mono cutterhead modify

[studiorp]

Hello people, today I was thinking a interesting thing : is there someone that has tried to modify a normal mono cutterhead for transform in a stereo version insert a second coil above the first ?
In this way the channels are two but without the classic 45/45 structure...

[Angus McCarthy]

That was actually how the first stereo heads were built, though they intended to record one lateral channel and one vertical channel. When I first discovered the concepts of cutting I toyed with this idea as well; feed summed mono to the lateral head and difference information to the vertical head, Mid/Side style. You would have to mechanically link the two heads to a central stylus - something akin to the Westrex model, but tilted 45 degrees of course. Problems arise when you consider that all the weight would rest on the vertical-modulating head, instead of on both driving coils equally.

[studiorp]

I am thinking to rebuild a unique very little container divided in two parts by a plastic material for example.
In one space could be a coil from 8 ohm, the same in the other; but the important thing is that this container must have the same height of original, so all magnetism should remain below two horseshoe magnets without air gaps, but this is a theory to confirm with experiments...

For understand better the structure of my head, here there is a photo from Flo website : http://www.floka.com/pics/m2clement04.jpg

The coil is red colour

[audadvnc]

Transforming a mono cutterhead into a stereo one? Not likely, the mechanisms are completely different. I suppose you can convert a canoe into an airplane too, but it might be easier to start from scratch.

[aussie cutter]

I'd have to agree with audadvnc

It might be easier to start from scratch...

If you have a good dig around here on trolls - you will find plenty of photos of members home made stereo heads

I've been looking into building a stereo head and from what i've seen - it would not be too complicated or expensive

To build a budget stereo head based on similar designs here on trolls can cost you as little as $50 to build, but lets face it What sort of build & sound quality could you really expect to get from $50

If you were to consider building a stereo head based on what others have done - I would reccomend taking your time & putting a little extra into your materials ie: High quality speaker coils, machined aluminium frame/housing, cones etc

Not only will you have a custom stereo head that looks good, It should be of a decent sound quality too...

[studiorp]

Yes, thanks people for these important answers, in effect will be better start from a new project.