Anyone know offhand if a tl082 can safely replace a tl072? They do appear compatible. Thanks, <<aaRoN>> --- In korgpolyex@yahoogroups.com, Gordon JC Pearce MM3YEQ <gordon@...> wrote: > > On Wed, 2009-03-04 at 13:34 +0000, narfman96 wrote: > > Definitely timing issues with IC36b the interrupt oscillator. Try > > disconnecting the output at R107 and see if it runs at the correct > > frequency. If it does the CPU is loading it down somehow. If not then > > suspect the timing caps C76 or C79. The resistors R102-R104 need to be > > verified and then the Tl072 op amp itself. This circuit needs to run > > in the mhz or no go for the LED display and envelope generators. > > Bah. Just change the TL072 on spec. Horrible things. > > Gordon >
Message
Re: Dead 800
2009-03-04 by selloutdesigns