DIY TDA1541A PCB "D3"

[RobA]

markos4553 x1
BarG01 x1
sthcoaster x2
av-trouvaille x1 (possibly more)
kenlaumm x 2
Si_jopie0382 x 2
pistollero x 1
nick696 x 1
leejh x 1
ekidnah09 x 1
wlowes x 1
Greg Stewart x 1
Ben Mah x 1
dabore84 x 1
RobA x 1

 

[batteryman]

I’m interested in a parallel/balanced version if you decide to follow that path. 🙂

I have a few spare balanced 1541 dac pcbs which are surplus.

Requires -18-24v, and +- 8-12V for the onboard regulators of your choice.

ECDesigns low frequency dem clocking is possible as the pcb is designed for the 100uf dem caps (Nichicon UKL ultra low leakage recommended).

Separate inputs and outputs.

Please PM me if interested.

 

[Harolda]

markos4553 x1
BarG01 x1
sthcoaster x2
av-trouvaille x1 (possibly more)
kenlaumm x 2
Si_jopie0382 x 2
pistollero x 1
nick696 x 1
leejh x 1
ekidnah09 x 1
wlowes x 1
Greg Stewart x 1
Ben Mah x 1
dabore84 x 1
RobA x 1
Harolda x 2

 

[ernesternest]

markos4553 x1

BarG01 x1

sthcoaster x2

av-trouvaille x1 (possibly more)

kenlaumm x 2

Si_jopie0382 x 2

pistollero x 1

nick696 x 1

leejh x 1

ekidnah09 x 1

wlowes x 1

Greg Stewart x 1

Ben Mah x 1

dabore84 x 1

RobA x 1

Harolda x 2

Ernesternest x 1

 

[sachu888]

Any genuine source for TDA151 chip?

Regards
Sachin

 

[sampsonite]

markos4553 x1

BarG01 x1

sthcoaster x2

av-trouvaille x1 (possibly more)

kenlaumm x 2

Si_jopie0382 x 2

pistollero x 1

nick696 x 1

leejh x 1

ekidnah09 x 1

wlowes x 1

Greg Stewart x 1

Ben Mah x 1

dabore84 x 1

RobA x 1

Harolda x 2

Ernesternest x 1

sampsonite x 2

 

[koldby]

Any genuine source for TDA151 chip?

Regards
Sachin

Old CD players 😀

 

[Stixx]

Any genuine source for TDA151 chip?

I have a few, both pulls from old players and the ones I collected.
PM me when interested.

 

[Sonicmasala]

Sonicmasala x 1

 

[Stixx]

markos4553 x1
BarG01 x1
sthcoaster x2
av-trouvaille x1 (possibly more)
kenlaumm x 2
Si_jopie0382 x 2
pistollero x 1
nick696 x 1
leejh x 1
ekidnah09 x 1
wlowes x 1
Greg Stewart x 1
Ben Mah x 1
dabore84 x 1
RobA x 1
Harolda x 2
Ernesternest x 1
sampsonite x 2
Sonicmasala x 1

 

[bigturtle]

markos4553 x1
BarG01 x1
sthcoaster x2
av-trouvaille x1 (possibly more)
kenlaumm x 2
Si_jopie0382 x 2
pistollero x 1
nick696 x 1
leejh x 1
ekidnah09 x 1
wlowes x 1
Greg Stewart x 1
Ben Mah x 1
dabore84 x 1
RobA x 1
bigturle 2x

 

[ernesternest]

Big turtle, you have closed out a few fellow DIYer from the list. Would mind adding them again?

Cheers

 

[bigturtle]

hey ernesternest, I am sorry, I didn´t want to do that, how can i add the other users again?

 

[ryanj]

markos4553 x1
BarG01 x1
sthcoaster x2
av-trouvaille x1 (possibly more)
kenlaumm x 2
Si_jopie0382 x 2
pistollero x 1
nick696 x 1
leejh x 1
ekidnah09 x 1
wlowes x 1
Greg Stewart x 1
Ben Mah x 1
dabore84 x 1
RobA x 1
Harolda x 2
Ernesternest x 1
sampsonite x 2
Sonicmasala x 1
bigturtle x 2

 

[Sven257]

HI Koldby,

Thanks for sharing your experience in post #18

I'm curious about what BJT I/V Converter you like better than the single MOSFET and other I/V converters??

Thanks Peter

 

[koldby]

HI Koldby,

Thanks for sharing your experience in post #18

I'm curious about what BJT I/V Converter you like better than the single MOSFET and other I/V converters??

Thanks Peter

Hi Sven257
It is actually one of my own design. It is a modified version of one I used for TDA1543. Discrete , no feedback and very low input impedance. I have attached the TDA1543 version so you can see the idea..

 

[cristianr]

markos4553 x1
BarG01 x1
sthcoaster x2
av-trouvaille x1 (possibly more)
kenlaumm x 2
Si_jopie0382 x 2
pistollero x 1
nick696 x 1
leejh x 1
ekidnah09 x 1
wlowes x 1
Greg Stewart x 1
Ben Mah x 1
dabore84 x 1
RobA x 1
Harolda x 2
Ernesternest x 1
sampsonite x 2
Sonicmasala x 1
bigturtle x 2
cristianr x 1

 

[Sven257]

Thank you Koldby,
Very nice, I might give it try now that I am getting back into the audio hobby again...

 

[koldby]

Thank you Koldby,
Very nice, I might give it try now that I am getting back into the audio hobby again...

Ur welcome, but remember to modify it. The two red LED's need to be replaced by a BC550 (in each channel) with collector and basis tied together and connected to the resistor and basis junction and emitter to ground. This is to ensure almost 0 VDC voltage @ the dac output from TDA1541A. TDA1543 needs DC voltage @ its output, hence the two LED's.

Place these new BC550 close to the Q3 and Q1 and preferably with thermal contact.

 

[Sven257]

Thanks Koldby,
For letting me Know what to modify, because it is the TDA1541A that I will be using.