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Re: Still a bit of a generalization, but... [message #10972 is a reply to message #10967]

Mon, 14 February 2005 15:18

Damir
Messages: 1005
Registered: May 2009

Illuminati (2nd Degree)

Hmm... When I try to compare "proper" (by my "standards", anyway:-)) way for making PP or SE amp, PP is more expensive...:-).
Yes, one can use 1N4007 bridge, 220uF electrolytic cap for the B+ (and say, another RC filter for the driver), with goal "everything cancels in OPT"... Then use simple (or low/medium quality) OPT, class AB, common pentode/beam tetrode (say EL34, KT88, or so), UL connection, NFB "loop" of 15 db or more... Then "ordinary" LTP phase splitter based on, say 12AT7 or so with 12AU7 "input" tube, etc.

But, if we use similar principles like in SE building - careful selection of linear tubes for the driver and output (DHT), class A operating point with carefully chosen high-quality OPT, LC-style PS with HQ oversized PT(s) (plus maybe additional heater/filaments transformers), MKP (non-electrolitic PS caps), no NFB loop, say - monobloc construction, phase splitter with real balance (CCS), etc. - we can really spend more for PP amp...but, I`m sure that the results will be worth it...

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[Message index]

		Pull pin... By: PakProtector on Mon, 14 February 2005 04:50
		Re: Pull pin... By: Manualblock on Mon, 14 February 2005 06:19
		nope... By: PakProtector on Mon, 14 February 2005 08:14
		Re: nope... By: Manualblock on Mon, 14 February 2005 09:34
		Re: nope... By: TC on Mon, 14 February 2005 10:24
		Re: nope... By: Manualblock on Mon, 14 February 2005 13:15
		sometimes.... By: PakProtector on Mon, 14 February 2005 14:33
		Re: sometimes.... By: Manualblock on Mon, 14 February 2005 18:07
		that's a good one... By: PakProtector on Mon, 14 February 2005 19:19
		Reference music? By: colinhester on Mon, 14 February 2005 20:36
		Re: Reference music? By: PakProtector on Mon, 14 February 2005 20:58
		Re: that's a good one... By: Manualblock on Tue, 15 February 2005 06:23
		Thoriated W By: PakProtector on Tue, 15 February 2005 06:49
		Re: Thoriated W By: Manualblock on Tue, 15 February 2005 10:11
		Re: Thoriated W By: PakProtector on Tue, 15 February 2005 12:35
		Re: Thoriated W By: Manualblock on Tue, 15 February 2005 15:46
		Re: Pull pin... By: akhilesh on Mon, 14 February 2005 09:17
		Re: Pull pin... By: TC on Mon, 14 February 2005 10:08
		Re: Pull pin... By: akhilesh on Mon, 14 February 2005 12:48
		Re: Pull pin... By: TC on Mon, 14 February 2005 13:42
		Re: Pull pin... By: akhilesh on Mon, 14 February 2005 13:50
		Re: Pull pin... By: Manualblock on Mon, 14 February 2005 14:24
		Re: Pull pin... By: akhilesh on Tue, 15 February 2005 07:34
		Re: Pull pin... By: Manualblock on Tue, 15 February 2005 18:25
		Changes in Output Z By: Steve on Sat, 18 June 2005 09:42
		No, absolutely not! By: PakProtector on Mon, 14 February 2005 14:40
		Re: No, absolutely not! By: TC on Mon, 14 February 2005 15:32
		Check this out By: Wayne Parham on Mon, 14 February 2005 17:46
		Still a bit of a generalization, but... By: Wayne Parham on Mon, 14 February 2005 14:01
		Re: Still a bit of a generalization, but... By: Damir on Mon, 14 February 2005 15:18
		Re: Still a bit of a generalization, but... By: Wayne Parham on Mon, 14 February 2005 16:10
		Re: Still a bit of a generalization, but... By: Manualblock on Mon, 14 February 2005 17:59
		"Budget" SET By: Damir on Tue, 15 February 2005 12:44
		Re: "Budget" SET By: Wayne Parham on Tue, 15 February 2005 15:25
		"Budget" SET=Milatary Intelligence By: PakProtector on Tue, 15 February 2005 18:01
		Re: "Budget" SET=Military Intelligence By: Wayne Parham on Tue, 15 February 2005 22:03
		Re: Still a bit of a generalization, but... By: John Chleapas on Mon, 14 February 2005 23:22
		Re: Still a bit of a generalization, but... By: Wayne Parham on Mon, 14 February 2005 23:42
		Re: Pull pin... By: DRCope on Mon, 21 February 2005 13:44
		Re: Pull pin... By: akhilesh on Mon, 21 February 2005 15:03
		Is Fat a compliment, etc . . . . By: DRCope on Wed, 23 February 2005 17:51
		Also By: akhilesh on Mon, 21 February 2005 15:17
		Re: Also By: DRCope on Wed, 23 February 2005 17:55
		Re: Also By: akhilesh on Thu, 24 February 2005 10:13
		Re: Also By: DRCope on Thu, 24 February 2005 14:42
		con permisso By: PakProtector on Fri, 25 February 2005 05:47
		Re: con permisso By: Wayne Parham on Fri, 25 February 2005 09:23
		Re: Also By: akhilesh on Fri, 25 February 2005 08:18
		Re: Also By: DRCope on Fri, 25 February 2005 09:20
		Re: Also By: Wayne Parham on Fri, 25 February 2005 09:28
		Re: Also By: DRCope on Fri, 25 February 2005 10:33
		Re: Also By: Wayne Parham on Fri, 25 February 2005 11:21
		Re: Also By: DRCope on Fri, 25 February 2005 11:57
		Re: Also By: akhilesh on Fri, 25 February 2005 12:26
		Re: Also By: Wayne Parham on Fri, 25 February 2005 09:14
		Re: Also By: DRCope on Fri, 25 February 2005 10:44
		Re: Also By: Steve on Sun, 15 May 2005 12:25
		Hence the discussion... By: PakProtector on Tue, 22 February 2005 15:18
		Re: Pull pin... By: Steve on Tue, 17 May 2005 10:48
		Here is a good link by a SET amp builder, scroll to the bottom By: akhilesh on Thu, 24 February 2005 13:05
		A topology too far....... By: TC on Mon, 14 February 2005 11:54
		Good question By: colinhester on Mon, 14 February 2005 15:10
		Re: Good question By: Manualblock on Mon, 14 February 2005 17:58
		Re: Push/Pull pin... By: ChrisL on Wed, 16 February 2005 09:26
		expansions By: PakProtector on Wed, 16 February 2005 10:09
		Re: expansions By: ChrisL on Wed, 16 February 2005 12:44
		Nice! By: Wayne Parham on Wed, 16 February 2005 18:45
		Re: Push/Pull pin... By: akhilesh on Thu, 17 February 2005 08:57
		Re: Pull pin... By: Matts_ on Mon, 08 August 2005 22:44
		now just wait a sec.... By: Thrint on Tue, 09 August 2005 10:01
		Re: now just wait a sec.... By: Matts_ on Tue, 09 August 2005 19:21

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