Choky,
Zemgrish deciphered and understood. I have the capability of measurement, which as you said is pretty much necessary for a project like this. Otherwise, why even do it? Thank you for doing what you have done.
GG
Zemgrish deciphered and understood. I have the capability of measurement, which as you said is pretty much necessary for a project like this. Otherwise, why even do it? Thank you for doing what you have done.
GG
that one lost in translation 
I can think of 7 different answers I can give ......
🙂
pcbs are on the way to me , majority of parts I already have , rest ordered
main obstacle is regular 2-4 weeks period of pcbs being Customized, before reaching me
in this part of world , it seems that pcb factories in China are single logical source , again - having just quality in mind
I know Pa is having local source and PL/FW pcbs are top notch ; but , if I only compare size of Serbia vs. USA , no wonder that I don't have local vendor of same quality ; I have few (leftovers of now defunct big electronic companies) , but even in quantity prices are outrageous
I can think of 7 different answers I can give ......
🙂
pcbs are on the way to me , majority of parts I already have , rest ordered
main obstacle is regular 2-4 weeks period of pcbs being Customized, before reaching me
in this part of world , it seems that pcb factories in China are single logical source , again - having just quality in mind
I know Pa is having local source and PL/FW pcbs are top notch ; but , if I only compare size of Serbia vs. USA , no wonder that I don't have local vendor of same quality ; I have few (leftovers of now defunct big electronic companies) , but even in quantity prices are outrageous
Yes, some factories in China have not resumed work. Materials, electronic components, and materials have all risen. Prices have risen.
The good news,
when opening a box of 2SK182ES tonight,
when preparing to measure 2SK182ES,Found 2 boxes of THF-51S,
those who need THF-51S, can leave a message,
I have not paired yet
I need to pair again when needed
when opening a box of 2SK182ES tonight,
when preparing to measure 2SK182ES,Found 2 boxes of THF-51S,
those who need THF-51S, can leave a message,
I have not paired yet
I need to pair again when needed
Power Supply for Singing Bush
For all iterations , target positive rail is 60Vdc , plain logic and experience sez that's 48Vac secondary Donut
Schade (Full Mos) is having Iq in range of 3A/ch. ......... say 300VA Donut as minimum per channel
THF51/2SK180/2SK182 - having Iq in range of 2A2 , say 250VA Donut as minimum per channel
caps - 75Vdc rated, as minimum
cap bank for one channel - CRC fashion , 20mF-0R1/3W-20mF , as absolute minimum ; 30mF-0R1/3W-30mF is better ; more , the merrier
For all iterations , target positive rail is 60Vdc , plain logic and experience sez that's 48Vac secondary Donut
Schade (Full Mos) is having Iq in range of 3A/ch. ......... say 300VA Donut as minimum per channel
THF51/2SK180/2SK182 - having Iq in range of 2A2 , say 250VA Donut as minimum per channel
caps - 75Vdc rated, as minimum
cap bank for one channel - CRC fashion , 20mF-0R1/3W-20mF , as absolute minimum ; 30mF-0R1/3W-30mF is better ; more , the merrier
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mmmmmmmmmm ....... Shiny!!
be sure to have some slits under the heatsinks
I heard lately that they're happier having some air circulating
🙂
be sure to have some slits under the heatsinks
I heard lately that they're happier having some air circulating
🙂
I don't have these , but I'm using stepped drills for years , and sort of Adjustable Circle Hole Cutter for even longer
of course that smaller and bigger bench drills are must
of course that smaller and bigger bench drills are must