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Chip Amps Amplifiers based on integrated circuits

Tube 6N3 Preamp TDA7294 Power Amplifier Kit DIY 80W+80W
Tube 6N3 Preamp TDA7294 Power Amplifier Kit DIY 80W+80W
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Old 28th February 2012, 09:53 PM   #1
simenms is offline simenms  Norway
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Default Tube 6N3 Preamp TDA7294 Power Amplifier Kit DIY 80W+80W

I have just finnished this kit from E-bay:

Tube 6N3 Preamp TDA7294 Power Amplifier Kit DIY 80W+80W | eBay

it has one 24v-0-24v input and one ac 9-12v input.. do i need two transformers or could i only use the 24v input?
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Old 28th February 2012, 11:06 PM   #2
Minion is offline Minion  Canada
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Location: Cowican Bay , vancouver island
If it says a 24v-0v-24v AND 9-12v then that is what is needs , it doesn"t say 24v-0v-24v and 24v ........

The 24v-0v-24v is used for the Poweramp and the Plate of the Tube , the 9v-12v is used for the heaters which is regulated to 6v with a lm7806 ....... if you use 24v you will fry the regulator .......

Get a transformer with an extra 9v-12v winding or use a seperate small transformer or even an AC wallmart ......
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Old 28th February 2012, 11:45 PM   #3
simenms is offline simenms  Norway
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ok.. thanks!
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Old 16th March 2012, 11:48 PM   #4
han6man is offline han6man
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are you have circuit ore assembly manual of this board?
i bought one & package without them
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Old 17th March 2012, 08:13 AM   #5
simenms is offline simenms  Norway
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yes, got it in the package.. i managed to kill my amp chips with the wrong voltage.. but new ones are soon here... let me know if you need the schematics..
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Old 18th March 2012, 07:12 AM   #6
han6man is offline han6man
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i am very nead )
you kill amp chips with the wrong voltage( +- or Vmax)?
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Old 18th March 2012, 08:54 AM   #7
han6man is offline han6man
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if you can to email plz
han6man & gmail.com
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Old 20th March 2012, 09:35 PM   #8
simenms is offline simenms  Norway
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vmax killed it.. there is no +/- since it is ac..
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Old 14th September 2012, 06:06 AM   #9
Gost22 is offline Gost22  Bolivia
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Lightbulb Schematics for hybrid amplifiers

Quote:
Originally Posted by simenms View Post
I have just finnished this kit from E-bay:

Tube 6N3 Preamp TDA7294 Power Amplifier Kit DIY 80W+80W | eBay

it has one 24v-0-24v input and one ac 9-12v input.. do i need two transformers or could i only use the 24v input?
Hi simenms!
Is the schematic (circuit), you can view this hybrid amplifier?
thank you
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Old 6th August 2013, 11:50 AM   #10
Inprogress is offline Inprogress  South Africa
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How did the sound turn out on this kit? Looking at buying one.
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