I know this is a long URL, but you don't need the high voltage capability of the 7272-like chips and they might hurt the LVDS type inputs on the KFLOP/KANALOG
All yo need is a 0-5v(or3.3v) complementary swing, so  like the AM26C31xx    family parts: they can be found in DIP also and are readilly available.
I've used them to repair encoders also.

http://www.digikey.com/scripts/dksearch/dksus.dll?FV=fff40027%2Cfff801a4%2C1140003%2C2dc07d3%2C650000a%2C6500027%2C908001f%2C9080020%2C9080021&vendor=0&mnonly=0&newproducts=0&ptm=0&fid=0&quantity=0&PV1291=193&PV1291=36&stock=1

I'm putting some datasheet in the files area also.

-Lee Studley

 

AZ,
I fat fingered the model number, the correct number is a DRC-152 (one-five-two) encoder. I will be adding the pull up resistors. Reloading the software onto a different computer (because some of the issues seem to be software - like suddenly not able to download configuration to the kflop unless I reboot the kflop), and doing what I can to insure clean 5V power to the encoder.

I am also thinking about adding a 7272 line driver, but I will see if the pull up resistor helps first. Last resort I will be spending $$$ for new encoders to insure a good signal.

Gregg

--- In DynoMotion@yahoogroups.com, "az9633@..." <az@...> wrote:

The differential drivers and receivers cost even less here.
http://australia.rs-online.com/web/c/?searchTerm=am26ls3&sort-by=P_breakPrice1&sort-order=asc&view-type=List&sort-option=Price
$10 will get you 10 receivers and 10 drivers to repair faulty encoders if they have electronic failure on the outputs.

--- In DynoMotion@yahoogroups.com, Lee Studley <indigo_red@...> wrote:
>
> I know this is a long URL, but you don't need the high voltage
> capability of the 7272-like chips and they might hurt the LVDS type
> inputs on the KFLOP/KANALOG
> All yo need is a 0-5v(or3.3v) complementary swing, so like the
> AM26C31xx
> <http://www.digikey.com/product-detail/en/AM26C31IDBR/296-25906-1-ND/2254782>
> family parts: they can be found in DIP also and are readilly available.
> I've used them to repair encoders also.
>
> http://www.digikey.com/scripts/dksearch/dksus.dll?FV=fff40027%2Cfff801a4%2C1140003%2C2dc07d3%2C650000a%2C6500027%2C908001f%2C9080020%2C9080021&vendor=0&mnonly=0&newproducts=0&ptm=0&fid=0&quantity=0&PV1291=193&PV1291=36&stock=1
>
> I'm putting some datasheet in the files area also.
>
> -Lee Studley
>
> >
> > AZ,
> > I fat fingered the model number, the correct number is a DRC-152
> > (one-five-two) encoder. I will be adding the pull up resistors.
> > Reloading the software onto a different computer (because some of the
> > issues seem to be software - like suddenly not able to download
> > configuration to the kflop unless I reboot the kflop), and doing what
> > I can to insure clean 5V power to the encoder.
> >
> > I am also thinking about adding a 7272 line driver, but I will see if
> > the pull up resistor helps first. Last resort I will be spending $$$
> > for new encoders to insure a good signal.
> >
> > Gregg
> >
> > --- In DynoMotion@yahoogroups.com
> > <mailto:DynoMotion%40yahoogroups.com>, "az9633@" <az@> wrote:
> >
>