ZM's 2SK2087C musings, phase one (SissySIT as cradle)

Conclusion:

2SK2087C, very Iznogood part!

in SissySIT - comparing to ( origonal THF51S iteration) :

-same DEFiSIT-ish THD Spectra
  • slightly smaller power
  • evidently lower THD in entire power range, except on clipping
-same benign character regarding Iq and DC Offset stability ( nothing to write home about, in time/temp/rails fluctuation domains)


as I said in origin 2SK2087C thread, I have intention to try them in already (so-so) ready-to-do circuits

- Singing Bush ( why not, combined with IRFP150, little SE)
-Choked Singing Bush ( hopefully that one not being speaker killer during power On cycle)
-Lazy Singing Bush

now just to find some time, soon

Life is Fun

:clown:
👍👍👍
 
posted same in initial 2SK2087C thread, but why not here too ......

Just to share with you generosity gesture by @yoshida - san

as he informed us, he was able to buy SITs locally from reputable source
I did contact him through PM, to help in arranging buy from same source, ZM Gaijin evidently not up to task to converse in Japanese language
Though, it came to sad fact of named source dried up already, even if their web page still showing stock ( I was fast, but not fast enough)
Anyway, yoshida - san offered to send me substantial chunk of his own personal stash, previously bought, as his personal gift

So, I received package today, along with few pages of Japanese papers inside, so I can practice learning Japanese .......... and now besides language lessons I'll be able to properly pursue usage of funny smallnotsosmall SITs in my concoctions

ZM Happy Camper

:clown:
 
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I was cheating

DC coupled version being in my pile of files for several months already
.....


as usual ..... it is in my nature (contrary to Pa) to post preliminary schematics, always on verge between All The Glory and Public Disgrace :rofl:

so, Mighty Moi again ......

pcbs coming soon, so we'll see outcome

:clown:
 

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