Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders.

---

[ Follow Ups ] Thread: [ Display  All  Email ] [ Tube DIY Asylum ]

---

[ Alert Moderator ]

---

Re: Interstages with very high inductance

Posted by SomeJoe (A) on April 1, 2007 at 11:47:37

In Reply to: Re: Interstages with very high inductance posted by mqracing on April 1, 2007 at 09:53:57:

Thank you Mike for the thorough explanations.

Right now the design does use two 260H anode chokes; I'll test with a CCS soon. Coupling is teflon cap. Sounds good, but i prefer transformer coupling which seems more dynamic. Adding a transformer in the existing case is impossible, but i might try in my next design. One question i have, does the leakage C and inductances of anode chokes + interstage + mosfet tail CCS might induce HF resonances?

So far the specs i was thinking of are 50K:50K 600H CT primary, CT or dual winding secondary (2x 12K5 ?), allowance for maybe 5mA or less unbalanced current in the windings to account for less than perfect tube matching. The output stage is sitting on a CCS too, so there won't be no bias current in the secondary. Since you are quite the expert in the matter, i'd ask you if such a unit would be extremely costly? If you prefer answering this last point privately, my email is jorisdallaire AT yahoo DOT ca

Thanks again for your time.
Joris

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

Kimber Kable

---

[ 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 ]

---