Please advise whether someone recommended the replacement ecspecially for this place - I mean linear PS .
Thanks
Especially for this place no, but if TI recommends it as better and upgraded TL2072 then why not to try it ?
Well, if no one tries something new at all, then who will recommend it to you?
Yes but usually they have in mind a sonic performance, we are talking about something completely different - linearity or whatever connected to the POWER SUPPLY, nothing to do with the sound performance.
Cheers
Dear Mizohalen,
I would like to know if I can buy the Studer900 PSU PCB from you or if it is possible to buy the Gerber file?
Andrew
I would like to know if I can buy the Studer900 PSU PCB from you or if it is possible to buy the Gerber file?
Andrew
Hello,
I have been perusing the thread and I have a question...
I believe the red led is used as part of the set point or regulation circuit ?
What would I need to do to swap out to a blue led givin the different voltage drop from red to blue ?
Cheers!
M
I have been perusing the thread and I have a question...
I believe the red led is used as part of the set point or regulation circuit ?
What would I need to do to swap out to a blue led givin the different voltage drop from red to blue ?
Cheers!
M
Hi, I have the latest version of the board with an empty place for R8 and instructions -
R8:
if need DC5V output，pls use AC9V input，R8 install 1K
if need DC9V output，pls use AC12V input，RB install 4.7K
if need DC12V output，pls use AC15V input，RB install 10K
if need DC15V output，pls use AC18V input，RB install 15K
if need DC18V output，pls use AC21V input，RB install 18K
if need DC24V output，pls use AC24V input，RB install 22K
Please consider that
Cheers
R8:
if need DC5V output，pls use AC9V input，R8 install 1K
if need DC9V output，pls use AC12V input，RB install 4.7K
if need DC12V output，pls use AC15V input，RB install 10K
if need DC15V output，pls use AC18V input，RB install 15K
if need DC18V output，pls use AC21V input，RB install 18K
if need DC24V output，pls use AC24V input，RB install 22K
Please consider that
Cheers
It is far from being an LDO regulator, it is more the HDO type so heat is a real life consequence. It is just like that.
Why we need AC 15 V transformer for DC 12 V output
I like to set pcb for 2 A output
Isn't AC 12 V transformer sufficient - that will do 16.2 - 16.5 V dc as Vin unregulated
I like to set pcb for 2 A output
Isn't AC 12 V transformer sufficient - that will do 16.2 - 16.5 V dc as Vin unregulated
as written above, and after lot of tests with several studer900 boards (v1.1, v1.2), you need 7v minimum dropout.
Then: 12V (output) +7V (dropout) + 2.0V (rectifier bridge+avg ripple with good caps) / sqrt(2) = 14.8Vac mini, then 15Vac transformer as minimum. Works well with 15-18 Vac range transformer (and of course large heatsink)
Then: 12V (output) +7V (dropout) + 2.0V (rectifier bridge+avg ripple with good caps) / sqrt(2) = 14.8Vac mini, then 15Vac transformer as minimum. Works well with 15-18 Vac range transformer (and of course large heatsink)
I have the board pre made with the 3 solder pads. I need 21v but it seems not possible with the setup as I received it. How could I make this work? I suppose change one of the 3 LMH resistors? But what value?
Yes, it's absolutely worth getting hold of the OPA2992 and a suitable adapter for this regulator. I mean suitable because I got one with too thick legs which caused a lot of extra work. So make sure the legs are thin enough for your socket or board.
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Good health to all! My name is Vasily. I bought this board on Ali veriya 1.1 resistor 112 on it is marked on 75 ohm instead of 15 ohm as on other boards is this a typo or features of the version of this board? And another question instead of mje15034 what transistor can be put the board is needed to power the DAC. Thank you in advance for your answers..
