Sorry my bad, it has been corrected.
How is that different than the above built TX? With both "ends" covered with the chassis?
Just trying to learn, not argue.
AudioSan,
How many uF are you planning on using?
Ron
How is that different than the above built TX? With both "ends" covered with the chassis?
Just trying to learn, not argue.
AudioSan,
How many uF are you planning on using?
Ron
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on that build, the transformer is only connected to the inner plate.
on the v3, it will be 4x68.000uF pr monoblock.
for the v2 it will be 4x33.000uF pr channel.
on the v3, it will be 4x68.000uF pr monoblock.
for the v2 it will be 4x33.000uF pr channel.
BigE There was just one piece 45" long I cut it on my table saw I had to cut it from both sides with multiple passes. There was a lot of holes that I filled with jb weld
it worked out fairly well. Painted the peices with stove paint and strap them together
with a 3/8" gap so fins don't touch in the center
I don't get the ground loop?
it worked out fairly well. Painted the peices with stove paint and strap them together
with a 3/8" gap so fins don't touch in the center
I don't get the ground loop?
Ground loop was from an incorrect transformer mounting design I had posted, I removed the reference, it is correct now.
AudioSan, or whomever,
Is that because the mounting bolt that goes through the center is connected EM through the bolt? Like making a screwdriver magnetic? What if the bolt were Nylon?
Ron
AudioSan, or whomever,
Is that because the mounting bolt that goes through the center is connected EM through the bolt? Like making a screwdriver magnetic? What if the bolt were Nylon?
Ron
Tea-Bag, I'm still learning, so please explain what is a better configuration:
I'm building a dual-mono setup (1 toroid with 4*25V feeding 2 PSU boards)
Each mono will have a dual rectifier bridge, so I will have a total of 4 rectifiers to feed. My toroid will have 4 pairs. So it is better to:
1) have one pair to one rectifier bridge, or
2) double pairs to a rectifier bridge (which would have 2 pairs feeding 2 rectifier bridges).
Thanks!
Hi Guys,
I got my V2 proto's from the store ,going today,Playing very well happy with the results,Everything fell right into specs,bias adjustments are precise,adjust right to it,I don't have a distorion analizer but I got the bias real close and used P3 and my meter across the speaker to adjust P3 got it to.0001 mili's,dc offset,I'm happy!
Been running about 2 hrs ac/dc steevie Ray,Fets are running about 110 F at 300 mils on the bias,
I might build some more of these,lol.
I had a little problems in the begining but I caused them CRS kicking in ,lol.But all the markings ,silk are good ,I like the big traces too,let's you desolder a few times without the trace leaving the board,It's dead quiet ,and sounds good ,good bass!
I did get some help from Variac and AudioSan,thier posts were very helpful and also all the fine people on this site!THANKS
I used some new caps from Apex too.worked out well I used 8x33,000 and 2 I had 10,000 that's per channel,lol.284,000 if I did that right!
Have a good Day!
NS
I got my V2 proto's from the store ,going today,Playing very well happy with the results,Everything fell right into specs,bias adjustments are precise,adjust right to it,I don't have a distorion analizer but I got the bias real close and used P3 and my meter across the speaker to adjust P3 got it to.0001 mili's,dc offset,I'm happy!
Been running about 2 hrs ac/dc steevie Ray,Fets are running about 110 F at 300 mils on the bias,
I might build some more of these,lol.
I had a little problems in the begining but I caused them CRS kicking in ,lol.But all the markings ,silk are good ,I like the big traces too,let's you desolder a few times without the trace leaving the board,It's dead quiet ,and sounds good ,good bass!
I did get some help from Variac and AudioSan,thier posts were very helpful and also all the fine people on this site!THANKS
I used some new caps from Apex too.worked out well I used 8x33,000 and 2 I had 10,000 that's per channel,lol.284,000 if I did that right!
Have a good Day!
NS
No Smoking, No Smoking? 110F, I guess not but, you have room for higher bias and better sound 😀 From my experimentation, you should be able to get to 130F-150F on the FETs before any worries (probably 55C on the heat sink is 150F on the FET). I see about 10 degrees from FET to sink, YMMV.
"mils"? .001 inch? Right, mV 😉
Prompts my question:
Does "mil" come from milli inch?
Or something completely different?
We use "thou" as short for thousandth of an inch.
Let's see, my dual mono F4/BA3 output stage has 33k/33k .1ohm 33k/33k for all 4 rails. That's 132,000uF/rail. 528,000uF for the 2ch 😀
I don't mind it dimming the lights when I turn it on, but I hate it when the music dims the lights!
I don't mind it dimming the lights when I turn it on, but I hate it when the music dims the lights!
Supprising you would even bother with our antiquated "inch" Andrew. I don't really know. We very often use thou and I accept that but we also use mil and I have no idea why. It's wrong?
But, then we would be jumping to microns and micro inches??? I think I'll give up on this explaination before i'm 10X to deep 😀
But, then we would be jumping to microns and micro inches??? I think I'll give up on this explaination before i'm 10X to deep 😀
Just as well I didn't ask for an explanation of where circular mils came from !
And certainly nothing to do with "micron"
And certainly nothing to do with "micron"
dazed2 has more than that in his plain old F5. I'm sure there are others with still higher amounts.
Is there a point of useless returns? 1/2 Farad? 1 F?
Andrew
My father was an aerospace machinist his entire professional life. He often spoke of "Mils" and was referring to "thousandths of an inch", I wish he were still here to ask why?
Country should have gone metric when I was a teenager..........dumb Yanks.
Andrew
My father was an aerospace machinist his entire professional life. He often spoke of "Mils" and was referring to "thousandths of an inch", I wish he were still here to ask why?
Country should have gone metric when I was a teenager..........dumb Yanks.
From Oxford Dictionary of Units and Measures:
Mil:
A 1 000th part, such that 1 000 of them make a whole.
Mil:
A 1 000th part, such that 1 000 of them make a whole.