If someone is interested in the plugs,
I would buy the plugs here in Germany,
and ship them at the cost plus shipping costs.
I would buy the plugs here in Germany,
and ship them at the cost plus shipping costs.
Might make sense if the order were large enough. Only place I could find them domestically is here
132C12019X | Conec Distributor | 132C12019X Inventory
132C12019X | Conec Distributor | 132C12019X Inventory
@borlotti are the nylon standoffs on your built for a purpose? I’m thinking you will mount a metallic shield to prevent hum?
At €1 per connector part, I’m figuring that
8 female and 40 male, it will cost €48 euro, if I understand correctly.
At €1 per connector part, I’m figuring that
8 female and 40 male, it will cost €48 euro, if I understand correctly.
Well, I went back in and swapped out those Carbon Comp resistors... Wasn't bad, I have had plenty of practice de-soldering. lmao
connectors
I requested the connectors directly from the manufacturer this morning. Number of pieces for 10 x complete assembly of the boards, which are each a set with 8 sockets and 40 plugs. as soon as I get the prizes I'll get back to you.
I requested the connectors directly from the manufacturer this morning. Number of pieces for 10 x complete assembly of the boards, which are each a set with 8 sockets and 40 plugs. as soon as I get the prizes I'll get back to you.
Okay, dropped in the Antek with 20V secondaries and I'm now in the ball park... As some rad above, I had some 22V secs from another project and was going to use them, but I was getting almost 28V rails even with the SLB supply.
I have 24.4 as a low and I can take it up to about 26.5 on the rails. 🙂 BTW the one mono is done, it look marvelous. I didn't hear anything funky from the PWM for the fans either, but I also have the M2 mounted to the rear cover and all the noise making stuff is a foot away. The trans is in the open and I heard nothing with my ear and inch from the speaker.
Now it's on to the second mono and finish off the daughters.
After that, might attack the Honey Badger, just so I have some muscle. 🙂
I have 24.4 as a low and I can take it up to about 26.5 on the rails. 🙂 BTW the one mono is done, it look marvelous. I didn't hear anything funky from the PWM for the fans either, but I also have the M2 mounted to the rear cover and all the noise making stuff is a foot away. The trans is in the open and I heard nothing with my ear and inch from the speaker.
Now it's on to the second mono and finish off the daughters.
After that, might attack the Honey Badger, just so I have some muscle. 🙂
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connectors for the daughterboards
I got the prices for the connectors from the manufacturer today.
the socket costs 1,20€ per piece
the plug 1,00€ per piece
If someone is interested, I can send the connectors.
Shipping costs will of course be added 🙂
I got the prices for the connectors from the manufacturer today.
the socket costs 1,20€ per piece
the plug 1,00€ per piece
If someone is interested, I can send the connectors.
Shipping costs will of course be added 🙂
Current status: M2x boards stuffed and in their final resting place (unless the thing sounds really bad).
I made a sloppy frankenstein Ishikawa with stuff I had around (not MJ approved)😉. I am going to test this out first. I am waiting for Tucson parts OPA604, I think I will go with that in the end.
I had some nylon standoff for the mainboard and some brass ones I machined back in the day for the add-on card. Bought the Al ones but did not have M3 screws.
This is an enclosure I made circa 2006 overbuilt to hell. I think it should be able to handle 160W dissipation.
I am still debating around the PS ideas, now that the universal PS is back in stock I have some other options to play with.
I may trade off the increase voltage from the butta' board (SLB) rectification, and burn that off with a higher R of the CRC and forgo the capacitance multiplier at least during initial testing.
I made a sloppy frankenstein Ishikawa with stuff I had around (not MJ approved)😉. I am going to test this out first. I am waiting for Tucson parts OPA604, I think I will go with that in the end.
I had some nylon standoff for the mainboard and some brass ones I machined back in the day for the add-on card. Bought the Al ones but did not have M3 screws.
This is an enclosure I made circa 2006 overbuilt to hell. I think it should be able to handle 160W dissipation.
I am still debating around the PS ideas, now that the universal PS is back in stock I have some other options to play with.
I may trade off the increase voltage from the butta' board (SLB) rectification, and burn that off with a higher R of the CRC and forgo the capacitance multiplier at least during initial testing.
Attachments
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Given the proximity of the Edcor transformers to the middle of the case, you will definitely need to use a well shielded power transformer. The Antek AS-4218 has a steel outer case available for it. Place it as far forward as possible. The store PSU boards are a good start for a decent supply. Your choice of rectification will yield about 22V to 23V on the rails.
@Tungsten,
the case maybe wider than it appears. Here is a shot with the trafo and the butta' board.
I went for the mosfet position being centered onto the heatsink for optimal cooling. I can build something arounf the trafo if it needs it.
I am used to transformers outputting more Vs than needed and being undersized in Cu meaning they wind a whole bunch of extra coils so that the voltage settles to the rated V under full load. Historically, I always upsized my transformer chasing that deeper bass...
I decided to not do that this time.
I am using an antec 200VA 18+18 which looks plenty big enough to support the system. We'll see how that goes.
the case maybe wider than it appears. Here is a shot with the trafo and the butta' board.
I went for the mosfet position being centered onto the heatsink for optimal cooling. I can build something arounf the trafo if it needs it.
I am used to transformers outputting more Vs than needed and being undersized in Cu meaning they wind a whole bunch of extra coils so that the voltage settles to the rated V under full load. Historically, I always upsized my transformer chasing that deeper bass...
I decided to not do that this time.
I am using an antec 200VA 18+18 which looks plenty big enough to support the system. We'll see how that goes.
Attachments
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Unfortunately a single Antek AS-2218 will not be sufficient for that build. A pair would work if you were willing to go with a dual mono configuration, without the SLB CapMx boards. Due to the voltage dropout of the capacitance multiplier, you would need transformers with 20V secondary windings to get the preferred voltage on the rails.
We'll see. I don't plan to use the cap multiplier for now. Worse2worst I will get a new trafo but I will make this work.
Thanks for the offer!
3218 is only 300VA and power is not the limiting factor here. IMO anything above 200VA is a complete waste for this amp. If I go with regulator I may need to notch it up to 20 or 22V.
3218 is only 300VA and power is not the limiting factor here. IMO anything above 200VA is a complete waste for this amp. If I go with regulator I may need to notch it up to 20 or 22V.