Photo Gallery

[tim614]

Thanks mhouston

[Triodethom]

Great job love the spun cap bodies.

[tim614]

Originally Posted by Triodethom

Great job love the spun cap bodies.

Thank you!

[mhouston]

I was given a box of very old tubes. In the mix was a new pair of black metal tube RCA 6N7s (tested 80%). There seems very little schematics for this tube as a preamp but lucky my electronics engineer mate knocked up a design.

The preamp runs from a 18V 2.2A wall wart and uses a step down tranni backwards to produce 255VDC HT. The sound is punchy, deep driving bass, clear, clean and crisp. Best preamp I have ever made. Dead quiet at idle. I have called the preamp "Heavy Metal" after the metal tubes.

[mindutis]

Beautiful

[mhouston]

My Heavy Metal preamp with the RCA 6N7 tubes has made my whole CD, hard drive based high-rez music and LP selection sound like new. This morning I connected up my Cowon S9 to use it's FM tuner for ABC Classic fm to find it also sounds sooo much better.

Not sure what makes this preamp so good. It must be the tubes.

[6L6]

Pete Millett DCPP or "Engineer's Amplifier"
6CB6/6NJ6 Push-Pull Pentode with distortion cancellation.

More info can be found here - DCPP Amp


99% done, just need to finish a bit on the chassis wood.
It sounds fantastic!

[Triodethom]

Got to say I love the vents on the top there that great.

[freax]

Originally Posted by triodes4ever

Pic of one of my VT4-C monoblocks (driven by Valvo Ca, which is driven by a 26) Rectifiers are 1616 half-wave. OPT is Tango X10S. Interstage NC-14.
Choke input supply, amorphous chokes in HT.
etc etc.

oh man, this takes me back, tango transformers and that tube...

dreamy!!!

[rcavictim]

Originally Posted by Cassiel

No spinning but it weeds out bad vibes from your system. Here's another voodoo idea to improve your sound and take some heat off:

Is that part of a gun assembly from an in-line color CRT?