Hi All. I'm going to ship these in a USPS Priority mail flat rate box. This is all I have time for - therefore it's to the US only.
You can stumble upon these on Ebay (I see ONE now for $250!) or you can get them from Mouser (at least $500 each - hard to tell). Made in Andover MA.
These are 28V DC SMPS that have isolated outputs. You can run them in series for +/- 28v. They are trimmable to reduce output voltage if desired. Look to the Vicor website. You do lose efficiency when you trim them. I run a similar pair in an external chassis to my Pass M2 clone. The results please ME These Flatpacs seem to not mind capacitance on the output terminals, although you probably don't need much.
Pictured they are in series, with ~14ohm between the ~0v and +56v. They are doing ~4A with them in series. Another meter sits at ~28V at the output on one of them.
They are highly regulated and in my reading I gather that the switching frequency increases with load <this is from memory.
Of course these are not made for audio, but for industrial applications so really it's a chance, but if you've been looking to try them here you go.
Not sure what I paid for them, but let's go with $75 (from $120) shipped for them both. Paypal friends and family would be great.
You can stumble upon these on Ebay (I see ONE now for $250!) or you can get them from Mouser (at least $500 each - hard to tell). Made in Andover MA.
These are 28V DC SMPS that have isolated outputs. You can run them in series for +/- 28v. They are trimmable to reduce output voltage if desired. Look to the Vicor website. You do lose efficiency when you trim them. I run a similar pair in an external chassis to my Pass M2 clone. The results please ME These Flatpacs seem to not mind capacitance on the output terminals, although you probably don't need much.
Pictured they are in series, with ~14ohm between the ~0v and +56v. They are doing ~4A with them in series. Another meter sits at ~28V at the output on one of them.
They are highly regulated and in my reading I gather that the switching frequency increases with load <this is from memory.
Of course these are not made for audio, but for industrial applications so really it's a chance, but if you've been looking to try them here you go.
Not sure what I paid for them, but let's go with $75 (from $120) shipped for them both. Paypal friends and family would be great.
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"You can run them in series for +/- 28v."
The datasheet is attached, but where does it say you can connect them together? I'm not doubting that you've done it, but wondering what specification or terminology to look for to allow making a bi-polar supply.
The datasheet is attached, but where does it say you can connect them together? I'm not doubting that you've done it, but wondering what specification or terminology to look for to allow making a bi-polar supply.