OC44 pinout

[jacks178]

I've been searching far and wide for the pinout for the OC44s that Pedal Parts Plus sells:



These are in an open triangle formation and do not have a red dot. Does anyone happen to have that info?

[zombiwoof]

Do you have a meter with a transistor checker in it?.  If so, just put it in the different positions until you get a reading that is in the right range and note the pin-out.

Also, is one lead shorter than the others?.  That can sometimes be a clue with some components.

Are those modern OC44's or NOS?.  I've seen recent production NKT275's and AC128's (the old style large can like that) at a few places, there was a recent thread about the company Magnetech that is making some of those, also there is DSI that was discussed here a while back (they were offering some OC's).

Al

[jagermonster]

I've been searching far and wide for the pinout for the OC44s that Pedal Parts Plus sells:



These are in an open triangle formation and do not have a red dot. Does anyone happen to have that info?

Thought I'd resurrect this threat, since I'm having the exact same issue...also, I don't have a working multimeter right now. Did anyone get to the bottom of this one?

[DiscoVlad]

http://geofex.com/FX_images/to1dwg.gif

with all the PNP germaniums i've seen, if it has a dot to mark polarity, it's the collector.

[petemoore]

  Probably the 'arrow' points to output.
  >
  .
    .
  .
  The pin configuration.
  Rely on DMM though.
  Alternately you can look for a B/E germanium diode, measureing the same as a Ge diode between two of the pins.
  Alternately [not those exact part #] I've stuck 'em in PNP Neg FF >and then they worked.

[jagermonster]

That was fast. Thanks a lot guys, built a point to point rangemaster with a CV7112, now giving it a shot with the OC44. Couldn't move forward without some help.

Anyone know what the story is with these ones from Pedal Parts Plus? Never seen a marking like this one (looks just like the OP's).

[zombiwoof]

Could be new manufacture, a company called Magnetec is making the old-style large can AC128's, NKT275's, and other vintage looking trannies, these could be similar.

Al