Gated beam discriminator "amplifier"

AmpKiller66 · 10th March 2007, 03:10 AM

Any ideas on how I could use a gated beam discriminator tube (6BN6, etc.) to "amplify" a guitar signal? High distortion would not be an issue, in fact, it is desired.

astouffer · 10th March 2007, 03:25 PM

I played with the 6BN6 a while ago (before I knew what they were used for) and found it can amplify well. It was connected like a normal pentode preamp but the higher the plate voltage the lower the output. Can't recall any part values right now.

aletheian · 10th March 2007, 05:15 PM

Heck yes. Peter Millet used that setup at the triode festival to bens the transfer function to demonstrate odd vs even order harmonic distortion sound differences. The schematic is on his site. Metasonix also uses one for a little synth distortion box.

10th March 2007, 03:10 AM	#1
AmpKiller66 diyAudio Member Join Date: Mar 2007 Location: Middle of Nowhere	Gated beam discriminator "amplifier" Any ideas on how I could use a gated beam discriminator tube (6BN6, etc.) to "amplify" a guitar signal? High distortion would not be an issue, in fact, it is desired. __________________ In the immortal words of Socrates, "I drank what!?"

10th March 2007, 05:15 PM	#3
aletheian diyAudio Member Join Date: Apr 2004 Location: Philly	Heck yes. Peter Millet used that setup at the triode festival to bens the transfer function to demonstrate odd vs even order harmonic distortion sound differences. The schematic is on his site. Metasonix also uses one for a little synth distortion box. __________________ Heghlu'meH QaQ jajvam!

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10th March 2007, 03:25 PM	#2
astouffer diyAudio Member Join Date: Jun 2004 Location: Pittsburgh, crumbling wasteland	I played with the 6BN6 a while ago (before I knew what they were used for) and found it can amplify well. It was connected like a normal pentode preamp but the higher the plate voltage the lower the output. Can't recall any part values right now.

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