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Output voltage query
Output voltage query
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Old 16th January 2017, 11:27 AM   #1
a91gti is offline a91gti  England
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Default Output voltage query

Forget it.
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Last edited by a91gti; 17th January 2017 at 12:06 PM.
 
Old 16th January 2017, 11:28 AM   #2
a91gti is offline a91gti  England
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The link would be useful I suppose.

Assembled 6N3 Tube Pre-AMP Stereo Hifi Buffer Preamplifier For Audiophile DIY
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Old 16th January 2017, 12:04 PM   #3
petertub is online now petertub  Sweden
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Quote:
Originally Posted by a91gti View Post
I would not buy it in the first place if you cannot get schematics and a reasonable answers from the vendor.
Ebay has lot's of vendors that gives support don't support those that lacks support :-)
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Old 16th January 2017, 12:04 PM   #4
DF96 is offline DF96  England
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The reason they can't tell you the output voltage is because it depends on the input voltage. They should be able to tell you the gain. Given the circuit diagram it should be possible to estimate the gain. Almost certainly it will have too much gain, unless it really is a buffer - in which case the gain will be close to 1.
 
Old 16th January 2017, 09:22 PM   #5
a91gti is offline a91gti  England
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Thanks for your replies guys.

I am looking for something to act as output stage in a cdp and have seen this board used for that purpose.

I shall persevere with attempting to get a diagram or answer re gain from the vendor.
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Old 16th January 2017, 10:08 PM   #6
woody is offline woody
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With that listing it is hard to tell. I thought
when you use the term buffer this implied
a circuit with no gain. Like the B1 the unity gain
buffer by Nelson Pass is sometimes described
as a Buffer Preamp although it clearly has no gain.
 
Old 17th January 2017, 10:09 AM   #7
DF96 is offline DF96  England
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An output stage in a CD player has a specific job to do. It is unlikely that a random Chinese 'preamp' bought off ebay will do a better job than whatever the CD player designed intended.
 
Old 17th January 2017, 10:53 AM   #8
a91gti is offline a91gti  England
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However for 16 it may be worth a try given how crap the output stage is in the majority of CD players. If you've nothing useful to contribute...
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Old 17th January 2017, 11:51 AM   #9
DF96 is offline DF96  England
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If you are in a position to reverse-engineer some CD player output stages and conclude that they are "crap" then you are in a position to design your own better output stage. So why not do this?
 
Old 17th January 2017, 01:51 PM   #10
Mooly is offline Mooly  United Kingdom
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Output voltage query


Seeing as the original question (post #1) has been deleted the thread is meaningless and is thus closed.
 

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