Photo Gallery

[soldersober]

My 4P1L monoblocks completed. Parallelled 4P1L's in filament bias, OPT by Silk Audio. Big caps in PSU are now bypassed by film caps, not shown in photos

 

[Bigun]

Looks great !

 

[alex mm]

My PP amplifier it's a live, and working very well, project finished ..... and I thinking, to build, another one, next year . Over the years, I have build, many amps, SS and tube, but this it's the best, sounding, amp I ever build .
Regards,
Alex

 

[Wavebourn]

Here is a convenient way for prototyping: cheap ruler from Harborfreight (cheaper than aluminium it's made of) allows to draw dimensions and positions of holes without measurements.

 

[JoeAlders]

Every time when I am browsing this thread I am flabbergasted by the high quality of the "metal works".
What I beautiful jobs are done here! Until now I have never managed to produce a chassis worth showing.

 

[gaborbela]

My PP amplifier it's a live, and working very well, project finished ..... and I thinking, to build, another one, next year . Over the years, I have build, many amps, SS and tube, but this it's the best, sounding, amp I ever build .
Regards,
Alex

Congratulation Alex! Enjoy your amp.

 

[mhouston]

Ouch... Listening to some nice smooth jazz I heard some clicks from speakers and thought that something is arching under the chassis in my amp prototype... But saw nothing wrong... Then realized that that were clicks of the vinyl playing by Pandora radio.

Amp looks most retro.

 

[multi]

Soldersober & alex mm
Do you make the transformers Covers or buy them?
I have been collecting sauce pans for covers for toriods.
THANKS Phil

 

[soldersober]

I buy them, no way I can make a decent looking one. There’s a lot of choices at aliexpress, different shapes and sizes

 

[faktion]

SE-814 triode mode

You can ship that to me, here's my address...

 

[gaborbela]

Soldersober & alex mm
Do you make the transformers Covers or buy them?
I have been collecting sauce pans for covers for toriods.
THANKS Phil

You can buy those from eBay. I purchased 2 for SS project.

 

[Wavebourn]

Amp looks most retro.

"Everything new is well forgotten old"

 

[alex mm]

Congratulation Alex! Enjoy your amp.

Thank you Gabor, I will, be sure of this .
alex mm

Do you make the transformers Covers or buy them?
I have been collecting sauce pans for covers for toriods.
THANKS Phil

On eBay, you can find, different size, vintage round cover . It's impossible, to make them, at home.

 

[jdg123]

Martin, I am late to the show and rarely comment but your build is gorgeous! Very nice layout and chassis work and I suspect there was just as much that went into the circuit as the casework. So...where did your ideas come from?

 

[vuohi]

Well, my latest amp build isn't quite finished yet, so I decided to do something extremely useful instead. Not exactly an amp, but close enough. Testing out some ideas for my next amp build, this is what I ended up with. Some might argue this is not the best use for 5727 tubes, maybe even say this is possibly the least useful thing ever built with one, but I would have to disagree. Yes, it is a keychain. My apologies.

 

[cbueche]

Smart use of a yellow LED

 

[Dubulup]

Here's my Transcendent T8 OTL chassis with the valves plugged in.

Steve - are you still around to repost these images?

 

[mhouston]

Two stage differential small monoblocs (300mm x 120mm) with Sowter 8920 used as splitter at input.

Different build, looks interesting.

 

[brommermartin]

Martin, I am late to the show and rarely comment but your build is gorgeous! Very nice layout and chassis work and I suspect there was just as much that went into the circuit as the casework. So...where did your ideas come from?

The idea came from the design of the Viva 845 amp
http://audiograffiti.com/wp-content/uploads/2016/05/Image-Hifi.com-62015-Viva-Audio-Solista.pdf

The use of the 814 tube came from Ale Moglia
http://www.bartola.co.uk/valves/2013/11/23/814-se-a2-amplifier/

 

[jdg123]

Thank you Martin. I read both articles with interest! You must be proud to have blended those sources to perfection. May your music take you further into bliss as a result!
I’m still thinking through my own A2 build using 811-10s. Check back in a year or so should you like.

Cheers!