Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Cree on October 12, 2020, 05:32:30 pm

Title: Elevated Heaters
Post by: Cree on October 12, 2020, 05:32:30 pm

I did a search of this topic But did not find an answer that I was wanting. When do you elevate the heaters or why do you elevate them?? Do it on every amp you build or only Hi gain PP out put. Should you elevate the heaters on any build even if its low watt triode output, Single ended only or on Push Pull Hi gain?? Sorry for the double statement, trying to clarify myself.

Title: Re: Elevated Heaters
Post by: tubeswell on October 12, 2020, 07:07:08 pm

See section under ‘Heater Elevation’ on this link:


http://www.valvewizard.co.uk/heater.html (http://www.valvewizard.co.uk/heater.html)

Title: Re: Elevated Heaters
Post by: trobbins on October 12, 2020, 08:22:09 pm

More background detail is also provided in link - in particular pages 3-7:
https://www.dalmura.com.au/static/Hum%20article.pdf (https://www.dalmura.com.au/static/Hum%20article.pdf)

Title: Re: Elevated Heaters
Post by: Cree on October 13, 2020, 01:42:00 pm

Thank you Guys for the links. I have been to the Wizards site many times. The other link is new to me. Looks like I will incorporate this into my next project.