Putting LO2567 in 1073

[dreamix]

Anything to think about wiring a LO2567 instead of 1163 in 1073, or is it just swapable

 

[neve2254e]

Hi there. The 1073 requires a Gapped output transformer to work. That is the LO1166. The 1166 can take DC and the LO2567 is ungapped and can NOT take DC.

You Mentioned a 1163? Did you mean a 1166?

Hope this helps
Eric

 

[dreamix]

I putted it in, it works nice, im sure I have to ditch 48v tho becase of the no gapped ?

 

[ruffrecords]

The LO2567 was designed for use with the BA440 discreet op amp and is capacitively coupled. It is not suitable for use on a 1073.

Cheers

Ian

 

[dreamix]

So what are the drawbacks from using lo2567 instead, I cant really hear any difference

 

[ruffrecords]

So what are the drawbacks from using lo2567 instead, I cant really hear any difference

With the 1073 output stage you have to set up the standing current in the 2N3055 transistor in the class A output stage to the correct value - somewhere between 50mA and 70mA if memory serves. This level of current will saturate the core of the LO2567, its inductance will drop to nearly zero and you will get no output. The fact that you do get an output indicates that either the 2N3055 standing current is far too low which means the headroom will be seriously compromised, or it means the LO2567 you have is actually a gapped transformer.

Cheers

Ian

 

[lukas]

...it was already.