Sozo electrolytics, interesting!

[Jana]

im a little turned off by some of the negativity surrounding sozo's

Me too, I have used both the regular and vintage series Sozo's and am well pleased with them, especially the vintage series. If I have a choice, they are what I use. After the Sozo, I go for Mallory 150's. My orange drops have been relegated to the "use as a last resort junk box."

[M Fowler]

I switched up my last three trainwreck builds. I had joebob build two of my boards with 150 mallarys on one, sozo on another and I put ODs on the third board I built.

Mark

[hitchcaster]

if they are going down i reccommend shorting them.. if they are going up id reccommend investing in the mouser 100 packs.... you get a better price that way

i find the bleeder resistor value effects the tone FWIW

Which way? What are the trends?

[Zippy]

if they are going down i reccommend shorting them.. if they are going up id reccommend investing in the mouser 100 packs.... you get a better price that way

i find the bleeder resistor value effects the tone FWIW

Which way? What are the trends?

Say what? I'm asking about the correlation between TONE and bleeder resistor value.

[Structo]

Heheheheh, another successful derailment.

Back on topic please.

[hitchcaster]

i experimented with a dumble power section and just noticed the value mattered for what i wanted to hear and feel. i couldn't put it into words for you why what i thought was better or worse..i was just stating that it might be worth experimenting because its not a "any ol' ballpark value will do' kind of thing.. alot of it is just a feel thing too.. all IHMO and FWIW

[Tonegeek]

im a little turned off by some of the negativity surrounding sozo's

Me too, I have used both the regular and vintage series Sozo's and am well pleased with them, especially the vintage series. If I have a choice, they are what I use. After the Sozo, I go for Mallory 150's. My orange drops have been relegated to the "use as a last resort junk box."

You might save your Sprague (6PS series only) if you ever build a Dumble clone as they are the preferred signal caps for that amp. Or, you can give them to me.

[Bob-I]

i experimented with a dumble power section and just noticed the value mattered for what i wanted to hear and feel. i couldn't put it into words for you why what i thought was better or worse..i was just stating that it might be worth experimenting because its not a "any ol' ballpark value will do' kind of thing.. alot of it is just a feel thing too.. all IHMO and FWIW

I did the same and I agree, it's hard to put into words. I felt that the lower values created a softer attack, maybe gentler. I started with 470K and moved all the down to 100K. I settled on 220k parallel with 100uF for the 50 watter and 220k parallel with 220uF on the 100 watter but I may change that.

[Roe]

I just replaced the F&Ts in my early 67 100w (1202-84 and 1202-119) with 2 super caps. sound is warmer, highs are softer but bass is still tight. I'm quite positive there is less ghosting as well. I also appears to sound a little dirtier, or a little more marshally.

[crocket]

Hi All,
Im working on an express and liverpool build.
I was intending on 2 x 47uf 450V low Esr caps in parallel for the B+ 1.
Apon finding this post and Glen's findings i have to make a decision on parallel or series.

It seems like an improvement and "makes it better" doing series.
I like the idea of making a Liverpool darker.

Will the series caps form being 900V but only 415V B+ ?

It not so easy to try both ways as im doing an under and over but not impossible. I have a cap board with b1 caps are under see attachment.

any advise on this matter would be good

thank you to the helpful people here

David

[crocket]

Hi All,
Im working on an express and liverpool build.
I was intending on 2 x 47uf 450V low Esr caps in parallel for the B+ 1.
Apon finding this post and Glen's findings i have to make a decision on parallel or series.

It seems like an improvement and "makes it better" doing series.
I like the idea of making a Liverpool darker.

Will the series caps form being 900V but only 415V B+ ?

It's not so easy to try both ways as im doing an under and over cap board,but not impossible. see attachment.

any advise on this matter would be good

thank you to the helpful people here

David

[Structo]

As for the Sozo's, I know the Marshall guys at Metro really like them.

They seem to use the Vintage ones on the JTM's and the standard ones on the JCM or newer designs.

What ever happened with Solen caps? The fast caps.

Seemed like those were a flavor of the month for a while.

Although they are polypropylene and most D amps use polyester.

They do make a polyester film cap but they are only rated at 160v.

They have teflon film caps that are very expensive.

I think the Solen's are more geared towards Hi Fi.

But if I recall, Brown Note offered them on their amps for a time.

[Roe]

I experimented a little with the screens filtering on my ceria express. the stock ceriatone filtering is 47uf, I tried adding a 100uf cap in series but it did not make a huge difference. response became a little looser, but not much

[crocket]

2 x 47uf in series is only 23uF !!
I think thats to many ghosts in the room.

I need the 2 x 100uF to do this.

Ive just realized my mistake in my question

Thanks all

David

[Structo]

Yes, cap values add when in parallel and when in series use the

1 / (1/C1 + 1/C2) = Ct or the same formula as for parallel resistance.

So if you have two caps of the same value in series, the total is half of one cap value.

I just remember that caps are the opposite of resistors as far as totals go.