Thanks! They are as you say - just your average passive components, and a few op amps and other various IC's, sadly, manufacture isn't an option as the projects I’m making are clones of good old patented analogue effects so I can only make em for personal use. I was planning on trying out the circuits and if they appealed I would build my favourite (read most generic and roundly useful) internally into a personal guitar design.
Thanks for the help once again!!
Regards,
Nathan.