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Old 13th November 2012, 04:32 PM   #91
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[QUOTE=dady;3239579]
Quote:
Originally Posted by dady View Post
We got a preamp that looks Hi end but actually cost peanuts.
I didn't care about the way it looks but how it sounds. Still a fantastic little preamp. I'll have to put it up for sale since its collecting dust.

Here's mine at its peak. The funny thing is that my turntable wasn't level and the VTA is way off. You can notice it around the 4th minute. Mine you that Youtube kills it with ridiculous compression but you can tell how it might sound in my living room.

Cheers:

Miles Davis - Ascenseur pour l'échafaud - Générique - Rega P25 - YouTube

Al Green - Love and Happiness - Rega P25 - YouTube
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Old 13th November 2012, 09:34 PM   #92
dady is offline dady  Argentina
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Quote:
Originally Posted by Jadran View Post
Back on topic!

That's an interesting idea.
Are you working on it? I wish to see this kind of mod on pictures.
Dovro.
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Old 13th November 2012, 10:00 PM   #93
dady is offline dady  Argentina
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Default Sorry, I had no time for make some pics, but they are my duty...

Quote:
Originally Posted by Jadran View Post
Back on topic!

That's an interesting idea.
Are you working on it? I wish to see this kind of mod on pictures.
Doberdan Jadran and folks.
Thats true about your requirements. I disassemble the preamp after try to listen it for two days. I abandon the project two years ago but recently I found your topic here in Diyaudio and re inspired to me for encourage the project specially because you found a rich sound in this . I got some pics with my cellular phone and right now I am on the middle of many things. I finishing my RX1500 VG with magnetic floating platter. And the computer for the processor in my hifi place. You can see the transformer, the diodes, the filter, the 220volt connector and the switch inside the can, I trying to make an CSS for each valve with common cathode and make a regulation supply for the whole circuit, the other I have to confirm is the real value in the RIAA. And change the emisor follower from the second 12AX7. Best Regards and Laku noch
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Old 14th November 2012, 06:12 PM   #94
Jadran is offline Jadran  Croatia
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Muy Bien!
Now that is some real mod out there
I was wondering what to do with so much space under this black can but honestly never thought that so much stuff could be squeezed inside. Such a great idea, and much work in fact. Now you also need to do more outside changes, on the open holes. Please post the news of progress when you get time
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Old 14th November 2012, 10:48 PM   #95
dady is offline dady  Argentina
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Quote:
Originally Posted by Jadran View Post
Muy Bien!
Now that is some real mod out there
I was wondering what to do with so much space under this black can but honestly never thought that so much stuff could be squeezed inside. Such a great idea, and much work in fact. Now you also need to do more outside changes, on the open holes. Please post the news of progress when you get time
Bok, In fact is easy, the only you have to do is disassemble believing and with care. The holes, yes the holes, at the beginning i planned to make CSS with tubes and use this holes, but the whole device is a prepreamp and for use in Phono magnetic MM, for that reason I put out the pot from the circuit and the selector system with relais. I got enhanced mosfets from the idea of Gary Pimm to change the load envelope of the plate curves and make more immune to the power supply changes.
But soon I become more and more ambitious with the project and the whole circuit is like that, one and work fine like "Is". But for this ambition I can chose another project and respect this original one like it is. I will not try to became complexness. I will show more pics but now I have to finish my Micro Seiki RX1500 VG that I change at all.
In another order of facts: My father born in Prgmet (close to Split) but leaved to Argentina at 8 years old in the 36'. He never come back home sadly dyed there. I were there one year ago and visit my family and I felt like in home. I miss very much this people. Lako noc
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Old 28th March 2013, 03:37 PM   #96
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Default how to provide a headphone out with the MS12B

Hi every body,

Can you show me how to create a headphone output with these preamp.

Thanks
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Old 28th March 2013, 03:40 PM   #97
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hi,

can you show me how to create a headphone output with this preamp ;
Thanks
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Old 22nd June 2013, 02:58 PM   #98
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Hi Everyone,

My wonderful Yaqin MS12B is for sale. Might as well let someone else enjoy it since it's collecting dust. It has Sonicaps 1uf with sonicaps .01 Bypass caps. Black gate Capacitors (3), 47K Caddock resistors, Upgraded Genuine Alps Pots ( Not from China), Allen Bradley Gridstoppers. Come with New Mullards 12ax7. Anyone Interested please send me an PM.

Cheers and Keep it Jazzy!
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Old 22nd June 2013, 06:16 PM   #99
dady is offline dady  Argentina
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Quote:
Originally Posted by vanloi View Post
hi,

can you show me how to create a headphone output with this preamp ;
Thanks
I think you can add another valve in cathode follower. Could be another ECC82. You have enough space for one more valve there. There are hundred of Circuits. 12B4 is another valve that you can use, 6CG7 another option. with or W/O output transformer. Of course IMHO.
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Old 22nd June 2013, 09:48 PM   #100
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Quote:
Originally Posted by migkiller1971 View Post
Hi Everyone,

My wonderful Yaqin MS12B is for sale. Might as well let someone else enjoy it since it's collecting dust. It has Sonicaps 1uf with sonicaps .01 Bypass caps. Black gate Capacitors (3), 47K Caddock resistors, Upgraded Genuine Alps Pots ( Not from China), Allen Bradley Gridstoppers. Come with New Mullards 12ax7. Anyone Interested please send me an PM.

Cheers and Keep it Jazzy!
Video:

https://www.youtube.com/watch?v=2Be6S1kbYWw
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