I have now more or less finished the control panel, I just have the mains socket, switch and fuse to wire up. Then I can put the back on and see what it sounds like.
My tests so far seem to indicate it goes a bit boomy with the back a loose fit.
If that's the case I will probably have to cut some large vents in the back panel. The original back would have been well vented with a cloth covering to stop the ingress of dust.
You can see what an original back would have looked like here.
http://www.kbmuseum.org.uk/kb_images/kb72/kb72.htm
I am not too sure about Baxendall tone controls needing to be logarithmic, I bought some new pots from Rapid, 2 x 22k log for the tone controls and 1 x 100k log for a volume control to help match the active speaker to the source of the audio.
Mike
My tests so far seem to indicate it goes a bit boomy with the back a loose fit.
If that's the case I will probably have to cut some large vents in the back panel. The original back would have been well vented with a cloth covering to stop the ingress of dust.
You can see what an original back would have looked like here.
http://www.kbmuseum.org.uk/kb_images/kb72/kb72.htm
I am not too sure about Baxendall tone controls needing to be logarithmic, I bought some new pots from Rapid, 2 x 22k log for the tone controls and 1 x 100k log for a volume control to help match the active speaker to the source of the audio.
Mike
