SIT
Could the F6 be built with these devises: 2SK82 and 2SJ28 ?
I bought a pair of each a while back and need a project for them.
Rush
Could the F6 be built with these devises: 2SK82 and 2SJ28 ?
I bought a pair of each a while back and need a project for them.
Rush
probably too much complicated , at least comparing to intended SS ones
difference is that your's are depletion mode devices , needing negative voltage on gate (ref. source) for proper biasing , while SS SJEP are enhanced mode devices , needing positive voltage on gates (ref. source) for proper biasing
meaning - for SS , all you need is few resitors , pots and caps
for your's - you need at least one additional PSU rail , more negative than main -PSU
difference is that your's are depletion mode devices , needing negative voltage on gate (ref. source) for proper biasing , while SS SJEP are enhanced mode devices , needing positive voltage on gates (ref. source) for proper biasing
meaning - for SS , all you need is few resitors , pots and caps
for your's - you need at least one additional PSU rail , more negative than main -PSU
Ill get to it eventually with R085. As ZM has suggested, we dont know whats going on with bias and any tricks Nelson might be pulling. All smoke and mirrors for now.
if you mean on depletion R085 - it's not worth complication , if you ask me
sometime is needed to draw a line in overcomplication
(sez a guy who is Babelfishing Papa's simple amps in something much less simple
)
sometime is needed to draw a line in overcomplication
(sez a guy who is Babelfishing Papa's simple amps in something much less simple
)
For me not the measured results is the benchmark (particularly regarded the value of low order THD), but the perception sonic results by listening tests at various loads (i. e. various loudspeakers).
More Ideas:
The first both topologies about
http://www.ant-audio.co.uk/Theory/N-channel D-MOSFET output stage with improved linearity.pdf
shows a NMOS Power gain output PP stage (common source) and Current gain output PP stage (source follower).
Is this also possible with a passive solution (i. e. by use of a driver transformer, as intended here) ??
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The first two schematics are interesting. The second one describes a linear transconductance amp; noting the general interest in this type of amp.
http://www.diyaudio.com/forums/pass-labs/97540-f4-power-amplifier-303.html#post2136036
http://www.diyaudio.com/forums/pass-labs/97540-f4-power-amplifier-340.html
and following
the links above are to different pages in the F4 thread
Hmmm. Another misdirection? I think it can do a lot better, depending on the xformer.
Life will be a lot easier if you stop thinking I would deliberately mislead you.
Easier for me....
😎
Easier for me....
😎
Ok, I will be (partially) silenced until I do better than .1% will the real thing.
You mean you dont have a Halcro, then "your audio system is suffering". Did you know they use industrial grade components? And their lab people where coats. None of this jeans and tshirt stuff. It gives the amplifiers a very clean and precise sound. Take that Nelson.
I think you could stay at my brother's house out Carmel Valley!
Around this time of year he suddenly has a lot of friends!, but he also has a big spread..
Attachments
according to data , yes ;
but!! only if CT means that you can wire them as needed : 150 // 150 : 150 +150 (where + means independent )
will they be better that Jensens .......... just direct comparison can tell
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