[WriteLog] Re: lpt

[Katsuyuki ISHII]

Hi, Steve and all:

Steve Baron - KB3MM wrote:
>MAybe some other thing going on e.g. the RFI, etc.

I attached some ferrite cores to cables (to monitor, keyborad and mouse) 
for RFI and I made a Keying interface with a photo coupler.  With this 
interface I tried lpt keying when I run writelog, but not succeeded.  

Then I found that the output level from my Keying interface is not enough 
to drive keying circuits of my rigs.  So I replaced a photo coupler with 
a transistor and tried again.  Then the level is higher, but not enough 
either.  

----
Katsuyuki Ishii  kkii@hcc1.bai.ne.jp