The cinch sockets and the source selector rotary switch (Lorlin) as well as the potentiometer for volume control (Alps) are to be replaced by high-quality versions in a diy tube preamp device (Shindo-clone). Actually an easy task.
But because of the potentiometer, the shielding plate must have a recess, because the new one is longer in relation to the dimension of the installation depth. This requires complete dismantling, as the main boards are mounted on this plate.
The old potentiometer (model-No. ACW-136-A, black colored) looks the same than the good known RK27 series (blue colored - go to the attachments).
The new potentiometer is from NOBLE special made for Audio Note - go to
https://www.hificollective.co.uk/potentiometers/audio-note-100k-potentiometer.html
Could it be that the black ACW version from Alps, that is still installed, is a higher quality version such as the well-known blue RK27 series and in the same quality class than the mentioned one from Noble ?
If yes, I can save a lot of time.
Thanks for an advice.
But because of the potentiometer, the shielding plate must have a recess, because the new one is longer in relation to the dimension of the installation depth. This requires complete dismantling, as the main boards are mounted on this plate.
The old potentiometer (model-No. ACW-136-A, black colored) looks the same than the good known RK27 series (blue colored - go to the attachments).
The new potentiometer is from NOBLE special made for Audio Note - go to
https://www.hificollective.co.uk/potentiometers/audio-note-100k-potentiometer.html
Could it be that the black ACW version from Alps, that is still installed, is a higher quality version such as the well-known blue RK27 series and in the same quality class than the mentioned one from Noble ?
If yes, I can save a lot of time.
Thanks for an advice.
