I do Wima caps when I can physically fit them in. Most of the electrolytic caps I replace are not in the signal path. I use a good general purpose cap that measures a low ESR and a capacitance value within a 5%. I have found that today's caps are really close to published values. I have considered using a higher grade of Audio rated caps, but frankly for this level of designs, I believe we are already on the point of diminishing returns. For real high end stuff, like doing mods to Vacuum Tube pre-amps and Power-amps, where folks spend larger amounts of money on grid coupling caps you may be able to get a real audible improvement.Hello jwb. I do some recapping now instead of repairs, or in addition. It looks like you use Nichicon for the larger 'lytics? Have you ever considered their "audio" lines of caps? I have a Mac receiver to do and am choosing caps. Also, nice touch on the (poly? film/foil?) replacement of the smaller ones. What brands do you like for those? I've looked through audio forums where I'm not a member, and there is some extreme hype there. I've been using Nichicon for a long time, since some Panasonics leaked in the bag after about 10 years.
Does this mean the 10s has no working direct phono output ,or is it just a modification you made?As can be seen, the "Direct Phono Output" function has been completely removed. The phono input now goes directly to the 1st stage Phono Pre-Amp assembly.
Yes it is. Thanks for finding it. I could have sworn that I originally posted it in the Vintage Equipment Repairs & Modification area. I also had posted a few other threads there too. Could it have been moved somehow?
Yes the 10s has no direct phono output. The phono input goes directly to the phono pre-amp assembly, bypassing the switch assembly. This is done to reduce the capacitance with the wiring. The switch and addition cabling does add capacitance to the overall input and capacitance in this case is an enemy of the 30KHZ carrier and addition frequencies to 50KHZ. This is why it is so important to have low capacitance cables from the turntable to the demodulator input. The JVC engineers wanted to maximize the performance of the 10s over the stock 10.Does this mean the 10s has no working direct phono output ,or is it just a modification you made?
I do have a 10s and yes my direct phono output is not working. What is the benefit of disabling it? Sorry I'm not good in electronics.