[tomb]

Quote:

Originally Posted by odoe /img/forum/go_quote.gif Excuse my cap noobness, but what kind of film caps are those?

Interesting -
http://www.seas.co.uk/acatalog/SAX_Capacitors.html

 

[vixr]

Quote:

Originally Posted by tomb /img/forum/go_quote.gif Interesting - http://http://www.seas.co.uk/acatalo...apacitors.html

tomb... bad gateway error message on the link...double http

 

[tomb]

Quote:

Originally Posted by vixr /img/forum/go_quote.gif tomb... bad gateway error message on the link...double http

Oops - I keep copying links and forget Head-Fi already prefixes with "http://". It's fixed.

 

[ruZZ.il]

woohoo lsdiodes arrived!

I can continue with the sockets now, and everything taller. rsisrael has my forgotten heat sinks that I'll pick up tomorrow and all being well, another one will live

nice build scoot, but I'm wondering what led you to load CA3 with those caps?

 

[Ferrari]

Quote:

Originally Posted by scooot /img/forum/go_quote.gif She lives!: Guts

Hee... I'm not the only one who uses huge MKP's on the MH Max

 

[scooot]

Quote:

Originally Posted by ruZZ.il /img/forum/go_quote.gif nice build scoot, but I'm wondering what led you to load CA3 with those caps?

Well I had planned to use those Soniqs on all film cap places just for the heck of it but ran out of space at CA8, those sinks get fairly toasty and I didnt want to shove a film cap right up next to one.

As for the Soniqs, they can be picked up off eBay cheap as

 

[babbkutz@comcast]

Why would some MAXs need the grounding wire from the pot when others don't? (Yeah I've got a live one here (DB) but touching the pot at full volume (12AE6A tubes) produces ground hum......no touch no hum......wire seems to solve the problem)......all my setup measurements came off without a hitch 27V/13.5V/70mV

 

[Ferrari]

Quote:

Originally Posted by babbkutz@comcast /img/forum/go_quote.gif Why would some MAXs need the grounding wire from the pot when others don't? (Yeah I've got a live one here (DB) but touching the pot at full volume (12AE6A tubes) produces ground hum......no touch no hum......wire seems to solve the problem)......all my setup measurements came off without a hitch 27V/13.5V/70mV

If the Alps pot is mounted on a metal face plate (assuming the face plate is conductive), the Alps pot is already connected to GND via the face plate... thus grounding wire is superfluous. But if the Alps pot is mounted on a non-metal face plate (wooden, plastics...) or an uncased amp, then a grounding wire is necessary to connect the Alps pot to GND.

 

[amphead]

Quote:

Scooot: She lives!

Thats one swanky case! How do you like your sound with the big film caps?

 

[amphead]

Quote:

ruZZ.il: woohoo lsdiodes arrived! I can continue with the sockets now, and everything taller. rsisrael has my forgotten heat sinks that I'll pick up tomorrow and all being well, another one will live

Congrats! Looks like you beat me by one week.

 

[tomb]

Quote:

Originally Posted by Ferrari /img/forum/go_quote.gif If the Alps pot is mounted on a metal face plate (assuming the face plate is conductive), the Alps pot is already connected to GND via the face plate... thus grounding wire is superfluous. But if the Alps pot is mounted on a non-metal face plate (wooden, plastics...) or an uncased amp, then a grounding wire is necessary to connect the Alps pot to GND.

Ferrari is correct.

Also, the recommended Hammond case is insulated by the anodizing. Unless the pot shaft makes contact with the edges of the drilled hole, the grounding wire is needed.

 

[odoe]

I think I expected these orange drops to be smaller. Deceiving name.

I'm guessing I'm going to leave these until last to install creatively, heh

 

[tomb]

Quote:

Originally Posted by odoe /img/forum/go_quote.gif I think I expected these orange drops to be smaller. Deceiving name. I'm guessing I'm going to leave these until last to install creatively, heh

A few of us got some Vitamin Q's that are a little worse than that. That said, they look pretty flat. If you're doing a BJT version, you may have room to mount them under the board.

 

[ruZZ.il]

Quote:

Originally Posted by amphead /img/forum/go_quote.gif Congrats! Looks like you beat me by one week.

Not so quickly

I hadnt been around most of the day, but I got around to 'finishing it up'

The PS works and is set to 22v in the meantime, LED's... bright

but I'm having issues biasing the tube voltages, and the right channel DB current. QB8/9R bias at a minimum of around 170ma and respond to the trimpot going upwards. With a tube in, this just shoots to around 1A

, and gets too hot(unplug). I've made sure I got the right value components(visually) in their places, and the transistors read sane values when I check the 2 forward bias (diode check) values too (the left seem to bias as expected). I think it may be cause I had all my trimpots completely loosened(anti clockwise) when I powered up, instead of 'trimmed down'(clockwise, it seems) for about 20~30s till I got to that check. The tube voltages both seems to be at at about 18.5v, and don't respond to trimming(throughout the whole range)

so I'll troubleshoot some more tomorrow, with more detail/pics to see if anyone can pick anything up too. I have a feeling I'll be waiting for some transistors now

off to zzz though and thanks to anyone who has anything to say in the meantime

Also, are these sonicap genIIs polarized

?
-ruZZ

 

[c0nsumer]

Quote:

Originally Posted by odoe /img/forum/go_quote.gif I think I expected these orange drops to be smaller. Deceiving name. I'm guessing I'm going to leave these until last to install creatively, heh

Don't forget the possibility of mounting them vertically. The leads look long enough that you may be able to upend them. I've done this before with smaller parts and had no problems.