Pro Audio Design Forum

WTF. Here is what I get from the two links:

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Great gear.
Does that mean there is no point anymore for us, DIYers, to design and build linear power supplies ?

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I overlooked the non linear conditioning asked on Ec s. In my quick and dirty wave handing solution I was aware of some conditioning but thought it was going to be linear, easily implemented with op amps. I need a close look at the actual gain(Ec) transfer function to fully work out the panning usin...

The THAT VCA: I recall it has two control inputs.
They are both linear giving Db gains. One input goes increasing the gain, the other one goes decreasing the gain.
If this is right a single linear pot could feed the 4 VCAs control inputs to achieve the wanted result.

I imagine there could be more subtle transistor parameters asking for matching.
Early voltage, capacitance,

Very interesting.

What about transistor matching, distortion wise ?

In the conventional configuration, you do not need any matching. The important point, then, is the leakage resistor of the capacitor. This resistor gives the DC gain that comes in the residual error. ( A perfect integrator gives a zero error, because it has infinite gain ). One can calculate the err...

Pdf:
https://www.ap.com/download/designing-f ... ow-thdn-2/

Amazing. My new tenant moved in jully 1. I was called this morning jully 5 for a toilet flush not working right, the push button doesn't pop back anymore. Was working perfectly right on jully 1 and days before while I was there fixing stuff. Turned out, it was a broken plastic bit next to another on...