BBE BMax-T Preamplifier Schematic

[Dood]

Good morning 'Chatters!

 

I have been kindly gifted a dead BBE BMAX-T for the benefit of schematic study and to reignite my love for electronics that has been somewhat dormant for years. However, I was sure that I did have copies of the various revisions of BMAX-T schematic diagrams to aid me. It appears that I don't anymore and BBE's email addresses just bounce and there doesn't apear to be any way of contacting a service centre.. better still, WHO to contact! 

 

So, asking my fellow electronics nerds: Does anyone have any schematic diagrams for the BBE Max-T? I'd even take diagrams of the solid state version as well, because that's all interesting stuff to me. 

 

Thank you in advance!

 

[Chienmortbb]

I don’t but I will ask on the DIY Audio forum. 

[Bigwan]

Wish people would gift me things like that!

 

"Dead" would suggest PSU issue? Or lights on but nobody home?

[Dood]

2 hours ago, Bigwan said:

Wish people would gift me things like that!

 

"Dead" would suggest PSU issue? Or lights on but nobody home?

 

I've not had time to open it up yet as I have been catching up with a whole pile of magazine video reviews I am editing up. Some pretty nice pieces of kit to show off! When I do get time I'll start isolating sections and testing - I've not checked for any signs of life yet. 

[Dood]

4 hours ago, Chienmortbb said:

I don’t but I will ask on the DIY Audio forum. 

 

Thank you! 

[Bigwan]

4 minutes ago, Dood said:

 

I've not had time to open it up yet as I have been catching up with a whole pile of magazine video reviews I am editing up. Some pretty nice pieces of kit to show off! When I do get time I'll start isolating sections and testing - I've not checked for any signs of life yet. 

It's a weird one when you look at internal pics. A HUGE PCB with each circuit section clustered together. Only single sided though which makes it slightly more tricky to isolate sections from each other...

[Dood]

6 minutes ago, Bigwan said:

It's a weird one when you look at internal pics. A HUGE PCB with each circuit section clustered together. Only single sided though which makes it slightly more tricky to isolate sections from each other...

 

Yeah, there's a few things I know about the topology already - the valve preamp' isnt anything unusual and the BBE circuit is well documented on the interwebs too. But yeah, I agree, if it turn out not to be obvious PSU issue related, I'll have the board out. It's just time I need that would be saved with a schematic.