i have a small stereo i am working on for a friend, i need a "TBA 820P"
audio chip...its low power, 5.5 watts i think.
cannot find a cross with NTE , does anyone have such a chip or know of a substitute ? i cannot even find this chip onthe net. i am supposing its obselete. if push comes to shove, i might can rewire it for another audio amp.
any help is appreciated, thanks
looking for audio chip or a substitute
dac, let me introduce you to my good friend, Mr Findchips.com http://www.findchips.com/
when I asked him nicely he said to talk to Mr Jameco
http://www.jameco.com/webapp/wcs/stores ... Id=1415937
when I asked him nicely he said to talk to Mr Jameco
http://www.jameco.com/webapp/wcs/stores ... Id=1415937
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Dac
Your TDA 820P (P for plastic) is listed as an ECG1117. They call it out as a 2 watt audio power amp in a 14 DIP package. ( I have no idea how they get 2 watts out of that unless its run in class 'B' mode)
The bad news - ECG is now defunct!
The good news- NTE picked up almost all of their tooling.
In the past, I have found they used the same numbering code. All you had to do was substitute "NTE" for "ECG".
Call up NTE's website and search.
Also, I have the pinout if you need it.
Your TDA 820P (P for plastic) is listed as an ECG1117. They call it out as a 2 watt audio power amp in a 14 DIP package. ( I have no idea how they get 2 watts out of that unless its run in class 'B' mode)
The bad news - ECG is now defunct!
The good news- NTE picked up almost all of their tooling.
In the past, I have found they used the same numbering code. All you had to do was substitute "NTE" for "ECG".
Call up NTE's website and search.
Also, I have the pinout if you need it.
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Find Chips!
Philba,
I used your good friend, was able to find 2 chips that I was looking for.
Thank you
I used your good friend, was able to find 2 chips that I was looking for.
Thank you
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Sad to say, it is an obsolete chip now and it looks as NTE no longer carries it in their current listings. They are available at a half dozen sites if you buy boxcar quantitys. Sometimes these show up in the darndest places though - but it takes a lot of determined web searching. I have some additional info on this if you need it - but shows no typical applications. Good Hunting!
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National makes quite a few audio power chips.Right off the top of my head is the LM 380 - a lo power 14DIP audio chip, but there may be something close to what you need on their site. In the past I have wired sockets into the old board to fit the new chip in these situations. If you have the room ,you can make it work.
- dacflyer
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ya theres pleanty of room for a mod if need be as you can see inthe foto i submitted , i have a bunch of audio chips..tons of chips in small manilla envelopes..i bought them long time ago..may have been from a old repair shop...most of them i have to cross to know what they are..but most are of audio or tv / radio related use..
You can get them here:
http://www.sgidirect.com/search.html?part=TBA820P
Several manufacturers of them, so it appears.
The NTEPARTS.COM web site has several of these listed as well. See this page:
http://www.nteparts.com/data/85076.php
Scroll down. You should see TBA820Q, TBA820. and TBA820 14 Pin DIP items listed. Shipping is $5 MINIMUM.
Here is a whole bunch of cross reference information for you as well
http://www.loadparts.com/Catalog/T/876.htm
http://www.sgidirect.com/search.html?part=TBA820P
Several manufacturers of them, so it appears.
The NTEPARTS.COM web site has several of these listed as well. See this page:
http://www.nteparts.com/data/85076.php
Scroll down. You should see TBA820Q, TBA820. and TBA820 14 Pin DIP items listed. Shipping is $5 MINIMUM.
Here is a whole bunch of cross reference information for you as well
http://www.loadparts.com/Catalog/T/876.htm
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can't find chip?
You can get twice the power out of a chip by bridging it! But one will have to be 180* out of phase. But you will be using twice the chips for each channel.
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