diggy fresh
Well-known member
Hi y'all,
i'm refurbishing a Lexicon Primetime 93 and noticed alot of tantalum caps for decoupling the power rails, analog and digital side.
22uf and 4.7uf tantalums, They mesure all "good" with ESR similar or a tiny bit less ESR than my Panasonic FC electrolytics caps.
I'm a bit nervous about the tantalums because they could fail short and i want to preserve this piece, but i think that in theory, tantalums could be better in that application because of smaller size (less loop area) and better at high frequency, not sure.
Would you let the old tantalum there?
Replace with fresh tantalums ?
Or put a new low esr electrolytic?
Or maybe an electro with film bypass?
Curious about your opinions, i know this has been talked about a bit before but in this context of digital/analog gear and lower noise.
Not about tantalum in the signal path.
edit : I'm leaning toward replacing with low esr electrolytics for piece of mind but i don't know if it could degrade the noise. Not sure.
Thanks!
i'm refurbishing a Lexicon Primetime 93 and noticed alot of tantalum caps for decoupling the power rails, analog and digital side.
22uf and 4.7uf tantalums, They mesure all "good" with ESR similar or a tiny bit less ESR than my Panasonic FC electrolytics caps.
I'm a bit nervous about the tantalums because they could fail short and i want to preserve this piece, but i think that in theory, tantalums could be better in that application because of smaller size (less loop area) and better at high frequency, not sure.
Would you let the old tantalum there?
Replace with fresh tantalums ?
Or put a new low esr electrolytic?
Or maybe an electro with film bypass?
Curious about your opinions, i know this has been talked about a bit before but in this context of digital/analog gear and lower noise.
Not about tantalum in the signal path.
edit : I'm leaning toward replacing with low esr electrolytics for piece of mind but i don't know if it could degrade the noise. Not sure.
Thanks!