DAC21 tube in a pre phono - diyAudio
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Old 5th July 2012, 09:23 PM   #1
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Join Date: Nov 2010
Location: São Paulo City
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Default DAC21 tube in a pre phono

I was thinking of building a phono pre using the DAC21 tube.
It is a DHT triode with low current 1.5 V filaments ( batteries ?)
It has only mu=20 and works with 120 V or less on anode.
Seams to have low distortion and low noise.

Anybod tryed it ?

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Old 7th June 2015, 03:16 PM   #2
aldovan is offline aldovan  Brazil
diyAudio Member
Join Date: Jul 2005
Location: Curitiba
Default Low gain


How are you ?
The gain is low for a phono stage.
The correct is use a triode with high gain, or you will need three stages for obtain the need amplification.

Good luck

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