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"International" capacitors

P

pk

Jan 1, 1970
0
I am looking for International capacitors info,
On the cap is written: Japan, International, C.
They might be vintage
They came with a Fenter amp from the USA
80 Uf 450 volts
20 Uf 450 volts
I have pics of them.
Thank you Peter Kluken
 
I am looking for International capacitors info,
On the cap is written: Japan, International, C.
They might be vintage
They came with a Fenter amp from the USA
80 Uf 450 volts
20 Uf 450 volts
I have pics of them.
Thank you Peter Kluken

sounds kinda like you have the relevant info already.


NT
 
S

Sofie

Jan 1, 1970
0
Unless you are looking for "exact" mechanical replacements which may be next
to impossible and new electrolytic capacitors of the same Uf and voltage
rating will work perfectly and they will probably be much smaller that the
older originals. The values that you mentioned are not that hard to find
but you while the 450 V voltage rating may be common you may have to sub a
22 Uf for the 20 Uf unit and possibly an 82 Uf or even a 100 Uf for the 80
Uf unit.... should not be any kind of a problem with the sub values since
most electrolytics have a fairly wide tolerance rating.
Daniel Sofie
Electronics Supply & Repair
- - - - - -
 
E

Eeyore

Jan 1, 1970
0
pk said:
I am looking for International capacitors info,
On the cap is written: Japan, International, C.
They might be vintage
They came with a Fenter amp from the USA
80 Uf 450 volts
20 Uf 450 volts
I have pics of them.

What exactly do you want to know ? The name rings no bells with me. That company
may either have gone bust or merged with another.

Are you one of those clowns who think that PSU caps have to be so authentic as
to come from the same batch lest the sound of the guitar will change ?

Graham
 
P

pk

Jan 1, 1970
0
I asked this question because the International caps perform, sound and feel
much better than Mallory and Sprague Atom in a Fender Blackface Twin, I dont
know why.
Printed on the caps : HTD : High Temperature Dynamics( for high temperature)
Could this affect the feel and sound in a Fender Twin amp?
Thanks Peter.
 
P

pk

Jan 1, 1970
0
No Graham, i am not that type of clown.
I asked this question because the International caps perform, sound and feel
much better than Mallory and Sprague Atom in a Fender Blackface Twin, I dont
know why.
Printed on the caps : HTD : High Temperature Dynamics( for high temperature)
Could this affect the feel and sound in a Fender Twin amp?
Thanks Peter.
 
J

James Sweet

Jan 1, 1970
0
pk said:
I asked this question because the International caps perform, sound and feel
much better than Mallory and Sprague Atom in a Fender Blackface Twin, I dont
know why.
Printed on the caps : HTD : High Temperature Dynamics( for high temperature)
Could this affect the feel and sound in a Fender Twin amp?
Thanks Peter.


This is one of those things audiophools will argue endlessly on. Really
so long as the rating is correct there should be no difference at all
between one capacitor and another. "High Temperature Dynamics" sounds
like meaningless marketing speak.

Have you tried Mallory and Sprague caps yourself? They're well known
brands with a quality product that should perform as well as anything,
I'm curious as to how they sound or "feel" inferior.
 
B

Brittany Martin

Jan 1, 1970
0
I am looking for International capacitors info,
On the cap is written: Japan, International, C.
They might be vintage
They came with a Fenter amp from the USA
80 Uf 450 volts
20 Uf 450 volts
I have pics of them.
Thank you Peter Kluken

all capaciters are internationel. they don' make capaceters in the
united states.
 
I asked this question because the International caps perform, sound and feel
much better than Mallory and Sprague Atom in a Fender Blackface Twin, I dont
know why.

Its easy to form these opinions from listening tests, but it doesnt
make it reality. Get a couple people to run a double blind test for
you and you'll not be able to tell which is which.


NT
 
P

pk

Jan 1, 1970
0
Mallory and Spraque have a more stiffer feel , touch, some runs are
difficult to play, they might be too good?
 
No Graham, i am not that type of clown.
I asked this question because the International caps perform, sound and feel
much better than Mallory and Sprague Atom in a Fender Blackface Twin, I dont
know why.
Printed on the caps : HTD : High Temperature Dynamics( for high temperature)
Could this affect the feel and sound in a Fender Twin amp?
Thanks Peter.

