[sdiy] Seeking Info On Damon modules

[Tom Rose]

Dear SYTH DIY Folk,
In my scavenging I have found many interesting looking modules for  
teaching electronics. Ocilators, Amps a pulse divider These units  
have a company Name Damon and "Project Physics"
  My web searches have yielded no results. Does anyone know about  
this company and the modules in question? I would love to see what  
sounds might be possible.
I do not know what Voltages drive these units and do not want to fry  
anything while figuring it out.
  Any  info greatly appreciated!
Tom Rose