information/help for ETI (Maplin) 4600/5600

[prof. Antonio Guerrieri]

Hi,

since I am actually involved in costructing  an old ETI (Maplin) 4600
analogue synthesizer (and some modules of the  ETI (Maplin) 5600 version),
I would like to hear from someone already involved in such a construction
some information/help about this system.
In particular, I am interested to know:
1- overall impression about it;
2 - useful suggestions about, for example, the components and /or some
entire modules need upgrading or replacing;
3 - how to find some "exotic" components such as chockes of 1 and 0.33
henry and, more important, the matrix (4600 version) that permits
inter-connections between modules.
Finally, if someone think to dismantle his own  ETI (Maplin) 4600/5600,
please contact me by e-mail.
Thank you very much. Best regards,

Antonio Guerrieri
ga026sci at pzuniv.unibas.it