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help !! PTT2s Line stage

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costa23

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Joined 2008
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I've pair of RT PTT2s, and planning to build a line stage.
Can anyone tell me the scheme with minimun humming issue ?
I've looked at DHT Rob BA line stage with anode choke, TRIODE DIck CLeo V with CCS OD3, and ALEX DIY. web use simple RC load.
But I think I will do RC load or CCS, cause there is no Good anode choke here in Indonesia.

My friend has build line stage with ValVo BA, and It was humming .
Finally he tried Lundahl LOT and the hum disapear.

PLease help me. Which one shoul Ibuild ?

Thanks a lot.


Hemdra
 
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