mpmarino said:bump is bump.
........
I am finding that I probably want to build the pumpkin sooner. You had mentioned an error or two in the pcb you posted much earlier. If there were errors, could you be specific as to where they are? Maybe a tip where I could get the unobtaniumumum bugs? .............
poor ZM between crazy Yank and crazy Dutchie
anyway . .... that pcb haven't any mistake , at least not any in Oly's pattern ; mistakes were made on pcb vendor side....dunno , maybe just temp program glitch or something like that; it doesn't matter much, just because just 3 pcs are made,for prototyping.
in any case - that pcb is not good anymore,just because initial schmtc is not valid anymore, and pcbs were made for it ; there are few radical changes in schm, so pcb also need radical change .
also- my goal was to make Pumpkin with non- unobtaniumumumumumum bugs ; if you check - you'll probably find all parts in first Tobacco store ( say my hello to Harvey , anyway ).
I made both Pumpkin main and reg schematics published ( here, where else) ; I'll not share pcb patterns , just because I intent to became dreky Crez selling them ..........
(tip: rest of story can be concluded via PM)
jacco vermeulen said:
During an arguement with the g/f yesterday, i noticed she was heavily biased when she caught fire.
To improve my chances for pole position at the 2007 diyA Twit election, i decided to put NP on my ignore list.
Btw, who are you talking to, Mark ?
you lost me there............
Oly call this "demonstration of force" , meaning that is unnecessary overkill .
I like it
Speaking of overkill, didn't you forget to cascode the current source ...
MRupp said:
Speaking of overkill, didn't you forget to cascode the current source ...
?
Yeah, I wasn't clear was I? I was talking to Choky primarily but appreciate reply from any one of you guys.Btw, who are you talking to, Mark ?
Not severe enough - who else can I send over here ....poor ZM between crazy Yank and crazy Dutchie
Whatever your reasons - they are respected...I'll not share pcb patterns , just because I intent to became dreky Crez selling them ..........(tip: rest of story can be concluded via PM)
I'll wait
none of those left here either!you'll probably find all parts in first Tobacco store
mpmarino said:......................
none of those left here either!
what?
you at least saw Harvey?
anyway- J309/310 aren't rare ,at least in Europe
same for LM thingies
for little BC critters use whatever you have in drawer ........
so- my plan is to sell combos in which you can find these goodies:
pcb preamp channel - pcs 2
pcb ± 36V ser/shunt reg - pcs 2
J310 matched pair x 2 (so- 2 + 2)
BC546C matched pair x 2 (so- 2 + 2)
J310 (CCS for led string ) kom 2
LM336Z-5 - pcs 4
BF245C - pcs 4
all that ( or just ?! ) for 100E
in price is included worldwide shipping
pcbs - two sided ,blue stop lack ,white overlay
as I told ya before......... PM ..........
Zen Mod said:J310 (CCS for led string ) kom 2
ya mean: J310 (CCS for led string ) pcs 2
Zen Mod said:
yup
ya....... married man!
Vix married ?? My concolences yet another fruitfull diy life gone down the drain
Magura
Magura said:
Vix married ?? My concolences yet another fruitfull diy life gone down the drain
Magura
July 1. was D-day..........
Magura said:
Vix married ?? My concolences yet another fruitfull diy life gone down the drain
Magura
Zen Mod said:
July 1. was D-day..........
I was told not to worry, there are worse things than that ...
Then there is a joke: " You know, marriage is like a can, on top it is filled with honey, and then the rest is sh*t"
And a married guy replies: "Oh, I must have reversed the can when I opened it, I have not reached to the honey yet!"
Vix
Vix said:
I was told not to worry, there are worse things than that ...
Vix
Yeah I bet she told you that.....well, she is right, you could be dead....
Magura
Magura said:
Yeah I bet she told you that.....well, she is right, you could be dead....
Magura
Vix said:No, I was told that by other married people....
And between the lines "we warned you, boy, but now its too late..."
boyz......... you are waaaay on topic .............
Cascoded Current source
Sorry, what I meant was that you could cascode the main current source of your supershunt-reg. Since you have about 10 Volts across it (46 --> 36) you should have enough headroom to do so. This would substantially increase the bandwidth and the impedance of the CCS.
Sorry, what I meant was that you could cascode the main current source of your supershunt-reg. Since you have about 10 Volts across it (46 --> 36) you should have enough headroom to do so. This would substantially increase the bandwidth and the impedance of the CCS.
Re: Cascoded Current source
you're right , but with ~ 150mA per leg I was in situation to choose between even greater overkill or schematic not too much critical regarding parts .
nice bjt (easiest choice for lower element in cascode) is not easy to find for that current ............ or is it........ ?
really depends of type of CCS you choose
but- like I always see from various Papa's schmtcs ............ some things are nothing less than compromises, some things are more than good when they're "good enough"
MRupp said:
Sorry, what I meant was that you could cascode the main current source of your supershunt-reg. Since you have about 10 Volts across it (46 --> 36) you should have enough headroom to do so. This would substantially increase the bandwidth and the impedance of the CCS.
you're right , but with ~ 150mA per leg I was in situation to choose between even greater overkill or schematic not too much critical regarding parts .
nice bjt (easiest choice for lower element in cascode) is not easy to find for that current ............ or is it........ ?
really depends of type of CCS you choose
but- like I always see from various Papa's schmtcs ............ some things are nothing less than compromises, some things are more than good when they're "good enough"
Magura said:
My concolences yet another fruitfull diy life gone down the drain
Being married myself, I'm here to tell you that if you get the right one the DIY stuff gets better, not worse.
Kids, on the other hand, can take a few hours out of your day.
It's my understanding that one of my JFET customers has daughters who help him with his projects. Perhaps I'll get to that point in a few years. For now, all the energy flows one way: Out of me and into the kids.
Grey
GRollins said:
............. For now, all the energy flows one way: Out of me and into the kids.
Grey
but we know that you know that we know that you know that is in fact more than enough better than that.............
like a ........
hehe- take it as purely graphical illustration , not as a sign of my religious blindness.... I don't have any ........ (blindness or religion ? )
GRollins said:
Being married myself, I'm here to tell you that if you get the right one the DIY stuff gets better, not worse.
Kids, on the other hand, can take a few hours out of your day.
It's my understanding that one of my JFET customers has daughters who help him with his projects. Perhaps I'll get to that point in a few years. For now, all the energy flows one way: Out of me and into the kids.
Grey
edit: Yes, it's so true. I found that I'm most affected in that I now have great difficulty in learning something new outside of paying work. For example, I would love to teach myself to design a nice pcb layout. Prior to kids I'm sure it would have been fairly simple. But now, time is so fragmented and focus is so blurred, it's near impossible.
mpmarino said:
........... I would love to teach myself to design a nice pcb layout. ...............
just sell schmtc from your avatar and you'll have enough money to buy all pcbs you need.............or to buy time needed for learning
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