esoteric audio reserch - EAR 660

[ilfungo]

Yes
I've built 2 units.
The only differenze Is a little roll off from 40hz on mine.
The real unit Is flat from 0 hz.
Insider custom fransformers
I've used Sowter 660 transformer and custom Sowter interstage....

 

[Eddstudio]

Yes
I've built 2 units.
The only differenze Is a little roll off from 40hz on mine.
The real unit Is flat from 0 hz.
Insider custom fransformers
I've used Sowter 660 transformer and custom Sowter interstage....

Nice thanks for your reply.
How much did it cost you for one clone?
Would you please share the schematics and explain me briefly how to build it?
Thanks so much for sharing this.
Regards
Ed

 

[ilfungo]

The cost was near 1600 euros for unit.
I don't have a schematic.
Time ago my friend take me the real unit for 6 months.
I've reverse engeniering and measured all parts.
I've rebuilt the same bord on sprint layout software and send them for printing...

 

[Eddstudio]

Could you please help me to build mine ?
Thanks for your help
Regards
Ed

 

[Eddstudio]

Hello,

Can someone help me to build a faithful clone of the EAR 660 ?
Or Can someone build it for me ? I will pay for it
Thanks for your help
Ed

 

[Eddstudio]

Hello,

Could you help me to build a faithful clone of the EAR 660 ?
Or Could you build it for me, I will pay for your work !
Thanks for your kind reply
Regards
Ed

 

[KrIVIUM2323]

Or Could you build it for me, I will pay for your work !

If you want a faithfull one and are ready to pay for parts+ labour for a 'clone' then buy a real one second hand it'll be cheaper ( the output transformer is going to be pricey to reproduce).

If you want something inspired then it's a bit different, but it won't be 'the real thing', it can sound as good or better or not...

Basically it's a varimu but with casoded tube varimu cell using same biasing scheme as a real Fairchild 660 but with a solidstate sidechain.