a bit o help with powertrans tda7294 and 6n11 buffer

[trigger]

i need power supply for theses,
24v ac 1.5a
12v ac 2a
can anyone share link for a power supply for sale,

i have $18to spend but if need be...





i just purchased a tda7294 amp + ac-dc rectifier , with 6n11 buffer

ok i need help finding a good power supply, am a noob, so.. any help would be helpful


the seller suggested use AC24V (about 1A-1.5A),,,,, after rectifier the DC is 24V*1.414=+-34V

and 6N11 preamp use 12V (1.5A-2A)



tda amp specs
Input voltageDC ±25V--±38V

Output power:68W+68W

Output impedance:4-8ohm

ac-dc rectifier specs

input voltage:Max AC 33V

Output voltage: ≈ Input voltage X 1.414

pre specs

Input Voltage: AC 12V

Input impedance: 1 M Ohm

Output impedance: > 5K Ohm

Input sensitivity: 0-5V

Gain:0dB

Frequency response: 10Hz - 60KHz +/- 0.25 dB

Total harmonic distortion: > 0.0025%

SNR > 100dB

　

i have a transformer in parts box, 10.2-0-10.2 vac will this make the cut?, along with 12vac wall wart for pre?

any help is much appreciated.

[trigger]

anything?

[spgjmf]

Originally Posted by trigger

i need power supply for theses,
24v ac 1.5a
12v ac 2a
can anyone share link for a power supply for sale,

i have $18to spend but if need be...





i just purchased a tda7294 amp + ac-dc rectifier , with 6n11 buffer

ok i need help finding a good power supply, am a noob, so.. any help would be helpful


the seller suggested use AC24V (about 1A-1.5A),,,,, after rectifier the DC is 24V*1.414=+-34V

and 6N11 preamp use 12V (1.5A-2A)



tda amp specs
Input voltageDC ±25V--±38V

Output power:68W+68W

Output impedance:4-8ohm

ac-dc rectifier specs

input voltage:Max AC 33V

Output voltage: ≈ Input voltage X 1.414

pre specs

Input Voltage: AC 12V

Input impedance: 1 M Ohm

Output impedance: > 5K Ohm

Input sensitivity: 0-5V

Gain:0dB

Frequency response: 10Hz - 60KHz +/- 0.25 dB

Total harmonic distortion: > 0.0025%

SNR > 100dB

　

i have a transformer in parts box, 10.2-0-10.2 vac will this make the cut?, along with 12vac wall wart for pre?

any help is much appreciated.

looks to me like you need a 12v transformer for the buffer 1 amp should be fine.

for the amps, a 24-0-24 ( or 48vct) transformer - 2 to 4 amps ( at least). 18-018 up to 24-0-24 would be ok. The 0 is for the center tap. lookup center tap transformers to learn more.

I have this one for a chip amp -


Chia Yu Co Ltd
Input: 2 X 120Vac 50-60Hz 3" Dia X 1 1/2" Tall
Output 42Vct 21V- 0 - 21V 80VA

frm apexjr. miscellaneous.html

teh 12v buffer tranny can be had anywere - wall wart, old cd player, even radio shack sells them. alos check jameco for stuff.

good luck.

Jeff

[trigger]

i ended up finding a 1.5 a 12ac wall wart, it seems buzzie maybe an upgrade?