PulsePsycle Posted April 21, 2014 Report Share Posted April 21, 2014 Hi all, A true story and maybe helpful for someone else. I'm from Holland and new here and only because the Philip Rees Midi Merger is obsolete. I'm Glad that this site has a DIY project for this. So, I started to build the MBHP-Burner on a vectorboard. I use a 15V DC adapter but whatever I tried I could'n get the required 13.1V between J2 and MCLM# for burning a PIC16F88. After a week of reading the forum, replacing IC1, IC2 and T1 I found that IC2 was the trouble here. When not connected I could measure 14.5V, connected only 12.3V. Finally I decided to put it on another place in the scheme. Now 78L05 is connected between LM317-O and C3. I have 13.1V and burning goed like a charm! Now I'm ready for the next step. Building the Merger and see if the burning was really succesful. And who knows maybe more. Quote Link to comment Share on other sites More sharing options...
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