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

---

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

---

[ Alert Moderator ]

---

Re: Selecting Output Transformers for WOT Line Preamp

Posted by Snoopyma (A) on June 29, 2005 at 23:34:00

In Reply to: Re: Selecting Output Transformers for WOT Line Preamp posted by KevinC on June 28, 2005 at 20:26:23:

Thank you for your reply and suggestion.

I am using a 97db horn speaker system, so inadequate gain is not a problem. On the contrary, as I am using a transformer as the volume control of my preamp. too much gain is a problem particularly for some CDs with higher output.

As the LL1689 does not have the frequency specification, can you give me some hints on the predicted freq. response in the case of WE437a running at 22ma using LL1689/18ma 18:2 connection that you recommend?

To me, LL1689 has the advantage of having 18:4, 18:2 and 18:1 connection alternatives so that I can play around to choose the most suitable one. Is there a difference in terms of freq. response for the 3 connection options?

For specifying the gap, I have the false common belief that running the tube at a current higher than the gapped one will saturate the core and deteriorate the performance at all levels, won't it?

What is the loss of gapping the cores at higher current assuming the same core and coil in terms of technical performance and sound quality? Could you elaborate.

Thanks in advance.

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

VH Audio

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2025, Audio Asylum, all rights reserved ]

---

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

---