RE: conjunctive filtering - dcal40@aol.com - SET Asylum

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Single Ended Triodes (SETs), the ultimate tube lovers dream.

RE: conjunctive filtering

dcal40@aol.com

In Reply to: RE: conjunctive filtering posted by Paul Joppa on August 1, 2016 at 13:02:38:

Paul, Thanks for that great explanation. In my experience the effect of this output filter appears to have a similar effect as using a zobel network on a cone speaker. It tightens the sound at the expense of some excitement. I have used a 5K resistor in series with a .01mF cap, both in parallel with SE transformer primary. The filter seems to tame ragged frequency response and it seems that the amp can drive the load with less tubby flabby loose low end with a somewhat rolled and "tame" HF. ( does it stabilize output impedence???). I have mixed feelings about the result but overall it is somewhat beneficial with my 6SF5 RC coupled to triode strapped EL34 into a Tomiko 2.5K SE OPT into various speakers, Dayton PS220, Altec 420, infinity overture 1s etc....It seems like a useful tool for 'scrapbox' amps made from less than exotic parts. Input from other enthusiasts welcomed, Thanks, David Calvello

Edits: 08/01/16

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Follow Ups Full Thread

Topic - conjunctive filtering - dcal40@aol.com 12:21:45 07/30/16 (12)

This is why test equipment such as a scope and signal generator - Michael Samra 02:57:46 08/05/16 (1)

RE: This is why test equipment such as a scope and signal generator - Hornlover 08:50:49 08/05/16 (0)

There's an online calculator for everything - kyle 08:18:42 08/03/16 (1)

RE: There's an online calculator for everything - Lenin 08:03:43 08/04/16 (0)

RE: conjunctive filtering - Frihed89 00:22:10 08/01/16 (7)

RE: conjunctive filtering - dcal40@aol.com 10:58:40 08/01/16 (6)

Common for guitar amps. - Chip647 05:26:36 08/03/16 (1)

RE: Common for guitar amps. - Michael Samra 01:52:24 08/05/16 (0)

RE: conjunctive filtering - Lenin 00:48:02 08/02/16 (0)

RE: conjunctive filtering - Paul Joppa 13:02:38 08/01/16 (2)

RE: conjunctive filtering - dcal40@aol.com 16:08:16 08/01/16 (1)

taming "ragged frequency response" - Frihed89 00:01:54 08/02/16 (0)

Follow Ups

RE: conjunctive filtering - dcal40@aol.com 16:08:16 08/01/16 (1)

taming "ragged frequency response" - Frihed89 00:01:54 08/02/16 (0)

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