Marantz CD-50 and CD-60, TDA1541, CDM4/19

[rcarreira]

Thank you UV101 and Antonio,
This is still a work in progress, too bad that the pictures I posted are so small, I really tried to make it look good, as well as sounding good
UV101, the next step on the list is to replace the small caps under the TDA1541 because I already have them, I am just enjoying it as it is now before the next upgrade.
After that I will install a new clock like the one you describe, with a dedicated transformer in an outside box, where I already have a mains filter. I am still deciding if I will put the rectification there, or near the clock.
I already had your pdf about clocks, and must thank you (and the other other members on this thread) for being the inspiration for my project. It took me a few days to read all the posts, but it was very educative
António, for this project I used the LME49720HA opamps, with dedicated regulators and Mundorf output caps, my next TDA1541 project (maybe another CD50 if I can find one cheap) will feature a very nice valve output I was thinking on those small tubes like the ones you used in yours. Where did you get the transformer?
I will try to post the pictures again















Ricardo

[acccruz]

Hi Ricardo:


I have also the LME49720HA. I agree it will sound acceptable, good mids and bass, but the highs are sterile and tiring.

Nothing compares to tubes! Until today I tried as TDA1541 output stage Amperex 6922, 6N2P-EV and 6N16B.

The last ones are the winner!

You can get the transformer needed (180V and 6,3V) at eBay, at Mr. Fikkuz, at Transformatorspecialist, or elsewhere!

If you have any questions please ask!

King regards,
Antonio

[rcarreira]

Hi Antonio,
Thank you for the site with the transformers, when I start my tube project I will need at least one
What kind of capacitors you use as DC filters in the output?
I am using Mundorf now.. And recommend.

Best regards
Ricardo

[acccruz]

Hi Ricardo:

I sitll have in hands some Munford Silver Gold. It are indeed very very good output capacitors but please try russians MBM 1uF (or 1uF + 1uF) bypassed with FT-1 2000pf (teflon) and I´m sure you will be without words with what you can get wiht this conjugation - it seems there is no coupling capacitor! the music simply is like a river alive, fresh and free! But you have to let them burn around 200 hours or more...

IMHO it´s impossible to beat regarding the price (4 capacitors around 5 or 6 euros). Luckas Fikus says you only get more 5% if you jump to Mundorf Silver Gold Oil, Jensen, or Audionote, and I admit he is right!

I hope it encorage you to not be biased with brands. Please open your mind to what Russia have to offer for music at very low prices, and save your money!

The best for you,
Antonio

[UV101]

Originally Posted by acccruz

Hi Ricardo:


I have also the LME49720HA. I agree it will sound acceptable, good mids and bass, but the highs are sterile and tiring.

Not with the right power supply and decoupling