Simply put-I didn't have any 16uf caps left for this 5C3 Tweed Deluxe build, so I ganged up 10uf caps to get a total of 20uf for the supply.
So I went from the designed 3 caps to 6!
The amp has about zero headroom (I'm looking at other opportunities in this area...that's a different thread).
Just wondering-did doubling the number of PS caps increase the sag on this amp?
I googled this, and came up empty for answers.
How could I measure it to tell?
Multiple PS Caps-Effect on Sag?
Moderators: pompeiisneaks, Colossal
Re: Multiple PS Caps-Effect on Sag?
I would guess it lowered it. Paralleling caps usually makes they act faster than a single big one.
Re: Multiple PS Caps-Effect on Sag?
I dont think there is much headroom to be found in a tweed deluxe... and any mod to increase/stiffen the power supply is gonna make it respond differently than a tweed deluxe. You might try regular solid state diodes to increase the voltages and decrease sag/squish, but it may well lose the dynamics that make tweeds sound the way they do.
Re: Multiple PS Caps-Effect on Sag?
When I first built my Hammond conversion amp, I went with a variation of the 5E3 circuit.
I didn't care for it at all.
Seemed as if the volume control was on or off and had hardly any clean headroom.
This was with a 1Meg volume pot too.
So I re-wired it to more of a Plexi style with bass and treble and now it works great.
Cleans up nice with the guitars volume control too.
I didn't care for it at all.
Seemed as if the volume control was on or off and had hardly any clean headroom.
This was with a 1Meg volume pot too.
So I re-wired it to more of a Plexi style with bass and treble and now it works great.
Cleans up nice with the guitars volume control too.
Tom
Don't let that smoke out!
Don't let that smoke out!
Re: Multiple PS Caps-Effect on Sag?
I do like my homebuilt 5E3.
It's no heavy metal amp by any means but it has a place in the stable.
I'm going to go back and take a closer look at
the bias on the 6V6's. I suspect the problem lies there.
Those power supply caps ought to last 20 years-estimating an averaged 1000V rating.
Thanks, all!
It's no heavy metal amp by any means but it has a place in the stable.
I'm going to go back and take a closer look at
the bias on the 6V6's. I suspect the problem lies there.
Those power supply caps ought to last 20 years-estimating an averaged 1000V rating.
Thanks, all!