PHILIPS EL3710 preamp info's needed.

[Erik2345]

Listed as low impedance pre-amp

 

[decada]

Hi
Bought 35 years ago a vintage Philips mixer built by a danish engineer for the first multitrack studio based in Portugal from the 50/60. I just start this month to refurbish and restore at its original shape!!!
Looking for some info and help on this unique mixer

 

[C.B. - Boudio]

I fear that there is not much to find anymore. Have you already tried reverse-engineering a module?
The documentation of the MD16, rather standardised, transistorised mixing console from 1968, is fully available on the web, but that's probably not of much use to you.
Over here, for exemple: https://groupdiy.com/threads/1968-philips-md-console-troubleshooting.57482/

https://ekadek.com/2019/06/05/ekadek-ferralgraffa-twin-preamp/
Here you can find the reverse-engineered schematic of a Dutch broadcast preamp, wherein Philips may or may not have been involved.

Could you post more photographs please, maybe in a new thread?

 

[decada]

Hi
Bought 35 years ago a vintage Philips mixer built by a danish engineer for the first multitrack studio based in Portugal from the 50/60. I just start this month to refurbish and restore at its original shape!!!
Looking for some info and help on this unique mixer

Some photos of mixer restoration

Dear Decada, I do have the diagrams of the Philips mic pre s. I can look them up, as soon as I am home next week. . So mail me if I forget...
Btw these bulky in/output trfrs are worth a lot of money these days! Like €150+ a piece...
Grzz Wim Bénard, the Netherlands

Hi Wim Bénard, it would be great if you could help me with the diagrams!
Looking forward to hear from you!
Regards
Rui

 

[Disco Volante]

Maybe send him a PM (it's called "Start Conversation" in GDIY lingo)