I was not planning on it at this time unless I am asked to provide the PA system for a rock concert 🙂 Still have my LME49830 based Latfet amp to finish, better get too it now ASAP, as they discontinued LME49830.
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Same here. That's why I opted for the Sanken MT200. Half the cost of Semelab and available overnight in North America.
With approx 96db sensitive speakers and aiming for +- 60 v rails. Any suggestions about transistor matching? How many pairs would be good ? 🙂 thanks in advance. Looking forward to the build. One question though which i cannot find answer for. What is the input impedance with kypton nd IPS?
Best regards
Best regards
Sounds good.
V1.1 shows 22K, but I am sure you can increase it, too 50K, it will be more noise. Could lower it as well. The servo allows for this.
Here are the pdf files for the individual layers and the gerber files for the layout.
Hello guys
since this is a section of SlewMaster builds 🙂 I'm gonna post my ideas here 😀 , I order a few terminal that can be plug on the SlewMonster and IPS Wolverine so I think is a good idea because it will make a strong connection and also can be a lot easier to just plug in instead of keep a screw driver on one hand for continue testing other ISP, here are some images and part number are:
8 pin male vertical terminal block 5 mm part number 5EHDRC-08P
8 pin female plug vertical terminal block 5 mm part number 5ESDV-08Phttp://www.diyaudio.com//www.pinterest.com/pin/create/extension/
since this is a section of SlewMaster builds 🙂 I'm gonna post my ideas here 😀 , I order a few terminal that can be plug on the SlewMonster and IPS Wolverine so I think is a good idea because it will make a strong connection and also can be a lot easier to just plug in instead of keep a screw driver on one hand for continue testing other ISP, here are some images and part number are:
8 pin male vertical terminal block 5 mm part number 5EHDRC-08P
8 pin female plug vertical terminal block 5 mm part number 5ESDV-08Phttp://www.diyaudio.com//www.pinterest.com/pin/create/extension/
Attachments
They look very nice indeed. I haven't have a look, maybe you know from your search: is there a female-female plug too? Like a coupling to omit the wires between boards.
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The yard entrance gates at my work use those same connectors for mains voltage and signal. They've been out in the rain and snow for 13 years and sill working well with no connection problems. Very good connectors.
Okay I looked at the manufacturers HP. They have a vertical variant 5EHDVC and a female plug 0147-11/12 too. I think I'll try the male-female-direct plug variant with my build.
I have been using the Vertical 2 pin version for my input plugs for a while now. The only drawback is the through hole pins are rather large. They won't always fit in a board that was planned for a euro style terminal.
Next question. On the Kypton ND the servo will make up for mismatched semiconductors. If you wanted to match would you be looking at hFE or Vbe?
hFE is what you would be wanting to match, and for best results, you would need to match it at the current flow it would normally be operating at.
Pioneer spec 4 transformers
I want to use pioneer spec 4 transformers for five pair irfp mosfet boards.
They look to be about 660VA at 70vDC output each. Their secondary output wires are not very thick and it seems that they are not stiff and would drop to 60V under load. My speakers are 4 ohm load . Would these transformers be ok for a dual mono installation. I also have two 400 va 50 Vdc transformers that I can connect to form a centretap 50-0-50 DC at 800VA. Will I be safe with the 70 vDC trannies , which is safe with good heatsinks and will give the best performance.
I want to use pioneer spec 4 transformers for five pair irfp mosfet boards.
They look to be about 660VA at 70vDC output each. Their secondary output wires are not very thick and it seems that they are not stiff and would drop to 60V under load. My speakers are 4 ohm load . Would these transformers be ok for a dual mono installation. I also have two 400 va 50 Vdc transformers that I can connect to form a centretap 50-0-50 DC at 800VA. Will I be safe with the 70 vDC trannies , which is safe with good heatsinks and will give the best performance.
Your output transistors need to be rated for twice rail voltage plus some room for error ( extra 20V).
The 50V 400 transformer would make a good monoblock. For 4 ohms.
The 50V 400 transformer would make a good monoblock. For 4 ohms.