Ross trim pot question

[jimbob]

Q. How to set the trimpot?

A. Set the trimpot in the middle, slowly turn it to both sides while letting single notes ring. Leave it in a position where the decay doesn't sound gated.

What I dont understand is that it doesnt seem to make a difference which way I turn it. It still sounds the same. Is it just me? Or could it be a bad trim pot?

[markm]

Play a note and let it fade, listen then for gating and adjust it to where the note fades naturally and there is no gating in the signal.

[jimbob]

Thats the problem. I dont hear any gating at all. Actually sound fine. NOt that that is the problem. I just wanted to make sure it was working right.

[Jay Doyle]

It should make a difference as you turn the trim. Is the effect working otherwise? Do you get a long sustain and plenty of compression with the controls maxxed?

[jimbob]

Yup- getting both the sustain and the compression

[Jay Doyle]

Well..........Um..........I don't know what to say.

If you like the sound of the effect and it appears to be working......... I don't know. I say go with it!

[Roberto]

This is the calibration proceture:   

Input signal 2KHz 5mV 

Turn sustain and output controls CW. Connect test probe to CA3080 pin 6 (out). Adjust bias trim pot for 2.5Vdc in pin 6.   

Turn sustain control CCW. Turn output control CW. As sustain control is turned CW, bias voltage should not vary more than 100mV.

[markm]

This is the calibration proceture:   

Input signal 2KHz 5mV 

Turn sustain and output controls CW. Connect test probe to CA3080 pin 6 (out). Adjust bias trim pot for 2.5Vdc in pin 6.   

Turn sustain control CCW. Turn output control CW. As sustain control is turned CW, bias voltage should not vary more than 100mV.

Interesting.
First I've heard of a non-by ear setup.
Thanks!