Cogito wrote:
David McGown wrote:
An alternative (but more expensive) suggestion is to use Duelund Silver Foil wax paper and oil bypass caps. These, in combination with larger value Miflex, are a great combination that bring in the detail while maintaining the naturalness one gets from the Myflex, and, I presume, the similar sounding Jupiter caps (I have only have direct experience with using them with Miflex). Charlie Phelps thinks these are about 99% of the sound of the topline and hidiously expensive Duelund Cast Cu-Ag PIO caps, though I admit that the cost of the bypass caps probably exceeds the cost of the main capacitor in this configuration.
https://partsconnexion.com/collections/ ... -capacitorPersonally, I would try it initially without the bypass caps, the Miflex and Jupiter caps are excellent by themselves, and then add the bypass in each position.
Installed the 1mf Jupiter output caps yesterday. The effect is immediately audible. They added sweetness to the treble.
In my preamp, there are three coupling caps. 0.1mf caps for input and interstage coupling and 1mf for output coupling. For the output coupling, do I use one 0.01mf cap or a combo of 0.1mf and 0.01mf coupling caps?
Question Sashi: what is the input impedance of the load? Are you sure that the 1uF caps are sufficient to give you full bass response?
In any event, the Miflex caps by themselves are, as David described, excellent.
Don't forget the power supply caps. They are a part of the circuit and need to be bypassed. I don't know what your circuit is, but if you can replace the B+ caps (assuming they are electrolytic) with DC Link caps, you'll be pleasantly surprised at the improvement. Again, bypass the final stage of the filter with a small value (say, 0.1uF) Miflex or better.
Stuart