Emax

--- In emax@yahoogroups.com, Ted Summers <djtbs1@...> wrote:
> no i have not just passive heat sinks on the power regulators

  the transformer is an toroidal and are quieter and more robust the 
  casing is very large in the emax 1 and the are loads of air vents

  i can incorporate cooling but this will ad noise which we dont want
with audio gear 

 i have incorporated spike surge suppressors and noise from mains
voltage also earth hum removal suppressors and inrush  current
limiters for the power switching
   
> Jammie-
> 
> On the PSU, are you incorporating any cooling so that the heat from
PS would
> be exhausted outside the keyboard or rack?
> 
> Just curious.
> 
> Regards,
> Ted
> 
> On Wed, Jan 28, 2009 at 11:11 AM, jammie.emma
> <jammie.emma@...>wrote:
> 
> >   --- In emax@yahoogroups.com <emax%40yahoogroups.com>,
"calippolangnese"
> > <calippolangnese@>
> > wrote:
> > > the display requires some modifications to the pcb to use the new
> > lcd displays
> >
> > but you can fit them with led back lights of various colours
> >
> > the sliders can be replaced with the same ristance and size
equivelents
> >
> > the push buttons have to be de-soldered so you can move the prongs of
> > the grey button from the the bottom of the holder once removed
> >
> > you can clean the contacts with rubbing alcohol
> >
> > there is no replacement push buttons other than scavenging from
> > damaged keyboards and racks
> >
> > the power supply i am doing a new better switching psu design
> > and the prototype works great
> >
> > i am just getting costing for a batch of pcb,s keep you posted
> >
> > > Hi my name is johannes, I bought my emax 1994 secondhand and used
> > eversince a lot.
> > > I am very happy that i found this board! I hope to be able to
> > benefit from your wisdom.
> > > Last month my psu failed, I learned from the board how to replace
> > the old one with an atx
> > > standard device, that encouraged me a lot! Now i realy want the
> > bring my emax I (keyboad)
> > > back to full funktionality! I want to eplace the faded display and i
> > also want to do something
> > > with the buttons... since enter and up and down buttons are
pretty num.
> > > My data slider also is f...t up to...
> > > I read the post how to fix the buttons... ok
> > > but what about the sliders? has anyone tried to fix these?
> > >
> > > I wonderd if its possible to replace the data slider with a digital
> > rotary dial?
> > >
> > > all the best from berlin...
> > >
> > > ps
> > > I will tkae pictures from my restauration project and post them
here.
> > >
> >
> > 
> >
> 
> 
> [Non-text portions of this message have been removed]
>