Newbie Tube Pre-amp Build

here's a link to pics of my parts layout for the M&M 5687 pre build.

http://www.flickr.com/photos/fotosnap/

I haven't had time to even start working on the build yet , work has intruded as usual. I bought a Lightstar Direct pre chassis from one of Bob's engineers to use for my build. $50 shipped, and it's way cheaper than anything else I'd found.

ray

That will look quite good. The lightstar chassis will throw just about everyone off. Also quite awesome to get bob to sign it!

Ran across some good info for all you DIY builders.

http://www.snotr.com/video/11221/Shocking_truth_about_making_an_audio_amplifier

....info you can use!!

Mark

Mark thats why I pay others to build things for me... I would end up with scars and all kinds of issues doing it myself lol.

I reckon it's time to start on this project:

Today I received a matched pair of 1950s blackplate Tung-Sol 5687s. I've ordered a matched quad of 1960s GE JAN 7044s and a matched pair of late 1960s Raytheon 5687s. All to roll in my M&M 5687 simple tube pre...which has turned out not to be so simple...or cheap. I've enlisted one of my neighbors to lend a hand with some of the concrete work. More on that later. I've had all of the parts for a while(since Jan 2013), so I've decided to start on it. My good friend George Daniel sent me a very fine RCA 6X4 that will serve as the tube rectifier. I found another just like it as this pre will be dual mono design. There will be one 5687 and 6X4 per channel and will feature a capacitor selector allowing switching between 3 different output coupling caps. I'll start drilling holes in the top plate tomorrow for the tube bases, the 35mm electrlytics, mains transformer and the Hammond chokes.

Pics to follow

ray

I reckon it's time to start on this project:

Today I received a matched pair of 1950s blackplate Tung-Sol 5687s. I've ordered a matched quad of 1960s GE JAN 7044s and a matched pair of late 1960s Raytheon 5687s. All to roll in my M&M 5687 simple tube pre...which has turned out not to be so simple...or cheap. I've enlisted one of my neighbors to lend a hand with some of the concrete work. More on that later. I've had all of the parts for a while(since Jan 2013), so I've decided to start on it. My good friend George Daniel sent me a very fine RCA 6X4 that will serve as the tube rectifier. I found another just like it as this pre will be dual mono design. There will be one 5687 and 6X4 per channel and will feature a capacitor selector allowing switching between 3 different output coupling caps. I'll start drilling holes in the top plate tomorrow for the tube bases, the 35mm electrlytics, mains transformer and the Hammond chokes.

Pics to follow

ray

Ray has not only been bit, he's infected. Do not get too close.....this is what happens when you get tube rabies and exposure thats brought on by bob........