Thanks for the comments! I am really excited about the work being this my first real electrical project.
Nuuk, are you referring to the opening in the front of the case? If so, it is just an opening that I think Brian had intended to use for his controller screen. He is lending me the case until I finish mine.
Yes, the attenuator does control both channels. It is pretty cool. The only thing that is quirky about it in my opinion is that it seems to be a voltage divider so you get a little bit of noise as you switch between volume clicks.
I am sure someone else can explain that a little better than me
Nuuk, are you referring to the opening in the front of the case? If so, it is just an opening that I think Brian had intended to use for his controller screen. He is lending me the case until I finish mine.
Yes, the attenuator does control both channels. It is pretty cool. The only thing that is quirky about it in my opinion is that it seems to be a voltage divider so you get a little bit of noise as you switch between volume clicks.
I am sure someone else can explain that a little better than me
You can probably get rid of that noise by adding a 100k or so resistor between the amp input pin and gnd. what happens is when there is no connection at all between the input and gnd there is a buzz in the amp. resistor fixes that.
how are digital volume controls? I have that one from maxim that uses pushbuttons. do they sound better than a pot or attenuator?
-Mike
how are digital volume controls? I have that one from maxim that uses pushbuttons. do they sound better than a pot or attenuator?
-Mike
The chassis was designed for relay based volume control with a digital front end. Here is a picture of the chassis, with the volume control front end board.
The jacks on the back are Cardas, which you can order now from the group order taking place, organized by Rodd Yamash*ta. I got mine last year during the order.
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Brian
The jacks on the back are Cardas, which you can order now from the group order taking place, organized by Rodd Yamash*ta. I got mine last year during the order.
--
Brian
ENIGMA said:
Yes, the attenuator does control both channels. It is pretty cool. The only thing that is quirky about it in my opinion is that it seems to be a voltage divider so you get a little bit of noise as you switch between volume clicks.
I am sure someone else can explain that a little better than me
Nice work!
I think that it isn't MBB type.
Mine is very cheap MBB switch and works wonderfully. No clicks/cracks at all.
/Greg
One reason that I like to use the switch mech/wafer designs is that they are quite easy to clean with a cotton bud dipped in isopropyl alcohol.
And let's clear up one thing for any newbies reading this. MBB (make-before-break) switches (also known as shorting types) are mandatory for attenuators. The other type (break-before-make or non-shorting) will result in pops and clicks when you change volume.
Nice work, much better than my first attempt.
BTW, not sure if its relavent to your name, but I own all the Enigma albums, Michael Cretu is so freakin creative, I even have The Invisble Man. I have pretty much bought the last 3 albums and that Invisible Man on faith, and every time I am very much surprised at the freshness.
BTW, not sure if its relavent to your name, but I own all the Enigma albums, Michael Cretu is so freakin creative, I even have The Invisble Man. I have pretty much bought the last 3 albums and that Invisible Man on faith, and every time I am very much surprised at the freshness.
This is the same circuit that will be used with the group order. You can thank Eric (enigma) for getting me to actually take time to listen to the gainclone, and motivate me to organize a group order for others.
I helped him finish this and am letting him borrow my chassis (with power supply), and volume control until he makes his own chassis.
This thing sounds great. I hauled my Seas Thor TL speakers into lab and listened along with my cdpro2 that I am working on. This amplifier sounds great, and really kills my Leach amp.
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Brian
I helped him finish this and am letting him borrow my chassis (with power supply), and volume control until he makes his own chassis.
This thing sounds great. I hauled my Seas Thor TL speakers into lab and listened along with my cdpro2 that I am working on. This amplifier sounds great, and really kills my Leach amp.
--
Brian
Attachments
phugger said:
24AWG can handle maybe four amps when used for chassis wiring (meaning short runs, maybe 4 to 6 inches). I have used wire from a length of Cat5 (also 24AWG) for a few GCs without any problem at all.
I would think you would be OK with 26 if you didn't have any long runs. Also don't use it to run power from a separate power supply case, get something at least around 22 or even 20 for that.
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