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November 26, 2021, 04:06:00 PM

Author Topic: 12SX7 front end  (Read 1355 times)

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Offline Ritchie

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12SX7 front end
« on: October 13, 2013, 02:34:34 PM »
Has anyone tried the 12sx7? You would need a 12v heater supply, but the 12v octals might be quieter than 6v  with ac heater supply due to the lower current. Would love to try a 12sx7 but I am not set up for octals and don't want to go thru the trouble if it is not much better than the 12au7.
Would the 12sx7 work with the speedball parameters?

Thanks,
Ritchie
 
Ritchie M.

crack/speedball as preamp,linn lp12 w/radikal/keel/urika phono, linn majik 4100 active monoblocks,linn majik isobarik speakers(active).

Offline Paul Birkeland

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Re: 12SX7 front end
« Reply #1 on: October 13, 2013, 04:39:26 PM »
the 12v octals might be quieter than 6v  with ac heater supply due to the lower current.

It tends to be the opposite actually, with directly heated tubes at least. 

The 12SX7 looks a lot like a 12SN7, with 12V on the heater, it should work nicely.
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Ritchie

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Re: 12SX7 front end
« Reply #2 on: October 13, 2013, 06:50:16 PM »
Thanks, probably stick with the 12au7, enjoy tube rolling once in awhile.
It also sounds very good.
Ritchie M.

crack/speedball as preamp,linn lp12 w/radikal/keel/urika phono, linn majik 4100 active monoblocks,linn majik isobarik speakers(active).