"Eeyore" <[email protected]> schreef in bericht








- Show quoted text -
 
pk:
BS ALERT: The electrolytic cap values you mentioned are most likely B
+ Filter Caps and are absolutely not involved in audio stage coupling
functions where someone "may" have a very very small argument
regarding types of caps affecting the objective (not measureable)
sound quality.
Take Sofie's advice and just replace them and no one will know the
difference except you of course.... and you will continue to think
that the sound is not what it should be. This is a mental thing....
get a grip and get over it.
I bet you also believe that your interconnecting cables and speaker
wires have to be bi-radially wound, oxygen free copper, 06 guage with
gold connectors @ $15 per foot.... and on a blind A/B test you could
not tell the difference if someone substitued cheapo cables and wire
on typical length cable runs.
electricitym
 
pk:
I wish I had the "international caps" you are looking for.... I could
make some real money here.

"stiffer feel"
read between the lines...... "snake oil"
electricitym
 
J

James Sweet

Jan 1, 1970
0
pk said:
Mallory and Spraque have a more stiffer feel , touch, some runs are
difficult to play, they might be too good?


Huh? The whole point of a filter capacitor is to "stiffen" the power
supply, filtering out the ripple. If you want a less effective
capacitor, put a resistor in series with it. I think the difference is
all mental though.
 
E

Eeyore

Jan 1, 1970
0
pk said:
I asked this question because the International caps perform, sound and feel
much better than Mallory and Sprague Atom in a Fender Blackface Twin, I dont
know why.
Printed on the caps : HTD : High Temperature Dynamics( for high temperature)
Could this affect the feel and sound in a Fender Twin amp?

In order for there to be a difference, audible or otherwise, you'd have to
provide a meaningful explanation of why one company's microfarads behave
differently to another company's microfarads !

And *then* additionally why the caps in the power supply would be audible in the
sound. It's not as if they're in the direct signal path !

Have you actually considered measuring their value ? I wouldn't mind betting
that the caps you're saying sound better have actually dried out and their value
is a fraction of the value printed on the can. That *would* affect the
amplifier's dynamics. You could mimic that effect by using new caps of lower
value than original.


Graham
 
E

Eeyore

Jan 1, 1970
0
pk said:
No Graham, i am not that type of clown.
I asked this question because the International caps perform, sound and feel
much better than Mallory and Sprague Atom in a Fender Blackface Twin, I dont
know why.

I suggest you address yourself to the issue of this 'better sound and feel' and
what exactly you mean by it.

I'd almost put money on those International caps being a fraction of their
original value. This is what happens to electrolytics over time. By replacing
them you're restoring the amplifier to original condition and you no longer like
that sound.

I can assure you that 'back in the days' when your amp was designed, no-one
believed in capacitors having any special sonic effects so you can be sure they
weren't chosen for that reason.

Do you have a capacitance meter ?


Graham
 
E

Eeyore

Jan 1, 1970
0
James said:
This is one of those things audiophools will argue endlessly on. Really
so long as the rating is correct there should be no difference at all
between one capacitor and another. "High Temperature Dynamics" sounds
like meaningless marketing speak.

Have you tried Mallory and Sprague caps yourself? They're well known
brands with a quality product that should perform as well as anything,
I'm curious as to how they sound or "feel" inferior.

I'll bet you that the original caps have lost value through ageing.

Graham
 
E

Eeyore

Jan 1, 1970
0
Its easy to form these opinions from listening tests, but it doesnt
make it reality. Get a couple people to run a double blind test for
you and you'll not be able to tell which is which.

Exactly.

I've been dealing with this issue only this week. There was a guy who was
convinced that his guitar amps only hummed in this particular recording studio. We
measured everything inside out but he wasn't happy so we took the amp to another
location where it measured exactly the same again.

It sounded different of course due to the changed acoustics. Apparently My Guitar
Tech can't understand that.

Graham
 
E

Eeyore

Jan 1, 1970
0
pk said:
Mallory and Spraque have a more stiffer feel , touch, some runs are
difficult to play, they might be too good?

Now you've proven yourself to be barking mad. Do please explain how the
capacitors make it difficult to play !

Look, have a good night's sleep and start again.

Graham
 
E

Eeyore

Jan 1, 1970
0
pk:
BS ALERT: The electrolytic cap values you mentioned are most likely B
+ Filter Caps
Yes.


and are absolutely not involved in audio stage coupling
functions where someone "may" have a very very small argument
regarding types of caps affecting the objective (not measureable)
sound quality.
Agreed.


Take Sofie's advice and just replace them and no one will know the
difference except you of course.... and you will continue to think
that the sound is not what it should be. This is a mental thing....
get a grip and get over it.

It's entirely possible that the new caps actually measure the originally required
80uF whilst the old ones may be as little as 20uF due to ageing (mainly drying
out).

That will affect how the amp's dynamics sound when they are replaced by ones of
the 'correct' value.

The OP could try say 47uF or 22uF in place of the 80uF to see how it sounds. This
will introduce a danger of the amp 'motorboating' though.

Graham
 
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