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Old 30th March 2012, 05:15 AM   #11
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Join Date: Sep 2011
Location: El Triunfo
Hi
Here are the photos the piezo-pickups CS-29, and photos turntables Ziphona MA=224.
Which schematic is required to exit?
Why Mr.ThorstenL turntables Ziphona MA-224 with this we need the RIAA preamplifier than usual amplifier with gain of Av= (8 .. 10)dB and the input impedance of 1Mohm?
Thank you and cheers!
Attached Images
File Type: jpg CS-29.JPG (63.7 KB, 80 views)
File Type: jpg Gramofon-prednja.JPG (73.6 KB, 76 views)

Last edited by formula 22; 30th March 2012 at 05:24 AM.
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Old 30th March 2012, 05:25 AM   #12
Previously: Kuei Yang Wang
 
Join Date: Nov 2002
Hi,

Quote:
Originally Posted by formula 22 View Post
Which schematic is required to exit?
I know 1MOhm input buffer will work, because that is how they where used with the other east German Equipment.

Radio's, Amplifiers etc. all had inputs labelled "TA" for ceramic inputs that where 1MOhm, minimum capacitance.

The three resistor attenuators I do not know if they work well or not. But as you already have build a MM Riaa Pre, trying them would be easy. If it is still is not good, use the 1M input impedance buffer...

Ciao T
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Old 30th March 2012, 06:07 AM   #13
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Default Preamplifier with Ziphona MA 224

Hi
Is this schematics can be used as a preamplifier for Ziphona MA 224?
Or they need some changes?
thank you!
Attached Files
File Type: pdf Preamp for Ziphona.pdf (23.9 KB, 32 views)
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Old 30th March 2012, 06:41 AM   #14
Previously: Kuei Yang Wang
 
Join Date: Nov 2002
Hi,

Quote:
Originally Posted by formula 22 View Post
Is this schematics can be used as a preamplifier for Ziphona MA 224?
No.

I have given all the information in previous posts.

If you use on line translation and you do not understand, please seek help from someone who speaks good enough english.

Ciao T
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Old 5th April 2012, 05:33 AM   #15
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Wink Preamplifier for Ziphona MA 224 (CS-29)

Hi all!
I made this schematic saves preamp for piezo pickup CS-29 (Ziphona MA 224) and now everything is OK!
Excellent turntable to an amplifier can be heard now and enjoy music Dire Streits!
Cheers!
Attached Images
File Type: jpeg Ziphona MA 224.jpeg (16.9 KB, 58 views)
File Type: jpg Preamp for CS-29.JPG (75.2 KB, 47 views)

Last edited by formula 22; 5th April 2012 at 05:38 AM.
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Old 7th April 2012, 05:11 AM   #16
Previously: Kuei Yang Wang
 
Join Date: Nov 2002
Hi,

Quote:
Originally Posted by formula 22 View Post
Hi all!
I made this schematic saves preamp for piezo pickup CS-29 (Ziphona MA 224) and now everything is OK!
Excellent turntable to an amplifier can be heard now and enjoy music Dire Streits!
Cheers!
Good it worked out in the end.

Ciao T
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Old 21st April 2012, 05:02 AM   #17
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Lightbulb Circuit for buffer for ceramic pickup

Hi all!
I want to can this ceramic pickup I create a buffer with mosfet BS170 or similar with the input resistance of 1Mohm that I see with this buffer to turntable sounds?
Power supply to be Ucc = 9...12V
So please give a proposals circuit (schematic).
thank you!

Last edited by formula 22; 21st April 2012 at 05:05 AM.
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