View Single Post
  #6   Report Post  
Old February 2nd 06, 04:33 AM posted to rec.radio.amateur.homebrew
gb
 
Posts: n/a
Default Another power supply project

"Kerry Miller" wrote in message
news:84YDf.148864$WH.136453@dukeread01...
Since I'm going to have to order a chip for that Astron PS I was working
on, I dug out another old PS that died a few years back. If I have to pay
shipping, I might as well order enough parts to at least make up for the
shipping costs...

Does any of you guys know where to find a schematic for a Yaesu FP-757HD
power supply? It has a 3-terminal regulator in it, it looks like a 317,
but it has funky markings on it which say B824, then down and to the right
it says Q5D. It might be an O or 0 (zero) 5D. Do you guys know if you
can replace this B824 thing with an LM317? The transistors are oddballs
too but I haven't gotten the number for them. If I have to, I can just
start from scratch on it, there's not much to it and there were a couple
of caps with the legs corroded off. I can probably just come up with my
own regulator as easy as I can fix this one unless I can find a schematic.

Do you guys know where to find a schematic for this thing?

Tnx,
Kerry, WD5ABC


Kerry -

I have schematic, will e-mail PDF to you.

w9gb