and reform electrolytic capacitors that have been stored/transported since manufacture, to bring them back to specification before fitting them to a circuit.
the rig you request consists of a DC power supply with a voltage ~=capacitor voltage rating.
A 100k resistor and three croc ended test leads.
A 63V capacitor will charge initially @ ~0.6mA falling to 0.2mA when the capacitor is ~2/3rds charged.
Leakage will extend the reforming time from <24hrs to infinity, unless you arrange for the charging voltage is exceed the cap rating by a significant margin.
This higher voltage will require much reforming experience with each type and brand of capacitor before you could safely leave them overnight.
A 100k resistor and three croc ended test leads.
A 63V capacitor will charge initially @ ~0.6mA falling to 0.2mA when the capacitor is ~2/3rds charged.
Leakage will extend the reforming time from <24hrs to infinity, unless you arrange for the charging voltage is exceed the cap rating by a significant margin.
This higher voltage will require much reforming experience with each type and brand of capacitor before you could safely leave them overnight.
Member
Joined 2006
The 3 led strings are upping the current as much as they widen from CCS Mosfet Vgs and vice versa. In your case you just may get a little less current running in the regs, which is a multiple of what is needed anyway by enough times.
The Vout gave me enough contention around the 10V mark +/- 0.5V-1V. That is not about working, it could work in a wide range.
The Vout gave me enough contention around the 10V mark +/- 0.5V-1V. That is not about working, it could work in a wide range.
Member
Joined 2006
Thanks massimo, will put this together first once Tea-Bag's board is in. Yeah, could try out the SRPP or the CCS version later, should be easy to swap around
BTW, could you point out the link to that MJ article if available on line? I don't think you can find MJ's articles on line, but it was published on MJ 2002/6. If you can read Japanese, I could scan the whole article and send you by email.
3 years ago I briefly described the schematics here: http://www.diyaudio.com/forums/pass-labs/75326-j-fet-zen-srpp.html see post #14
3 years ago I briefly described the schematics here: http://www.diyaudio.com/forums/pass-labs/75326-j-fet-zen-srpp.html see post #14
Another one is alive.
I used the parts from the BOM and matched 170's from Spencer and all worked the first time. The output shows 0 to 1 mV.
The unit tested ok on my 6v6SET. I listened just for a few minutes as it a test setup so I have no listening impression yet.
And now for the casing...
Thanks for this project!!
Jeroen
I used the parts from the BOM and matched 170's from Spencer and all worked the first time. The output shows 0 to 1 mV.
The unit tested ok on my 6v6SET. I listened just for a few minutes as it a test setup so I have no listening impression yet.
And now for the casing...
Thanks for this project!!
Jeroen
Attachments
Banned
Joined 2002
case, from here
Chassis case item
Im going to be buying 1 of these for my B1,
Chassis case item
Im going to be buying 1 of these for my B1,
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Last edited:
case, from here
Chassis case item
Im going to be buying 1 of these for my B1,
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Very nice case/chassis. I'd be interested in a few...
How about a group buy on these cases? I'm sure we can set that up.
Banned
Joined 2002
I tried that no one was interested.
see,
http://www.diyaudio.com/forums/group-buys/154291-pre-poweramp-case-group-buy.html#post1993005