Home » Audio » Thermionic Emissions » New Project Coming for Diyers who like Triodes
New Project Coming for Diyers who like Triodes [message #88786] Fri, 07 September 2018 16:46 Go to next message
gofar99 is currently offline  gofar99
Messages: 1342
Registered: May 2010
Location: Southern Arizona
Illuminati (3rd Degree)
Hi Everyone, I'm in the building process for a class A push-pull triode amp using 6AS7s. Target is 10 watts. It might deliver as much as 14-15 though. I'm waiting on transformers right now. I hope to post the info in about 4-6 weeks. I hear from good sources that the 6AS7 is a really nice tube and makes really nice sounding amps. We shall see. This particular amp is actually a hybrid with a digital front end and remote control. It does have the option to operate directly from a line stage though.

For those of you not familiar with the tube it is a dual triode. Low (under 250) voltage, high current (about 125ma each triode) low gain (2 ugh!) and has a dissipation of 13 watts per triode octal tube. Definitely a different thing for me since most of my designs are running about 450VDC.


Good Listening
Bruce
Re: New Project Coming for Diyers who like Triodes [message #88787 is a reply to message #88786] Fri, 07 September 2018 17:12 Go to previous messageGo to next message
Wayne Parham is currently online  Wayne Parham
Messages: 17251
Registered: January 2001
Illuminati (33rd Degree)

Wow, Bruce, that's exciting news! Can't wait to see your next post about this new design!

Re: New Project Coming for Diyers who like Triodes [message #88796 is a reply to message #88786] Sat, 08 September 2018 14:13 Go to previous messageGo to next message
johnnycamp5 is currently offline  johnnycamp5
Messages: 217
Registered: June 2015
Location: NJ
Master
Awesome!

So its SRPP....like your other amplifier designs?

I built your mono blocks "kt88's" and they serve as my everyday amps. I've never had anything better for my taste.

All my other amps sit on standby lol.
Re: New Project Coming for Diyers who like Triodes [message #88798 is a reply to message #88796] Sat, 08 September 2018 16:01 Go to previous message
gofar99 is currently offline  gofar99
Messages: 1342
Registered: May 2010
Location: Southern Arizona
Illuminati (3rd Degree)
Hi, Yes it does use a SRPP driver. I'm glad you like the KT88 amps. The configuration has proved quite well for over 10 years now. They are not the most powerful amps as all class A U/L amps are pretty inefficient, but IMO they sound far better than many others that have different designs and are seeking more power output.

Good Listening
Bruce
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