He might be protecting the people and not the equipment.
I know some designers who "ONLY" use fuses for peoples sake and not the gear. They claim that they can hear the difference between different amperage fuses...
Like always we can't say what they can and can not hear but I did change a fuse on him one time and he did tell me that I need to go back to his value.. He had no idea I changed the fuse...
Funny thing is his piece I have has been running for over 10 yrs without a hic-up. If any part did fail the entire device would self destruct before the 10 amp fuse blew, but it has been solid so far.
I know some designers who "ONLY" use fuses for peoples sake and not the gear. They claim that they can hear the difference between different amperage fuses...
Like always we can't say what they can and can not hear but I did change a fuse on him one time and he did tell me that I need to go back to his value.. He had no idea I changed the fuse...
Funny thing is his piece I have has been running for over 10 yrs without a hic-up. If any part did fail the entire device would self destruct before the 10 amp fuse blew, but it has been solid so far.
This is correct. If these fuses ever pop, it would be to an already catastrophic event. The 4A would be a fast blow fuse value, btw, as was just an off the cuff value.
Cases-- Chassis's
I am looking to put a package together and need to know
the size of the Chassis/Box needed.
I have found some good deals on both Plastic and Alum
cases.
Plastic cases 1.6MM Thick
8 1/2" Length 5 1/2" Width and 3 1/4" Tall
7.44" Length 5.43" Width and 2.62" Tall
Flanged Alum case
6 3/4" Length 4 3/4" Width and 4 1/8" Tall
Will any of these work ? ? ? ? ?
Steve @ Apex Jr.
I am looking to put a package together and need to know
the size of the Chassis/Box needed.
I have found some good deals on both Plastic and Alum
cases.
Plastic cases 1.6MM Thick
8 1/2" Length 5 1/2" Width and 3 1/4" Tall
7.44" Length 5.43" Width and 2.62" Tall
Flanged Alum case
6 3/4" Length 4 3/4" Width and 4 1/8" Tall
Will any of these work ? ? ? ? ?
Steve @ Apex Jr.
Steve,
Those will all work. We are looking at dimensions on the board of about 3 wide 4 long and a bit over 2 tall. NOW the problem is a heatsink. As long as a heatsink can sit on the chip (not much sink is needed) and still not touch the RCA in and Speaker outs then I think this would work to house each amp independently.
Then a separate enclosure would be needed for the toroid and fuse/switch/plug
Uriah
Those will all work. We are looking at dimensions on the board of about 3 wide 4 long and a bit over 2 tall. NOW the problem is a heatsink. As long as a heatsink can sit on the chip (not much sink is needed) and still not touch the RCA in and Speaker outs then I think this would work to house each amp independently.
Then a separate enclosure would be needed for the toroid and fuse/switch/plug
Uriah
Sorry to inject group buy stuff in here
We are looking for these following people to send their contact information. Need names/address/DIY ID/email
bacood2000
warp_foo
samsagaz
tube-arama
bandol83
vglaso
nvrgdenuf
Daveze
mikesnowdon
aquaman
jims
jonclancy
Spotticus
If you guys are around and still interested please notify me.
Uriah
We are looking for these following people to send their contact information. Need names/address/DIY ID/email
bacood2000
warp_foo
samsagaz
tube-arama
bandol83
vglaso
nvrgdenuf
Daveze
mikesnowdon
aquaman
jims
jonclancy
Spotticus
If you guys are around and still interested please notify me.
Uriah
Not recommended, unless you add another fuse in the amp case. I think all of the cases mentioned would be too small actually.
Re: Cases-- Chassis's
Steve in case you missed it (PUN intended) this was the post of the dimensions:
http://www.diyaudio.com/forums/showthread.php?postid=1686678#post1686678
Apex Jr said:
Steve in case you missed it (PUN intended) this was the post of the dimensions:
http://www.diyaudio.com/forums/showthread.php?postid=1686678#post1686678
Hi,
using "the Penasa" for years now, 10k is o.k. for the amp but there are sources out there which can't cope with 10k. Even in our days that's possible! If you have that problem, you will experience a lack of bass.
22k are better under that respect - the universality of the amp. the best way are 50k to 100k but you will need a buffer with that. I am using the B1 built on stripeboard right now (the ZM'ed version with the symmetrican PS) and I am glad.
