Electro vs Non-electro Caps

[Andy Le Blanc]

bad habit ........ I know........

[Structo]

Have anyone here used the Anglea Black Gater caps?

Or the Angela/Jensen Paper In Oil Signal Capacitors?

Or Angela Metalized Polypropylene Caps?

http://www.angela.com/

[Alexo]

I've used the Angela PIO's. They are very good caps for hi-fi, nice and clean and smooth, very respectful to the signal they are presented with.

I used them in a Fendery BF-type amp, the amp was always a little boring and uninspiring until I replaced them all with old Sprague PIO's, suddenly it had personality. Not that the Angelas don't have their place though.

[Andy Le Blanc]

I have noticed that jensen foil /oil caps really need to break in.
a client has commented several times about them drifting as they age.
for the the better. old caps do have a tone.

[Alexo]

I have noticed that jensen foil /oil caps really need to break in.
a client has commented several times about them drifting as they age.
for the the better. old caps do have a tone.

I noticed this too. Not sure if I preferred the Spragues because of their inherent tone, or if it's because they were pulled from a decades-old organ and were probably pretty well broken-in by the time I got them.

[Andy Le Blanc]

Ive heard that the technology to manufacture caps has really improved over
time to the point where there really is "real" control and tight tolerances.
but you cant manufacture "oldness"

[jaysg]

One of the things that happens is called 'continuous improvement'. The downside is that as new/higher rel/cheaper processes come on line, old ones are discarded. In my first job, I had to muck with a circuit where they'd used a normal transistor as a noise diode. The process had improved and the noise output of the module wasn't high enough. They were faced with selecting from old parts or redesigning with a proper white noise diode. Sometimes you can't go back, other than with NOS.