NP gave all his designs in public ;
anyone thinking that high res pictures at 6moons and few other places are published without his blessings ?
so - if he is certain that 300VA toroid + 8 x 15mF/25V is good enough for 160W of dissipation and 4K of greenies , I have no objection .
that doesn't stop me to use 2 x 250VA or even 2x400VA toroids and (4+4)x 33mF/25V for my Papamp
there is always need for book and calc and some brain ; but sometimes too much of a brain isn't smartest thing to have
worst drek gadgets I had "pleasure" to see and/or repair were over-engineered piece of drek , not result of bean-counter's efforts
usually bean-counter engineers are way more capable than spoiled brat ones .
just for illustration - absolutely worst radio production (mix) deck I had opportunity to work with , see and repair - is one made by ( now defunct) local factory , called Lola Audio ; full with Penny Giles , Neutrik , Alps , Philips , etcetera jewels ..... it sounds as drek , works the same , buzz the same ....... ground loops , not enough headroom ......
and I always had a thoughts how decent and clever Studer engineers could make 3 proper decks with same amount of hardware , all whistles and bells included
so - take NP's visible work as shown path - " go , boy - make that better for your self ; I have other ,more important and fun , things to do . "
anyone thinking that high res pictures at 6moons and few other places are published without his blessings ?
so - if he is certain that 300VA toroid + 8 x 15mF/25V is good enough for 160W of dissipation and 4K of greenies , I have no objection .
that doesn't stop me to use 2 x 250VA or even 2x400VA toroids and (4+4)x 33mF/25V for my Papamp
there is always need for book and calc and some brain ; but sometimes too much of a brain isn't smartest thing to have
worst drek gadgets I had "pleasure" to see and/or repair were over-engineered piece of drek , not result of bean-counter's efforts
usually bean-counter engineers are way more capable than spoiled brat ones .
just for illustration - absolutely worst radio production (mix) deck I had opportunity to work with , see and repair - is one made by ( now defunct) local factory , called Lola Audio ; full with Penny Giles , Neutrik , Alps , Philips , etcetera jewels ..... it sounds as drek , works the same , buzz the same ....... ground loops , not enough headroom ......
and I always had a thoughts how decent and clever Studer engineers could make 3 proper decks with same amount of hardware , all whistles and bells included
so - take NP's visible work as shown path - " go , boy - make that better for your self ; I have other ,more important and fun , things to do . "
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I think FW uses Pansonic TSUP series 85C caps. About $3-4 each in small quantities.
you need to look a specced current
makes a difference on price too
I remember a price of twice what you
but then, my memory, well
Hey, i'm Dutch, i shag around.
Ha, but bet you a nickel i can name 15 minimum part numbers, type, manufacturer, source adress of this one : http://www.tessendorf.de/images/classabig.jpg
(speaking of Fuk-U-shima, seen a CRC with Roederstein EY electrolytics and MPC71 metalband resistors before ?)
now I know why ya Klompenwearing ppl are so wakoo , even your MotoGP is different to all other - sole one running on Saturday ( instead on Sunday , as in other parts of brownie globe ) , so that you are free for early Sunday shag
gimme a brake - that's just filthy rich version of MF A1 drek
regarding MPC - every second mediocre wallmart japamp have them ; maybe I must be impressed ?
Your thoughts on this one lads.
I found an Australian Transformer Company, that makes this little number:
300VA Toroid Transformer
I was thinking of using 1 per channel of my F5 with the secondaries in parallel.
Any comments before I buy?
Cheers
Dean
I found an Australian Transformer Company, that makes this little number:
300VA Toroid Transformer
I was thinking of using 1 per channel of my F5 with the secondaries in parallel.
Any comments before I buy?
Cheers
Dean
It did make sense when I wrote it, I swear. I'm not going to pretend I know what I'm doing, thats why I asked
I was under the impression that wiring the dual secondaries in parallel allowed twice the current delivery at the same voltage. Pass recommends a unit capable of delivery 10A peaks so.......... 1=8 ~ 2=16?
Heeeeeeelp.... I only need to buy the transformers and I can start testing / electrocuting myself ?!?!?!?
cheers
Dean
I was under the impression that wiring the dual secondaries in parallel allowed twice the current delivery at the same voltage. Pass recommends a unit capable of delivery 10A peaks so.......... 1=8 ~ 2=16?
Heeeeeeelp.... I only need to buy the transformers and I can start testing / electrocuting myself ?!?!?!?
cheers
Dean
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you need two secondaries to have symmetric PSU
F5 , in stock form - with 2x18Vac secondaries , will have around +/-22V after rectifier and smoothing caps .
+/-22V means - symmetric PSU , so there is no way that you can use parallel anything .
Papa use ~ 300VA xformer common for both channels , but xformer is of decent quality .
dunno is linked one of same quality , but if you use 2 of them ,there is possibility that they will be fine , even if of lesser quality than FW stuff .
yes - buy them and enjoy .
but - you really need to learn some basics ( how to read schematic , for start) - not to please me or anyone , but to be able to make something ( with help ) , without hasta la vista babe ......
F5 , in stock form - with 2x18Vac secondaries , will have around +/-22V after rectifier and smoothing caps .
+/-22V means - symmetric PSU , so there is no way that you can use parallel anything .
Papa use ~ 300VA xformer common for both channels , but xformer is of decent quality .
dunno is linked one of same quality , but if you use 2 of them ,there is possibility that they will be fine , even if of lesser quality than FW stuff .
yes - buy them and enjoy .
but - you really need to learn some basics ( how to read schematic , for start) - not to please me or anyone , but to be able to make something ( with help ) , without hasta la vista babe ......
"The power supply of the tested amplifier is +/-24 volts and should be rated at 6 amps
continuous duty, and more than 10 amps peak per channel".
I read this as a literal guide and was looking for a toroidal that delivered as such.
Again, I am happy to just use what works, but its going to be cheaper to buy from aus so i need to find the right device on there site.
https://www.tortech.com.au/
Cheers
Dean
continuous duty, and more than 10 amps peak per channel".
I read this as a literal guide and was looking for a toroidal that delivered as such.
Again, I am happy to just use what works, but its going to be cheaper to buy from aus so i need to find the right device on there site.
https://www.tortech.com.au/
Cheers
Dean