Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: bruno on October 05, 2025, 03:57:44 pm

Title: Can I get a single output out of a long tail inverter?
Post by: bruno on October 05, 2025, 03:57:44 pm
A stupid question... a phase inverter gives us two output signals out of phase. Is it possible to get a single signal out of it instead of two?


I know it's possible to combine those two signals into a single one with a triode amplifier, is it possible to do it without another extra triode?


Thanks
Title: Re: Can I get a single output out of a long tail inverter?
Post by: shooter on October 05, 2025, 04:13:58 pm
not sure your end-game since 2 out of phase signal cancel each other...sorta.
Title: Re: Can I get a single output out of a long tail inverter?
Post by: Willabe on October 05, 2025, 04:34:46 pm
A stupid question... a phase inverter gives us two output signals out of phase. Is it possible to get a single signal out of it instead of two?


I know it's possible to combine those two signals into a single one with a triode amplifier, is it possible to do it without another extra triode?

Why do you want to do this?
Title: Re: Can I get a single output out of a long tail inverter?
Post by: SEL49 on October 05, 2025, 04:48:03 pm
A stupid question... a phase inverter gives us two output signals out of phase. Is it possible to get a single signal out of it instead of two?
Sure. Simply connect one of the signals and don't use the other one.
Title: Re: Can I get a single output out of a long tail inverter?
Post by: HotBluePlates on October 06, 2025, 06:04:51 pm
A stupid question... a phase inverter gives us two output signals out of phase. Is it possible to get a single signal out of it instead of two?
Sure. Simply connect one of the signals and don't use the other one.

The only downside to note is you might have half the signal-size you'd otherwise get if you just used a "triode gain stage."