K&K Audio / Lundahl Transformers Welcome! Need support, you got it. Or share youe ideas and experiences.

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ K&K Audio / Lundahl Transformers ]

---

[ Alert Moderator ]

---

RE: Ess9018, Diff. Pair and your CCS...will this work ?

Posted by JKT (A) on February 11, 2017 at 12:18:27

In Reply to: Ess9018, Diff. Pair and your CCS...will this work ? posted by multiblitz on February 11, 2017 at 08:31:55:

Looking at the schematic you would need to build a negative PS (about -20V to -30V) to provide enough voltage margin to operate a cascode MOSFET current source. Although these CCSs will operate at 5mA current they perform better at currents greater than 10mA. In my experience a BJT cascode using BC549C transistors will give greater performance at currents less than 10mA. This would still entail building a negative PS.


"It is better to remain silent and thought a fool, then speak and remove all doubt." A. Lincoln

This post is made possible by the generous support of people like you and our sponsors:

Signature Sound

[ Signature Sound Lounge ]

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---