Traynor YBA-2B (EL84) - is this a death cap?

GlideOn-Designs

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That's coming off the standby switch, so that's NOT the death cap.

That's an "anti-pop" which was one of the many clever tweaks Traynor liked to implement. Helps reduce or eliminate the 'pop' you tend to get when switching the standby and getting the DC voltage that audibly hits.

The Death Cap is indeed of the same value, but connected to the ground switch off the green/GROUND wire, not the standby switch white/neutral wire. You correctly identified the value but it is the wrong cap in the wrong place.

Confusing, yes as they can be typographically close but differ entirely in function. Don't assume things just because they have the same value - look a bit closer, follow the paths in the schematic and only implement changes once you are absolutely certain.
 
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doof

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That's coming off the standby switch, so that's NOT the death cap.

That's an "anti-pop" which was one of the many clever tweaks Traynor liked to implement. Helps reduce or eliminate the 'pop' you tend to get when switching the standby and getting the DC voltage that audibly hits.

The Death Cap is indeed of the same value, but connected to the ground switch off the green/GROUND wire, not the standby switch white/neutral wire. You correctly identified the value but it is the wrong cap in the wrong place.

Confusing, yes as they can be typographically close but differ entirely in function. Don't assume things just because they have the same value - look a bit closer, follow the paths in the schematic and only implement changes once you are absolutely certain.

Actually there's no standby switch in this amp, and it was coming off one of the indicator light lugs. One lug of the indicator light has the live coming from the power switch and one lead of the primary, and the other lug had the Neutral, Primary, and lead of the cap in question.
 

GlideOn-Designs

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Actually there's no standby switch in this amp, and it was coming off one of the indicator light lugs. One lug of the indicator light has the live coming from the power switch and one lead of the primary, and the other lug had the Neutral, Primary, and lead of the cap in question.
There are two switches labeled on/off and neither of them are standby???
 

doof

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There are two switches labeled on/off and neither of them are standby???
Here's a picture of the front. Only one switch, the power switch, and the indicator light is labelled 'Power'.
 

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GlideOn-Designs

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I see, the right red "Power" is the ultra 70s jewel lamp. Traynor amps such as the later YBA3s and YGRs have Standby and Power in those respective places. Makes sense that later 70s Traynors have some more minimalist features.

Still, I presume they kept the "anti-pop" cap in any Traynor amp featuring a standby switch or it least if apart of original schematic it shouldn't be removed amd only helps.
 




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