|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
In Reply to: diode dampener bias comparo posted by larry moore on October 31, 2001 at 06:22:17:
I never considered damper diodes...great idea! That would really give you a slow start on the output tube.I noticed a huge reduction in hum using a rectifier tube (DC heated) on the cathode. I also noticed a loss of low end. It's also strange that the tube, a 2A3, came up to the correct current draw but the voltage drop across the rectifier was not what I expected. I was shooting for 50 volts and measured only 35.
In your case, I wonder about the changes the Hexfreds have made. Could it be the sound of them in the power supply or the additional B+ that contributes to the change in tone? Only one way to find out-keep the dampers in the PS and then do the comparison with another pair on the cathodes.
Tom
Follow Ups:
If ya think about it, it really shouldn't matter where the vacuum diode is.
Nah.
Frankly there is not enough of a change to make a difference.
Tried this before, no difference.
This post is made possible by the generous support of people like you and our sponsors: