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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Wed Mar 19, 2014 5:01 pm
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So, does this "bright cap" work like the bright cap on a DRRI, tied to the volume control (effectively out of the circuit when on 10)? Or is it like having a bright switch "on" all the time?

I frequently run my treble quite low on the normal/fat channels, sometimes at 0 depending on volume setting... I wouldn't mind getting some more "use" out of my treble control.


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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Wed Mar 19, 2014 10:30 pm
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Please clarify if you want to alter the treble on the entire amp or just the "TWIN(showman)" setting leaving the "Bassman" and "Burn" un-affected.

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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Thu Mar 20, 2014 1:03 am
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ruger9 wrote:
So, does this "bright cap" work like the bright cap on a DRRI, tied to the volume control (effectively out of the circuit when on 10)? Or is it like having a bright switch "on" all the time?

I frequently run my treble quite low on the normal/fat channels, sometimes at 0 depending on volume setting... I wouldn't mind getting some more "use" out of my treble control.


With the gain control maxed in Vintage/Showman mode it is out of the circuit. In Vintage
Bassman mode it appears to shunt some small amount of highs to ground.

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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Thu Mar 20, 2014 4:12 am
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AaronK wrote:
Please clarify if you want to alter the treble on the entire amp or just the "TWIN(showman)" setting leaving the "Bassman" and "Burn" un-affected.


Firstly, I have the 22, not the twin. Secondly, either/or... definitely the "clean" side (normal and fat channels), and possibly the Burn side as well...


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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Thu Mar 20, 2014 4:13 am
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Apologies... I should have specified I have the 22, not the Twin.

bluesky636 wrote:
ruger9 wrote:
So, does this "bright cap" work like the bright cap on a DRRI, tied to the volume control (effectively out of the circuit when on 10)? Or is it like having a bright switch "on" all the time?

I frequently run my treble quite low on the normal/fat channels, sometimes at 0 depending on volume setting... I wouldn't mind getting some more "use" out of my treble control.


With the gain control maxed in Vintage/Showman mode it is out of the circuit. In Vintage
Bassman mode it appears to shunt some small amount of highs to ground.


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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Thu Mar 20, 2014 11:37 pm
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ruger9 wrote:
Apologies... I should have specified I have the 22, not the Twin.

bluesky636 wrote:
ruger9 wrote:
So, does this "bright cap" work like the bright cap on a DRRI, tied to the volume control (effectively out of the circuit when on 10)? Or is it like having a bright switch "on" all the time?

I frequently run my treble quite low on the normal/fat channels, sometimes at 0 depending on volume setting... I wouldn't mind getting some more "use" out of my treble control.


With the gain control maxed in Vintage/Showman mode it is out of the circuit. In Vintage
Bassman mode it appears to shunt some small amount of highs to ground.


Its still out of the circuit when the volume control is maxed.

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Post subject: Re: Bright Cap on Super Sonic Twin?
Posted: Fri Mar 21, 2014 4:23 am
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bluesky636 wrote:

Its still out of the circuit when the volume control is maxed.


Right, so... if the volume is NOT maxed (which is how it's used 100% of the time lol, nobody maxes the volume)... this bright cap is affecting the normal channel.... but is it affecting the FAT channel? (on the 22 the 2 vintage channels are "normal" and "fat", not "vintage" and "showman" or whatever.


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