Diyaudio Universal Tube Output

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UTS - Universal Tube Stage | diyAudio

https://www.diyaudio.com/community/threads/uts-universal-tube-stage.154004/

Nick Whetstone of TNT,(one of the earliest webzines), has just posted a review of the EZ Linestage. Read it here Shop for it here

DIY Audio Projects Forum • 4S Universal tube preamp

https://diyaudioprojects.com/Forum/viewtopic.php?t=4087&start=30

According to matt the subwoofer output configured like this is about -18.5dBv from the main preamp output and still maintains the ac load on the 4S. My subwoofer plate amp has line level rca inputs, and also controls to set the low frequency limit (Set to 50Hz currently), it also has a level control, and a phase control.

Can I drive the output tube harder? | diyAudio

https://www.diyaudio.com/community/threads/can-i-drive-the-output-tube-harder.185919/

I would say that depends more on the speaker. Your Fostex may have easier time dealing with > 70Hz signals thus less distortion (benefit). As for the high pass, I would go with line level filter like this and augment the low end with subwoofer. If you want to increase the output wattage of TSE, you would want to change to 300B tubes and possibly output transformer if …

Autobiasing output tubes (6L6)? | Page 3 | diyAudio

https://www.diyaudio.com/community/threads/autobiasing-output-tubes-6l6.341223/page-3

The module constantly creates optimum conditions for the output stage, independently of tube aging and consequent changes in their parameters. OT: The incorporation of a CR to a valve amplifier is not very common, as far as I know, it is a great comfort to control the volume, the input selector, the switching from triode to pentode, the mute ...

4S Universal Preamplifier for 12A*7 Tubes

https://diyaudioprojects.com/Tubes/Universal-Tube-Preamplifier/

12BH7 Tube with 4S Universal Preamp. UPDATE - 23 October 2014 Well, I have another update to the possible tube list for the 4S Universal Preamplifier. This is a special case because you can only use the 12BH7 tube if your heater supply is capable of putting out a full 600 mA into the filament.If so, the 12BH7 tube will expand your tube rolling capabilities.

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