I had a pleasant surprise the other day. I found in my storage room nearly all the parts to build a pair of Borbely DC-100 or DC-100A amps. I think I collected these parts more than 20 years ago, then, during a household move, forgot about them.
Anyway, I do not have the Old Colony PCBs that used to be available. Before I go etch some, I wonder if anyone here might have a pair of PCBs that never got used.
Dave
Anyway, I do not have the Old Colony PCBs that used to be available. Before I go etch some, I wonder if anyone here might have a pair of PCBs that never got used.
Dave
Borbely's DC100? Oh my...that was Erno's good old design from, as you said, more than 20 years ago. I am using a pair of all-FET Mill75 amps built 3-4 years ago. Besides heating up my room very quickly, they are great amps.
Nice to hear there's an old fan of Borbely Audio in Thailand. Good luck with your DC100 PCB.
Nice to hear there's an old fan of Borbely Audio in Thailand. Good luck with your DC100 PCB.
Ahh! Thank you! It is a more recent Borbely design. Probably even better than the DC100. It might even be a good furnace for a home in Iceland. Really, though, I am intrigued. I will research this more.
Dave,
Look what I found in the garage. A couple of DC100 boards with AH5020 and NPD5565 input devices but otherwise close to unpopulated. If you don't need the input fets then I might remove them for use in another project. Let me know what you want to pay and I'm sure we can work out a deal.
Thanks,
---Gary
Attachments
I was able to find more information about the Millennium 75 (and the Millennium 200) using the wayback machine to look at Erno's website a few years back. It looks as if Erno never published any information that a earnest DIYer could use to build the amp other than through a kit purchase. Is that right?
If that is wrong, I'd love to see the schematic fleshed out with real parts values and see if I might be able to reproduce it for myself. Is more complete information available anywhere?
Dave
If that is wrong, I'd love to see the schematic fleshed out with real parts values and see if I might be able to reproduce it for myself. Is more complete information available anywhere?
Dave
Erno never published the schematics and part lists of his "all fet" designs excepts a few from "starter kits. But he published a few articles on earlier power amps such as DC-102, Servo-50. They were on his website. Zen Mod made a site mirror for Borbely Audio. Not sure it's still there. Here's the link.
http://www.diyaudio.com/forums/pass-labs/185003-borbely-site-mirror.html
http://www.diyaudio.com/forums/pass-labs/185003-borbely-site-mirror.html
Dave,
It's great to hear that those boards have come to life in your hands. Congrats on finishing the amp.
---Gary
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