[adfinni]

Truly stunning work on the MAX site, it's soo easy to follow !!!!!!

IL be pestering you all in about a month when im ready to order parts for my hybrid, but mainly because im in the UK and it's impossible to find the correct 24V AC wallwart. I can find a 24V 1.5A one but that seems about it.

anyways, il leave you alone for the time being, and just dream about the time when i can build mine

 

[amphead]

Quote:

Originally Posted by mb3k /img/forum/go_quote.gif I will leave this one to the rightful individuals that made the max possible. I'll enjoy being the receivers' end this one around. Just lovely

What is the best sounding amp that you have built to date?

 

[NeilR]

Quote:

Originally Posted by adfinni /img/forum/go_quote.gif IL be pestering you all in about a month when im ready to order parts for my hybrid, but mainly because im in the UK and it's impossible to find the correct 24V AC wallwart. I can find a 24V 1.5A one but that seems about it.

A 1.5A 24VAC wart would work well, and arguably better than a lesser rated wart.

 

[adfinni]

Quote:

Originally Posted by NeilR /img/forum/go_quote.gif A 1.5A 24VAC wart would work well, and arguably better than a lesser rated wart.

ahhh excellent, cheers for that

Going to read up a lot more in the next month as i have some knowledge and roughly know whats going on, but i really want to be able to understand circuits and exactly what each part does.

 

[tomb]

Quote:

Originally Posted by NeilR /img/forum/go_quote.gif A 1.5A 24VAC wart would work well, and arguably better than a lesser rated wart.

Agreed. A 24VAC, 1.5A will be great for the MAX. The published walwart suggestions are minimums.

EDIT: Oops - didn't chime in quickly enough.

 

[vixr]

is it a good idea to socket the resistors for the tube CCS? (RA8 and RA9)

 

[tomb]

Quote:

Originally Posted by vixr /img/forum/go_quote.gif is it a good idea to socket the resistors for the tube CCS? (RA8 and RA9)

If you want to play with different values, yes.

I didn't, so I didn't socket mine. The BOM listing for those resistors gives you a CCS current that's essentially the same as the traditional Millett.

 

[NeilR]

Quote:

Originally Posted by vixr /img/forum/go_quote.gif is it a good idea to socket the resistors for the tube CCS? (RA8 and RA9)

Rob, I socketed RA8 (only) and that allows me to tinker with the bias value. Colin suggested to me in a private email that RA9 needs to be at least 10X RB8, so I made RB9 51K, which was 10X the highest value I thought I might want to try. Although I have not gotten around to tinkering with that part, RB8=1.13K and RB9=51K is giving me a bias of about 0.59ma., which is just what I expected.

If you were to socket all 4 parts, I think it would be possible to experiment with many different CCS's, such as the 1N5291 type monolithic CCS used in the older Millett board, or maybe a JFET with a resistor.

 

[vixr]

OK... thanks tomb. it looks to be a tight squeeze anyway. I guess one could push the black stuff off the socket strip... thanks NeilR... I was thinking along those lines too...

 

[NeilR]

Rob,

RA8 has enough room as long as you use the standard MKP cap or a smaller part, even without stripping the insulation from the SIP pin:

 

[vixr]

oh, perfect! I ordered the wimas too, so it should be no problem. BTW, NeilR that picture is very helpful. thank you.

 

[soloz2]

Neil, what's the PN for the screw terminals you used?

 

[vixr]

soloz2, the part number is in the BOM at the MAX site, but mouser is out of the 3 pos one... digikey has them though.

 

[amphead]

Quote:

Originally Posted by NeilR /img/forum/go_quote.gif Rob, RA8 has enough room as long as you use the standard MKP cap or a smaller part, even without stripping the insulation from the SIP pin:

Nice build, looking forward to my Millet Max!

 

[amphead]

Is that a custom volume knob, or do you have a part number?