This should cause controversy.
Quote.
"The PX25 is directly heated and feeding the filament to minimise hum is not straight forward. Williamson, who worked for M-OV and then Ferranti, indicated that the modern indirectly heated KT66 when strapped as a triode was almost identical in performance to the PX25."
PX25 / KT66
- pre65
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#1 PX25 / KT66
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
- Paul Barker
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#2
My test results.
One of my KT66's
One of my Balloon PX25's
One of my 4P1Ls
What the Chinese come up with when asked to make a PX25
One of my KT66's
One of my Balloon PX25's
One of my 4P1Ls
What the Chinese come up with when asked to make a PX25
"Two things are infinite, the universe and human stupidity, and I am not yet completely sure about the universe." – Albert Einstein
#3 Re: PX25 / KT66
would it be fair to say that it's only controversial if you substitute the word performance for 'sound quality'?pre65 wrote:This should cause controversy.
Quote.
"The PX25 is directly heated and feeding the filament to minimise hum is not straight forward. Williamson, who worked for M-OV and then Ferranti, indicated that the modern indirectly heated KT66 when strapped as a triode was almost identical in performance to the PX25."
There's nowhere you can be that isn't where you're meant to be
- IslandPink
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#4
Just what I was thinking .
Now - here's something someone should bring to Owston next time - a PSE 4P1L amp. I know Andy Evans ( on DIY Audio ) is very happy indeed with his one.
Now - here's something someone should bring to Owston next time - a PSE 4P1L amp. I know Andy Evans ( on DIY Audio ) is very happy indeed with his one.
"Once you find out ... the Circumstances ; then you can go out"
- pre65
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#5
Funnily enough, I have 4 of those in a drawer somewhere.
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
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- Old Hand
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#6
This may not look like a true PX25, but I like the curves.Paul Barker wrote:
What the Chinese come up with when asked to make a PX25
I would enjoy playing with it.