Good morning
Yes, unfortunately it is this one... But it should have been the H1 instead.
http://www.mouser.com/ds/2/307/en-g5v_2-536510.pdf
The G5V-2 H1 12VDC has nearly the same spec. as the NEC does (960ohm / 0.150mW)
Anyway i tried to meassure the drop on led's which is 1,9vdc... Transistor, resistors, relay and led's dosent feel warm through, after 5 minutes of power.
-But i think i will buy some of the H1 types anyway along with the rest of the parts i am missing!
Not a good start i guess
Jesper.
Seems like that the Leds and Qa will hold if not hot until replacing for the H1. Is there any with compatible form factor but better with gold plated contacts that does not have that datasheet note about staying on for long is a bad thing for its contacts? Maybe its general note for very hot relay operation but gold over silver is better than silver alone anyway. That the simple control circuit succeeds to click after a time delay even with a much different power coil part than the original is a more than good enough start.
Thanks Salas for you're incredible support, i really appreciate it.
Phew
hard day at work!I ordred the rest of the parts, that i need today, and along with that some of those omron H1 (960ohm/150mW) relay's with the same footprint and AG / AU (Gold/Silver) contactors... I used them before some times and never had problems with them.. But i also ordred the BOM NEC relay too, mayee i will make an adaptor for it, so it fits into my pcb? Maybee?
http://www.mouser.com/ds/2/307/en-g5v_2-536510.pdf
http://www.mouser.com/ds/2/212/KEM_R7001_EA2_EB2-541006.pdf
Rgds; Jesper.
Thanks Salas....
So finally i am done with pcb.
Sry... Salas, there was a typo on the pcb (jlp16)
Took around 7-8 hrs. including time for cutting and drilling all holes.
-Hey but i like it!
Next step is to "beep" it all out, after soldering the top/bottom layer spot's
Rgds; Jesper.
Very nice, that's how I made my PCB's about 30 years ago
is that an original 'Dalo Pen' ?
Hi Salas
Please excuse my off topic but I am designing a new power amp that needs a regulated psu for the IPS and VAS.... after simulating with your V12R I decided to keep it simple and went for your new series reg.
At the input of the reg I have 80Vdc and it should provide stable 69Vdc for the amp.
I added protection zeners for inrush but do not know if it can work with the stock transistors you use here.
The works are here: http://www.diyaudio.com/forums/soli...r-amplifier-assemblage-vii-3.html#post4871522 so if you care to comment here or there
Please excuse my off topic but I am designing a new power amp that needs a regulated psu for the IPS and VAS.... after simulating with your V12R I decided to keep it simple and went for your new series reg.
At the input of the reg I have 80Vdc and it should provide stable 69Vdc for the amp.
I added protection zeners for inrush but do not know if it can work with the stock transistors you use here.
The works are here: http://www.diyaudio.com/forums/soli...r-amplifier-assemblage-vii-3.html#post4871522 so if you care to comment here or there
Attachments
The stock pass transistors are high gain bandwidth product parts good for 1.5A current before they will have some HFE drop. Find their spice models from ON and simulate. This is not a regulator its a voltage referenced Sziklai pair multiplier. Good for where there is some PSRR and relatively high bias. Has smooth & extended low Zo for a multi, its not reactive or noisy. With the Norton Vref you use (R3, R15) it won't be as fixed as with Leds but you would be needing far too many for 70V and the resistors are better than Zeners (in noise not in voltage fix). J1 J2 Idss and their drift will directly change the resistors voltage so it will take you some preparation of matching and trimming. R2 R14 trimming will help in that also. See not to use JFETs with more Vgs (off) than half Vdif=Vin-Vout. Use Vdif of at least 5V. Your sim's transient reminds what I measured in DCSTB for power on output voltage curve but I can't make other things out of your file. I put you parameters in other sims and I see it follows for Zo curve etc. But you will see how it goes in spice as a total result in the concept of your amp. In general such rail cleaning solutions are cooperating well with power amp driver stages. What school is it based on by the way? Reminds me of Goldmundish topology, but I am not sure, just had a fast look.
I have been running off one power supply for awhile. So one dual secondary transformer and one half a DCSTB board.
what I notice is that I think I lose maybe 10% of soundstage width, and the information is a little harder to separate. So a little less image separation or ease. It's still completely enjoyable, but there lies a difference in my setup. It's subtle, and follows the rule of getting the last 10,5,2,1 % out of your gear/setup really can escalate the costs.
The test was done more to test the heat threshold of running one DCSTB board with 1.5" sinks and probably well over 150ma bias per channel. The sinks on the DCSTB get quite hot. I think 2 or even 2.5" Wakefields may be needed for such a setup. My 48VA Hammond was also warm, but not hot.
what I notice is that I think I lose maybe 10% of soundstage width, and the information is a little harder to separate. So a little less image separation or ease. It's still completely enjoyable, but there lies a difference in my setup. It's subtle, and follows the rule of getting the last 10,5,2,1 % out of your gear/setup really can escalate the costs.
The test was done more to test the heat threshold of running one DCSTB board with 1.5" sinks and probably well over 150ma bias per channel. The sinks on the DCSTB get quite hot. I think 2 or even 2.5" Wakefields may be needed for such a setup. My 48VA Hammond was also warm, but not hot.
Hi and evening all...
I find it a little difficult to source closed/sealed
trafos here.
Any good source here in Europe?
Jesper.
There are a few...
--> https://www.hifituning24.de/transformatoren/ringkern_vergossen_v-rkt-ms-sw/index.php in different flavors.
You can get enclosed toroids at Distrelec or Bürklin (retailer for everything electronic) in Germany.
I am having my toroids custom made at Rondo Müller Induktive Bauteile wie Ringkerntransformatoren, Ringkerndrosseln, Induktive Bauelemente, Bauteile,
very good quality, absolutely silent and very fair pricing.
From what I have heard Toroidy in Poland Power transformers - Internet shop Toroidy.pl is also a very good adress.
--> https://www.hifituning24.de/transformatoren/ringkern_vergossen_v-rkt-ms-sw/index.php in different flavors.
You can get enclosed toroids at Distrelec or Bürklin (retailer for everything electronic) in Germany.
I am having my toroids custom made at Rondo Müller Induktive Bauteile wie Ringkerntransformatoren, Ringkerndrosseln, Induktive Bauelemente, Bauteile,
very good quality, absolutely silent and very fair pricing.
From what I have heard Toroidy in Poland Power transformers - Internet shop Toroidy.pl is also a very good adress.
Evening all
Few day's ago we discussed the use of SK10 flux.
After cleaning/spraying it look's like this.
I have the experiance that it can be used, also when components are soldered in; but allways remember to let it dry at least 24Hrs. Otherwise it will be sticky.
Just my 2 cent's about it this evening...
Jesper.
Few day's ago we discussed the use of SK10 flux.
After cleaning/spraying it look's like this.
I have the experiance that it can be used, also when components are soldered in; but allways remember to let it dry at least 24Hrs. Otherwise it will be sticky.
Just my 2 cent's about it this evening...
Jesper.
Attachments
Tea when are you planning on closing the GB. I notice you have around 70 names already.
nash
I'm planning to run my DCG3 with 150 mA bias because I will be feeding my Audeze LCD 2 (fazor) headphones with it. Are the stock sinks included in the DCSTB full kit sufficient for this? Should I purchase taller ones? I will be using dual trafos and dual boards.
Yeah, and I'm also curious when Tea-bag is closing the group buy...