Tetra lives!!!!!

MrBurd · 13th July 2011, 07:25 AM

So after having John of Tube-cad fame exhibit his true colors as a gentleman with class and integrity I recieved my Tetra phono pre. I just have it temporarily mounted, as I couldn't wait to hear it, but it's nothing short of amazing. I'm no poet, so flowers and unicorns will not adorn my description, but some lp's made me laugh in disbelief, and some made me cry... Both were joyous.

I have to say that if you're in the market for a phono pre Johns circuits are of THE highest quality... Not to mention you're supporting a helluva guy and DIYer

I'll post pics when I'm not on my pocket computer(iPhone).

Cheers

Wha' DIYa know? · 13th July 2011, 03:44 PM

This phono pre has got my attention. I am looking to improve on my Transcendent Phono -- I wonder if this will do the job.

I was glancing at John's site, and got stuck at the power supply hurdle. I know I can build a kit from good instructions... is there information about how where, how to power the Tetra? What parts are needed?

Thanks in advance.

zkri · 13th July 2011, 05:49 PM

Quote:

Originally Posted by Wha' DIYa know?

I was glancing at John's site, and got stuck at the power supply hurdle. I know I can build a kit from good instructions... is there information about how where, how to power the Tetra? What parts are needed?

The Tetra has its own PS on board. You need a transformer with HV and heater voltages. There is User guide on John's site:
http://tubecad.com/Product_PDFs/Tetra_Phono.pdf

Wha' DIYa know? · 13th July 2011, 08:55 PM

Thanks Z'!

MrBurd · 14th July 2011, 09:03 PM

Sorry for the delay... I used an Edcor xfmr #XPWR054. They make them to order, so it took around five weeks, but seems to be a solid piece of gear.

I still don't have access to my computer, so pics will be a little longer, but I'm finding that my lp's are demanding my time now. :-)

While I was working on the case for the Tetra I hooked up my turntable to the on-board phono pre in my Yamaha and amazed at how bad it sounded. I couldn't wait to switch back!!

Freecrowder · 2nd October 2012, 12:09 AM

Do you find your Tetra to be quiet? Mine tends to hum a little more than I like. Would appreciate any feedback.

Wha' DIYa know? · 2nd October 2012, 12:32 AM

Feedback? Noooo! You don't want FEEDback!

;-)

13th July 2011, 07:25 AM	#1
MrBurd diyAudio Member Join Date: Aug 2008	Tetra lives!!!!! So after having John of Tube-cad fame exhibit his true colors as a gentleman with class and integrity I recieved my Tetra phono pre. I just have it temporarily mounted, as I couldn't wait to hear it, but it's nothing short of amazing. I'm no poet, so flowers and unicorns will not adorn my description, but some lp's made me laugh in disbelief, and some made me cry... Both were joyous. I have to say that if you're in the market for a phono pre Johns circuits are of THE highest quality... Not to mention you're supporting a helluva guy and DIYer I'll post pics when I'm not on my pocket computer(iPhone). Cheers

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13th July 2011, 03:44 PM	#2
Wha' DIYa know? diyAudio Member Join Date: Mar 2009	This phono pre has got my attention. I am looking to improve on my Transcendent Phono -- I wonder if this will do the job. I was glancing at John's site, and got stuck at the power supply hurdle. I know I can build a kit from good instructions... is there information about how where, how to power the Tetra? What parts are needed? Thanks in advance.

13th July 2011, 08:55 PM	#4
Wha' DIYa know? diyAudio Member Join Date: Mar 2009	Thanks Z'!

14th July 2011, 09:03 PM	#5
MrBurd diyAudio Member Join Date: Aug 2008	Sorry for the delay... I used an Edcor xfmr #XPWR054. They make them to order, so it took around five weeks, but seems to be a solid piece of gear. I still don't have access to my computer, so pics will be a little longer, but I'm finding that my lp's are demanding my time now. :-) While I was working on the case for the Tetra I hooked up my turntable to the on-board phono pre in my Yamaha and amazed at how bad it sounded. I couldn't wait to switch back!!

2nd October 2012, 12:09 AM	#6
Freecrowder diyAudio Member Join Date: Jun 2007	Do you find your Tetra to be quiet? Mine tends to hum a little more than I like. Would appreciate any feedback.

2nd October 2012, 12:32 AM	#7
Wha' DIYa know? diyAudio Member Join Date: Mar 2009	Feedback? Noooo! You don't want FEEDback! ;-)