Best regards
Flo
using "the Penasa" for years now, 10k is o.k. for the amp but there are sources out there which can't cope with 10k. Even in our days that's possible! If you have that problem, you will experience a lack of bass.
22k are better under that respect - the universality of the amp. the best way are 50k to 100k but you will need a buffer with that. I am using the B1 built on stripeboard right now (the ZM'ed version with the symmetrican PS) and I am glad.
Best regards
Flo
http://picasaweb.google.com/lh/photo/anJwf95khqvZYJ-ccf3NAA?feat=directlink
http://picasaweb.google.com/lh/photo/qmkiOxH6ZlgpvuPctChD2w?feat=directlink
Shots of our boards that arrived this morning. WOW the shipping was fast.
Uriah
ps if anyone is interested in some kits please know that we have had several cancellations and are trying to drum up some business. Please shoot me an email if you are interested and we will reply with a paypal invoice. Kits are 65 a pair.
http://picasaweb.google.com/lh/photo/qmkiOxH6ZlgpvuPctChD2w?feat=directlink
Shots of our boards that arrived this morning. WOW the shipping was fast.
Uriah
ps if anyone is interested in some kits please know that we have had several cancellations and are trying to drum up some business. Please shoot me an email if you are interested and we will reply with a paypal invoice. Kits are 65 a pair.
Absolutely precious little girl. Appears to be a happy person.
Side note: I myself don't post my kids pictures on the internet. Lots of crazies out there.
Side note: I myself don't post my kids pictures on the internet. Lots of crazies out there.
Troy,
Yeah, especially the homeless ones. But its the homeless guys with internet access and a penchant for DIY audio that really scare me 🙂
Uriah
ps: I hear what you are saying. My only excuse is I am a stay at home Dad and she gets lots of attention/never out of my sight so I feel a bit more safe than your average working parent.
Yeah, especially the homeless ones. But its the homeless guys with internet access and a penchant for DIY audio that really scare me 🙂
Uriah
ps: I hear what you are saying. My only excuse is I am a stay at home Dad and she gets lots of attention/never out of my sight so I feel a bit more safe than your average working parent.
Ha! Me too. I work from home and watch my kids pretty closely.
Moved into a rental house across the street from the kids school this week. Now if I'm on a call or in a customers network my son (11 yrs) can walk across the street to the house.
Been 3 yrs into a divorce and it is finally done.
I guess now I can change my location.
09 looks to be a new start....
Moved into a rental house across the street from the kids school this week. Now if I'm on a call or in a customers network my son (11 yrs) can walk across the street to the house.
Been 3 yrs into a divorce and it is finally done.
I guess now I can change my location.
09 looks to be a new start....
Wow across from school is fantastic!
Okay enough OT but yes I hope 09 is better for us, the country and the world. I think we all just need a freakin break already.
Uriah
Okay enough OT but yes I hope 09 is better for us, the country and the world. I think we all just need a freakin break already.
Uriah
kit
Hi Uriah,
I'm interested in kit but my account is under moderation and i cannot send emails.
Kan you email me a paypal invoice?
Thanks.
Hi Uriah,
I'm interested in kit but my account is under moderation and i cannot send emails.
Kan you email me a paypal invoice?
Thanks.
If anyone needs toroids for this amp or any other that would take 24V 160VA let me know. 22 dollars each if we get orders for 30.
Sorry for more OT over here, but it just makes sense that some people might see this and need the toroids.
Uriah
Sorry for more OT over here, but it just makes sense that some people might see this and need the toroids.
Uriah
http://cgi.ebay.com/LM318-LM3886-ST...3336134QQihZ002QQcategoryZ12050QQcmdZViewItem
Not even a hint as to where it was ripped off from (Mauro).
Nor with this:
http://cgi.ebay.com/CLASS-A-POWER-AMPLIFIER-KIT---BASED-ON-PASS-ALEPH-MINI!_W0QQitemZ350147777191QQcmdZViewItemQQimsxZ20090102?IMSfp=TL090102118005r11550
Not even a hint as to where it was ripped off from (Mauro).
Nor with this:
http://cgi.ebay.com/CLASS-A-POWER-AMPLIFIER-KIT---BASED-ON-PASS-ALEPH-MINI!_W0QQitemZ350147777191QQcmdZViewItemQQimsxZ20090102?IMSfp=TL090102118005r11550