not needed, when each secondary is having own separate bridge
Try Mouser's parametric search. You'll find quite a few. If you insist upon buying 3W resistors which are physically as small or smaller than the ones in the BOM, so they are guaranteed to fit the PCB without requiring you to actually measure the PCB. . . . . . include the width and length as part of your parametric screening. 5.5mm wide , 15mm long if I didn't make an error. You'd better double check it.
DominicD, for the .47 3watt, I used these. Mouser has plenty but they’re a little pricier since I ordered them.
https://www.mouser.com/ProductDetail/Vishay-Dale/CPF3R47000JNB14?qs=MJw/449BOx/BmHgUJauRtw==
https://www.mouser.com/ProductDetail/Vishay-Dale/CPF3R47000JNB14?qs=MJw/449BOx/BmHgUJauRtw==
Mouser > Metal oxide film resistors.
https://www.mouser.com/c/passive-co...rp=passive-components/resistors|~Power Rating
https://www.mouser.com/c/passive-co...rp=passive-components/resistors|~Power Rating
Is it important that they are metal oxide? I used some wirebound resistors.
These ones
https://www.mouser.es/ProductDetail/YAGEO/PNP3WVJT-73-0R47?qs=xZ/P%2Ba9zWqYR7jUl7BQ06Q==
Haven´t finished yet so I have not put it on fire yet, should I replace them?
These ones
https://www.mouser.es/ProductDetail/YAGEO/PNP3WVJT-73-0R47?qs=xZ/P%2Ba9zWqYR7jUl7BQ06Q==
Haven´t finished yet so I have not put it on fire yet, should I replace them?
Hello,
I'm not professional and need your collaboration. I started a build PassDIY Pearl 2. Could you help me and give me info on which elements need to change for power supply Pearl 2 in EU - 230 V/50 Hz in Poland? I want to order a solenoid transformer from Toroidy.pl.
Many thanks and Greetings,
Peter
I'm not professional and need your collaboration. I started a build PassDIY Pearl 2. Could you help me and give me info on which elements need to change for power supply Pearl 2 in EU - 230 V/50 Hz in Poland? I want to order a solenoid transformer from Toroidy.pl.
Many thanks and Greetings,
Peter
Attachments
^ This should be a link to a 50VA 2x22 (dual secondary 22VAC output) single primary for 230VAC input.
https://sklep.toroidy.pl/en_US/p/TTSA0050-Transformer-AUDIO-TSA50VA-voltage-to-50V/309
I picked the "middle" quality from Toroidy as the example.
Below is a quick sketch with a single primary. I think you'd go to a lower value fuse (0A25 or so).
Someone should confirm.... I'm a novice at this.
https://sklep.toroidy.pl/en_US/p/TTSA0050-Transformer-AUDIO-TSA50VA-voltage-to-50V/309
I picked the "middle" quality from Toroidy as the example.
Below is a quick sketch with a single primary. I think you'd go to a lower value fuse (0A25 or so).
Someone should confirm.... I'm a novice at this.
Hello,
Many thanks for the answers. Could you tell me which elements of Power Supply Circuit Board v3 in BOM file xls need to change for power supply Pearl 2 and 230 V? Can I buy everything and will be correct to pearl2 or need to change for example diodes, capacitors or resistors for high voltage (+/-30V)?
https://diyaudiostore.com/collections/power-supplies-accessories/products/universal-psu
In the first thread, 6L6 wrote:
"This specific build will be suitable for any of the Pass/Firstwatt amps that use a +/-25V supply. If you need a higher voltage make sure you use capacitors of a suitable voltage rating for your project." - so I doubt because Peral2 need a +/-30V supply.
Thanks for your help.
Many thanks for the answers. Could you tell me which elements of Power Supply Circuit Board v3 in BOM file xls need to change for power supply Pearl 2 and 230 V? Can I buy everything and will be correct to pearl2 or need to change for example diodes, capacitors or resistors for high voltage (+/-30V)?
https://diyaudiostore.com/collections/power-supplies-accessories/products/universal-psu
In the first thread, 6L6 wrote:
"This specific build will be suitable for any of the Pass/Firstwatt amps that use a +/-25V supply. If you need a higher voltage make sure you use capacitors of a suitable voltage rating for your project." - so I doubt because Peral2 need a +/-30V supply.
Thanks for your help.
Could this board be used to smooth out the electricity before it goes into a high voltage regulator? Is 280 volts too much? This would be for the power supply of a tube pre-amp using very little current.
Possible, but not such a good idea. The parts, specifically capacitors all have to be changed to find values that are at least 10% greater than the maximum supply voltage. In your case, at least 350 to 400V. This supply is really made for lower voltages and higher currents.
Why not consider alternatives that are suitable for preamps tube supplies? I think DIYA here has a dedicated thread for tube related posts. Also, search out Peter Millet's website/page, he has some great power supply boards and I think available now on eBay. Also do a search for Tent Labs.
By your question you don't have a lot of experience with power supplies. Please - take all caution. High voltage supplies can be lethal if the current travels a path through your heart. Too many have discovered this the needless way. Read and understand before building and putting the AC on! Best of luck.
Why not consider alternatives that are suitable for preamps tube supplies? I think DIYA here has a dedicated thread for tube related posts. Also, search out Peter Millet's website/page, he has some great power supply boards and I think available now on eBay. Also do a search for Tent Labs.
By your question you don't have a lot of experience with power supplies. Please - take all caution. High voltage supplies can be lethal if the current travels a path through your heart. Too many have discovered this the needless way. Read and understand before building and putting the AC on! Best of luck.
The project is a tube pre-amp running on a handful of milliamps. The transformer secondary is 200v, then rectified, then going into the universal power supply board which will have 3800uf (8x475uf). And then, finally, going into the Linear Audio T reg board to regulate the 200v supply. I think this configuration is okay...No?