Thursday, 17 September 2015

My tone arm trial - Magnetic and uni pivot type

Al of a sudden making tone arm of own make sense to me.
Then, I thought I can use two different cartridges on the same platter. Two different cartridges ased on their cost, quality (poor) of discs. I will b quick. and ofcourse it will be fun o DIY.

Uni pivot was the easiest to try so it was already a choice and I already had a good example of one of my audio friend.
While thinking about it, I realized friction is the problem, then naturally I thought of using magnet to avoid a contact yet get the strength of a connection through magnetic force.

in that time i discovered somebody has already thought about it and made a very good design on it with a patent too. He is Schroeder. Read DIY forum where people tried clone his idea and made their own tone arm.

I wanted both my tone arms to b made from easily available item. and also I tried to make use of similiar items for both designs.

Here are photos of them. I have used

1) wood bit for tone arm
2) cycle tube part like nozzle and holder for the shaft of uni pivot and top wire holder of magnetic pull uni pivot (Schroeder) design.











 

Wednesday, 26 August 2015

Saturday, 7 March 2015

A new design - OB and Ripole sub

I am trying to make a value for money speaker set up with Ripole sub and open baffle (OB) speaker.

It is in the making.
Attached are some photos of first assembly. It is about to get paint now.
Drivers will be mounted post painting.










And here is the finshed version. Gaps are filled in. 
Balanced works are leg supports, and grilled speaker cover for the top.