Tube and Passive Preamps-Auto Transformers for Attenuators/Volume Control - Overview - diyAudio
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Old 8th February 2010, 04:08 PM   #1
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Default Tube and Passive Preamps-Auto Transformers for Attenuators/Volume Control - Overview

Here a small overview of such transformers:

Silvercore
http://www.silvercore.de/index.php?stepper-11

Audio-Consulting
http://www.audio-consulting.ch/images/file/SWGLA.pdf
SWGLA
Silver Rock TVC
http://www.audio-consulting.ch/image...sive%20TVC.pdf
6moons.com - industry features: DNA's*Silver Rock
http://web.archive.org/web/200702020...ch/DIY+Pot.htm
http://web.archive.org/web/200802290...c_passive.html

SAC Thailand
SAC Thailand

Nasotec (from Audio-Consulting, Swiss)
???
???

Stevens & Billington Limited Audio Transformers
Stevens & Billington Limited Audio Transformers
Stevens & Billington Limited Audio transformers TX-102
inside by this device:
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"...the best preamplifier ever made" says Mr. David Price, Hi-Fi- World

SOWTER
SOWTER AUDIO TRANSFORMERS
where now are the transformers for volume control (SOWTER has update their website) ?

Are there more brands and suppliers of such transformers?

Last edited by tiefbassuebertr; 8th February 2010 at 04:14 PM.
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Old 8th February 2010, 04:27 PM   #2
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where now are the transformers for volume control (SOWTER has update their website) ?

Here!
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Old 8th February 2010, 04:39 PM   #3
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Ask Jan First ; electron tubes and more
go to 'output transformers' and look for STH20.

No idea how good they are...
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Old 8th February 2010, 04:51 PM   #4
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Originally Posted by tiefbassuebertr View Post
Are there more brands and suppliers of such transformers?

intact audio
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Old 8th February 2010, 05:01 PM   #5
euro21 is offline euro21  Hungary
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Promitheus
Promitheusaudio Reference C-core

Glasshouse
Glasshouse transformer

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Last edited by euro21; 8th February 2010 at 05:10 PM.
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Old 16th April 2010, 09:09 PM   #6
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thank you also for this supplements - now I have a great choice.
What of this models I should prefer?
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Old 16th April 2010, 10:47 PM   #7
Gordy is offline Gordy  United Kingdom
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Originally Posted by tiefbassuebertr View Post
What of this models I should prefer?
Absolutely nothing wrong with the Sowters, except the price!
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Old 25th September 2010, 02:43 PM   #8
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Question Need more volumn Passive Pre with 1/10 transformer.

Has anyone tried using a passive Pre in conjunction with a 1/10 step-up transformer. What would the pitfalls be with such a configuration
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Old 25th September 2010, 02:54 PM   #9
Arnulf is offline Arnulf  Europe
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Originally Posted by tabarddn View Post
Has anyone tried using a passive Pre in conjunction with a 1/10 step-up transformer. What would the pitfalls be with such a configuration
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