I have received a lot of broken electronic equipment and parts recently. In the lot was a pair of TA8215L chip amps. I have been very interested in the gainclone thread and have decided to build a pair.
Being a novice in circuit design I would like a few suggestions for a gainclone like amp, based on these amps, to build for practice and experimentation purposes before I start on my "real"gainclones.
I can follow schems for assembly but don't understand cuircuits well, I am very handy with a soldering iron and have oodles of spare parts to play with. The link below is to the datasheet for the ta8215L.
http://wwww.ges.cz/sheet/t/ta8215l.pdf
Being a novice in circuit design I would like a few suggestions for a gainclone like amp, based on these amps, to build for practice and experimentation purposes before I start on my "real"gainclones.
I can follow schems for assembly but don't understand cuircuits well, I am very handy with a soldering iron and have oodles of spare parts to play with. The link below is to the datasheet for the ta8215L.
http://wwww.ges.cz/sheet/t/ta8215l.pdf
Well, since I received no replies(perhaps I was too vague or asking too much), I decided to take matters into my own hands. I built the test circuit provided on the TA8215 data sheet. I assumed that the test circuit is capable of reproducing music, but it only makes music masked by a thick veil of distortion. Was I making an *** out of myself by making this assumption? Can anyone tell me how I can turn this schematic into something that plays music reasonably well? And please, if it's not too much to ask, explain how and why the changes affect the outcome.
Regards,
Bart G.
Regards,
Bart G.
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ta8215 distortion
🙂 hi, reading your post showed how frustrated you are with your amp. bcoz of distortion. have you check the distortion factor of this chip? anyway just dont play it too loud and it would sound ok. it still not satisfied, throw it away and look for other chips that has a better performance of the same wattage. try www.national.com/ they have lots of good chips.🙂
🙂 hi, reading your post showed how frustrated you are with your amp. bcoz of distortion. have you check the distortion factor of this chip? anyway just dont play it too loud and it would sound ok. it still not satisfied, throw it away and look for other chips that has a better performance of the same wattage. try www.national.com/ they have lots of good chips.🙂
Hi,
This is not a very good chip (as chip amps go), and will not deliver a great deal of undistorted power, as mozikluv says.
However, the tone of your post suggests to me that there is more wrong than that.
The manufacturers test circuit can usually be relied upon to deliver practically the best results.
Are both channels the same?
What power supply are you using?
Cheers,
This is not a very good chip (as chip amps go), and will not deliver a great deal of undistorted power, as mozikluv says.
However, the tone of your post suggests to me that there is more wrong than that.
The manufacturers test circuit can usually be relied upon to deliver practically the best results.
Are both channels the same?
What power supply are you using?
Cheers,
Thanks for the response.
I used a bench top power supply, a 6A 12VDC unit. I am not after perfect sound, I was just trying to make some spare parts do something usefull. I was hoping to use this chip amp for my computer/work room, headphones always seem to get in the way. I did put this thing together rather hastily but it visually seems ok, no shorts, all pins accounted for and connected to the right things. I did have a problem with the power standby, I used two aa batteries to provide power to that pin, but something told me that is not the way to do it. I am waiting the arrival of parts for my "real" clone project, I'm sure, because of how well documented it is, I will do just fine in it's construction. I would still like to get this little fella to work though. I am going to strip it down and start over while waiting for parts, maybe I did wire something wrong, I'll also try a different PS, I have some small tformers kicking around.
I used a bench top power supply, a 6A 12VDC unit. I am not after perfect sound, I was just trying to make some spare parts do something usefull. I was hoping to use this chip amp for my computer/work room, headphones always seem to get in the way. I did put this thing together rather hastily but it visually seems ok, no shorts, all pins accounted for and connected to the right things. I did have a problem with the power standby, I used two aa batteries to provide power to that pin, but something told me that is not the way to do it. I am waiting the arrival of parts for my "real" clone project, I'm sure, because of how well documented it is, I will do just fine in it's construction. I would still like to get this little fella to work though. I am going to strip it down and start over while waiting for parts, maybe I did wire something wrong, I'll also try a different PS, I have some small tformers kicking around.
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