[Collins] Needing your support to study TubeSter substituting tubes in Collins

[Jim Whartenby]

Katsuhiko HiraiAccording to http://www.qsl.net/k/kh6grt/page4/tubesters/TSUB.pdf the semiconductors inside the ST102 are the 2N5346 JFET and a TIS131 NPN transistor.  The TIS131 seems to be equal to the 2N5058, see: https://www.netcomponents.com/ch/sitemap/TIS131.html.Regards,JimHot Springs, Arkansas, USA



      From: Katsuhiko Hirai <mxc04040 at nifty.ne.jp>
 To: collins at mailman.qth.net 
 Sent: Monday, December 18, 2017 12:48 AM
 Subject: [Collins] Needing your support to study TubeSter substituting tubes in Collins
   
Dear All, 
  Good morning and good evening.

I am looking for the data sheets of FET 'TI932' semiconductor.
Because I found it in the emulated triode-purpose functional circuits of
ST102 by Skytec.

These circuits are configured as a cascode TI932 with 2N5246.
The functional role might be a voltage trap to provide the appropriate
Vds voltage into the drain of 2N5246.
Thus, I would like to check the correctness of my understanding with the
data sheet of TI932.

Does anyone please let me know the data sheet?
I appreciate your support.
Best regards,
Katsuhiko Hirai/ JA3ECA, exN8EYH
Nara, Japan
-- 
Katsuhiko Hirai <mxc04040 at nifty.ne.jp>

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