WTB - Power Transformer for Tube Preamp

[vdi_nenna]

Want to buy a power transformer for a tube preamp kit requiring 200v DC.
Kit manufacturer recommends 170vac for B+ and 6.3vac for heater.
Tube is a 5670 twin triode.

 

[grimberg]

Could you use this one?

AS-1T175 - 100VA 175V Transformer - AnTek Products Corp

 

[vdi_nenna]

That transformer would work.
I went through the Antek grid this morning for a while but could pin-point what I needed.

Do you know if there are any concerns with power toroids in tube circuits as opposed to standard power transformers? Is in-rush a problem or high frequency noise?

Thanks,

Vince

 

[d to the g]

EDCOR - XPWR085

 

[vdi_nenna]

Found the Edcore, but there's an 8 week wait.

 

[evanc]

I’ve used antek toroidal transformers as power for tube pre and power amps with no problems I can discern.

Their cheap available and a nice metal case can be purchased from antek to dress them up if your design has the transformer visible

 

[grimberg]

That transformer would work.
Do you know if there are any concerns with power toroids in tube circuits as opposed to standard power transformers? Is in-rush a problem or high frequency noise?

I don't know of any issues regarding use of toroid transformers to power valve gear. In fact, a while ago, member SY concurred with my selection of an Antek transformer to build the ImPasse pre-amplifier, which he designed.

https://www.diyaudio.com/forums/pass-labs/136835-impasse-preamplifier-61.html#post3617782

 

[vdi_nenna]

Thank you all for the info.