The expression is often abbreviated to simply oy, or elongated to oy vey ist mir (Oh, woe is me). The fuller lament may also be spelled as Oy vey iz mir. The main purpose or effect of elongating it is often dramatic, something like a cosmic ouch.he Latin equivalent is heu, vae! (pronounced, hoi, vai, amongst others); a more standard expression would be o, me miserum, or heu, me miserum. According to Chabad.org, an alternative theory for the origin of the Yiddish expression is that oy stems from Biblical Hebrew, and that vey is its Aramaic equivalent.
The final odd circuit within the op amp is shown in green. Here, the two resistors bias the transistor in what would seem to be an unusual way, since there is no apparent signal input to the base of the transistor. To understand its purpose, assume zero base current for a moment, and a V BE of 0.625 volt.he final odd circuit within the op amp is shown in green. Here, the two resistors bias the transistor in what would seem to be an unusual way, since there is no apparent signal input to the base of the transistor. To understand its purpose, assume zero base current for a moment, and a V BE of 0.625 volt.
We will later use the output of the comparator circuit as an input to the MicroStamp11. There is, however, a big problem with this approach. The problem is that the voltage levels generated by the comparator circuit are too large. Recall that for the op-amp to work well, the supply voltage must be around 9 volts.