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

---

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

---

[ Alert Moderator ]

---

Swapped Output Tubes

Posted by JKT (A) on June 17, 2024 at 13:46:16

In Reply to: Encountered a Problem posted by JKT on June 17, 2024 at 13:22:24:

After letting the tubes cool down, I swapped the output tubes left to right. Now the left channel is running higher at 46mA and the right lower at 42mA. Not the 55mA 35mA difference there was before. Weird.

The stand-by switch I included works great. Drops the B+ to 12.5V when engaged. It's part of the FET cap. multiplier following the main reservoir cap. Also, when the amp is first turned on the amp remains in stand-by for 30s and the B+ comes up without a pop.


"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:

Parts Connexion

---

[ 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 ]

---