I have a few TDA7293 amp chips in my spares box.
Are they worth playing with ? Not for hi-fi use I hasten to add.
http://pdf1.alldatasheet.com/datasheet- ... A7293.html
There are PCBs for them on e-bay quite cheap.
TDA7293 chip amps
- pre65
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#1 TDA7293 chip amps
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
#2
Hi Phil,
this is a nice little chip amp if used properly and it can be used in parallel to drive complex loads successfully.
Here is a brief page about how to use it http://www.rotgradpsi.de/mc/amp51/amp51 ... tfall.html
I've heard this run off against the popular LM3886. It isn't going to match the 833 but it is a decent little amp when used properly...
J
this is a nice little chip amp if used properly and it can be used in parallel to drive complex loads successfully.
Here is a brief page about how to use it http://www.rotgradpsi.de/mc/amp51/amp51 ... tfall.html
I've heard this run off against the popular LM3886. It isn't going to match the 833 but it is a decent little amp when used properly...
J
#3 Re: TDA7293 chip amps
Go one then Philip, I'll bite. What do you want to use them forpre65 wrote:Not for hi-fi use I hasten to add.
Brian
- pre65
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#4
I was thinking of an amp for the television, as the built in speakers are crap, with a capital K.
But the problem is, a decent toroid for the PSU would probably cost more than a cheapo stereo amp off e-bay.
Now where oh where is my old T amp ?
But the problem is, a decent toroid for the PSU would probably cost more than a cheapo stereo amp off e-bay.
Now where oh where is my old T amp ?
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
#5
I suppose it depends how much power you need. The chip will work down to +/-12V which will give nearly 9W into 8 ohms. A 12-0-12 transformer will give more and shouldn't be too expensive. Why toroid? An EI core will be cheaper; the whole PSU should be less than £20 even if you had to buy everything new.
- pre65
- Amstrad Tower of Power
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- Joined: Wed Aug 22, 2007 11:13 pm
- Location: North Essex/Suffolk border.
#6
In that case my 0-18v + 0-18v toroid will do.
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)