Aleph 5 Power Supply - Page 6

Coulomb · 9th January 2003, 08:09 PM

Quote:

Originally posted by chris ma
Hi,

Got some more info regarding the coils since last Christmas.

It is a 14awg 2mH air coil.
Minimum order 50 @ $10.80cdn plus tax.
Lead time 1 week.
Cash, cheque or money order, no credit cards.
Due to the weight of the coils, I recommend this only for the folks around Toronto area.

How do you guys want to do it? I can paid and pick them up first and we can meet downtown and divide them up among us and deal with cash only.
May be Sunday lunch in a pub somewhere easy for everyone to find and park?

So it will be $12.42cdn each.
I am buying 12, and we need at least 50 to make the order valid.
Any other suggestion?
Chris

You could try starting a Wiki so people could sign up for thier coils. Use Pay Pal to collect the money, and Postal service shipping should be worthwhile considering the cost savings.

Anthony

I will take 6

Coulomb · 23rd January 2003, 08:07 PM

Quote:

Originally posted by chris ma
Hi,

Got some more info regarding the coils since last Christmas.

It is a 14awg 2mH air coil.
Minimum order 50 @ $10.80cdn plus tax.
Lead time 1 week.
Cash, cheque or money order, no credit cards.
Due to the weight of the coils, I recommend this only for the folks around Toronto area.

How do you guys want to do it? I can paid and pick them up first and we can meet downtown and divide them up among us and deal with cash only.
May be Sunday lunch in a pub somewhere easy for everyone to find and park?

So it will be $12.42cdn each.
I am buying 12, and we need at least 50 to make the order valid.
Any other suggestion?
Chris

Hello Chris did you ever get the Inductors, I am still looking for 6.

Anthony

Philo · 23rd January 2003, 08:13 PM

Anthony,
What is the DCR of these inductors?

woody · 23rd January 2003, 10:13 PM

You might also check out the prices on inductors at Zalytron,
I think ( the one and only) has already mentioned them but
I will give them another plug. There price on a ERSE 14 gage
air core in the 2mh size is $11.77 US and they only have a $50
minimum order.

Coulomb · 24th January 2003, 04:37 AM

Quote:

Originally posted by Philo
Anthony,
What is the DCR of these inductors?

I am not sure Chris Ma had the details.

Anthony

Philo · 24th January 2003, 05:10 AM

Bob,
Thanks for the lead. Unfortunately, it has the same approx resistance (and in turn, same voltage drop) as the other inductor that is dragging the voltage down. The ferrite core one shows promise though, but I have never used one in PSU, only air cores. Any audible difference?

kirc · 24th January 2003, 06:59 AM

I have one question about Aleph 5 power supply.
Mr. Nelson use 4x25.000uF for stereo amp. I'll use 2x69000uF/50V capacitor made by Sprague (36D). Are these caps will be enough for stereo Aleph 5 without additional inductors ???

I allready have 750VA rating toroid transformer, but it's not quite good (it's buzz) and I'll replace it with 900VA rating toroid transformer with 4x25V sec. This must be more that enough. ?

best regards,
LEON

Mad_K · 24th January 2003, 11:07 AM

Leon:

You're in the green with those caps and toroid.

Minimum is 600VA and 100000uF.

kristijan-k · 24th January 2003, 11:46 AM

Hello kirc,

Try to use the inductors in the power supply.
They are well worth it to spend extra money on them, also
I think that they are very cheap in Slovenia, like in Croatia.
The 1.2 mH and up inductors should be used for the best results.
You can use those that are normally used in the speakers crossovers.

Best regards,
Kristijan Kljucaric
http://web.vip.hr/pcb-design.vip

Scribble · 24th January 2003, 11:56 AM

So a 1kv for a stereo aleph 5 would be adequate?

ie. one 1kv transformer and assorted bank of caps would be adequate to run both channels of the aleph 5?

Joel

23rd January 2003, 08:13 PM	#53
Philo diyAudio Member Join Date: Jul 2002 Location: Ever sunny San Diego	Anthony, What is the DCR of these inductors? __________________ Philip "If you didn't make it with your own two hands, its not really yours".

24th January 2003, 05:10 AM	#56
Philo diyAudio Member Join Date: Jul 2002 Location: Ever sunny San Diego	Bob, Thanks for the lead. Unfortunately, it has the same approx resistance (and in turn, same voltage drop) as the other inductor that is dragging the voltage down. The ferrite core one shows promise though, but I have never used one in PSU, only air cores. Any audible difference? __________________ Philip "If you didn't make it with your own two hands, its not really yours".

24th January 2003, 06:59 AM	#57
kirc diyAudio Member Join Date: Aug 2001 Location: Slovenia	My Aleph 5 PS I have one question about Aleph 5 power supply. Mr. Nelson use 4x25.000uF for stereo amp. I'll use 2x69000uF/50V capacitor made by Sprague (36D). Are these caps will be enough for stereo Aleph 5 without additional inductors ??? I allready have 750VA rating toroid transformer, but it's not quite good (it's buzz) and I'll replace it with 900VA rating toroid transformer with 4x25V sec. This must be more that enough. ? best regards, LEON __________________ Music is a part of my life, DIY is my life.

24th January 2003, 11:07 AM	#58
Mad_K diyAudio Member Join Date: Sep 2002 Location: Norway	Leon: You're in the green with those caps and toroid. Minimum is 600VA and 100000uF. __________________ Mads K

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23rd January 2003, 10:13 PM	#54
woody diyAudio Member Join Date: Jan 2002 Location: Tyrone Ga. U.S.A.	You might also check out the prices on inductors at Zalytron, I think ( the one and only) has already mentioned them but I will give them another plug. There price on a ERSE 14 gage air core in the 2mh size is $11.77 US and they only have a $50 minimum order.

24th January 2003, 11:46 AM	#59
kristijan-k diyAudio Member Join Date: Mar 2002 Location: CROATIA	Hello kirc, Try to use the inductors in the power supply. They are well worth it to spend extra money on them, also I think that they are very cheap in Slovenia, like in Croatia. The 1.2 mH and up inductors should be used for the best results. You can use those that are normally used in the speakers crossovers. Best regards, Kristijan Kljucaric http://web.vip.hr/pcb-design.vip

24th January 2003, 11:56 AM	#60
Scribble diyAudio Member Join Date: Dec 2002 Location: Western Australia	So a 1kv for a stereo aleph 5 would be adequate? ie. one 1kv transformer and assorted bank of caps would be adequate to run both channels of the aleph 5? Joel

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