Anyone tried UL or Triode connecting the $140 kit ?

percy · 21st December 2004, 02:04 AM

This little kit keeps getting my attention. Anyone tried modifying it to Ultra-Linear or Triode-Connected mode ?

Tom Bavis · 21st December 2004, 02:09 AM

UL would take a new output transformer - triode is a possibility though...

Sherman · 21st December 2004, 02:13 AM

Quote:

Originally posted by percy
This little kit keeps getting my attention. Anyone tried modifying it to Ultra-Linear or Triode-Connected mode ?

Are you talking about the S5 Electronics kit? I have built one and think it sounds very good, especially for $140.

However the OPTs supplied with the kit don't have UL taps so you'd have to replace those. No idea about triode connected mode though, never crossed my mind.

I had thought about replacing the OPTs with a pair from Uncle Ned just to give it a listen. He has a P-P OPT with UL tap and it looks nicer than the open ones in the kit.

http://store.yahoo.com/triodeel/tf65wscta48o.html

percy · 21st December 2004, 03:26 AM

Yes I am referring to the S5 kit but didnt specifically mention that as the same kit is available from a two or three different vendors.

I recollect from my earlier findings that the OPT primary Z should be 10Kohm. But if you change to UL or triode I believe that will change.

Tom, have you done the UL mod ?

21st December 2004, 02:04 AM	#1
percy diyAudio Member Join Date: Apr 2004 Location: MN	Anyone tried UL or Triode connecting the $140 kit ? This little kit keeps getting my attention. Anyone tried modifying it to Ultra-Linear or Triode-Connected mode ?

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21st December 2004, 02:09 AM	#2
Tom Bavis diyAudio Member Join Date: Jun 2002 Location: Macedon NY	UL would take a new output transformer - triode is a possibility though...

21st December 2004, 03:26 AM	#4
percy diyAudio Member Join Date: Apr 2004 Location: MN	Yes I am referring to the S5 kit but didnt specifically mention that as the same kit is available from a two or three different vendors. I recollect from my earlier findings that the OPT primary Z should be 10Kohm. But if you change to UL or triode I believe that will change. Tom, have you done the UL mod ?