I am currently making the connection panel for the input and controls out of aluminium, unfortunately it is 3mm aluminium but that is all I had in the way of anodised aluminium.
This is where I have go to at the moment.
Mark can probably explain more about the treble speaker, where it came from and what it is like. But coupled with the 10 inch Goodmans and a 1.8uf cap* it sounds quite good to me and that is with out the new back I have made fitted. The new back panel is also made out of solid oak, but it is a thin panel with t&g joints, it is from an old wardrobe. I have added 2 bracing ribs to the panel to prevent the t&G joints from splitting in future and also to brace it so it acts less like a drum.
I am waiting for some figure 8 chassis mains plugs to arrive so I can drill and cut the correct hole size for one in the aluminium.
So today I will try and put together the tone control and see how it works. If there is too much loss in the TC then I have the option of tweaking the gain of the amp a little by altering the feedback, or adding another preamp stage.
I have all the resistors, the caps were a little more tricky, I have a 1500pf mica but I may make one up with a ceramic 1n and 470p.
I have to say that all this is not being done to any scientific method so the result will be a compromise between a dead pile of scrap oak and a useful active speaker for an ipod or small radio.
It is also being made with scrap and spares that I mostly have to hand. The only things purchased so far specially for this is the mains socket.
* This was an ex ring capacitor from a BT socket, I had a few of these after we chucked a load of BT sockets and I cropped out the caps.
I dont know if Mark could comment on the value and its suitability, have I guessed on the value about right.
Mike
This is where I have go to at the moment.
Mark can probably explain more about the treble speaker, where it came from and what it is like. But coupled with the 10 inch Goodmans and a 1.8uf cap* it sounds quite good to me and that is with out the new back I have made fitted. The new back panel is also made out of solid oak, but it is a thin panel with t&g joints, it is from an old wardrobe. I have added 2 bracing ribs to the panel to prevent the t&G joints from splitting in future and also to brace it so it acts less like a drum.
I am waiting for some figure 8 chassis mains plugs to arrive so I can drill and cut the correct hole size for one in the aluminium.
So today I will try and put together the tone control and see how it works. If there is too much loss in the TC then I have the option of tweaking the gain of the amp a little by altering the feedback, or adding another preamp stage.
I have all the resistors, the caps were a little more tricky, I have a 1500pf mica but I may make one up with a ceramic 1n and 470p.
I have to say that all this is not being done to any scientific method so the result will be a compromise between a dead pile of scrap oak and a useful active speaker for an ipod or small radio.
It is also being made with scrap and spares that I mostly have to hand. The only things purchased so far specially for this is the mains socket.
* This was an ex ring capacitor from a BT socket, I had a few of these after we chucked a load of BT sockets and I cropped out the caps.
I dont know if Mark could comment on the value and its suitability, have I guessed on the value about right.
Mike
