[Elecraft] [K2] T/R switching

[Don Wilhelm]

Nickolay,

Yes, anti-static measures are important when handling the 2N7000 (and 
many more devices.
If you do not have a goo anti-static mat and a wrist strap, then 
shorting all pins together until after the device is soldered in place 
is a good preventative measure.

73,
Don W3FPR

On 3/15/2012 6:55 PM, picmaster at mail.bg wrote:
> Hi Don,
>
> Thanks for your answer. The output of the 8V voltage regulator is just
> perfect (for a 10% device) - 7.98V. I was wondering why I get 500mV
> voltage drop across Q1&  Q2, but if you say that's OK, then I'm fine.
>
> Slightly offtopic - I had also another failure of 2N7000 - again in Control Board,
> but this time Q5 (sidetone generation). I again made the temporary fix with
> BJT+33k resistor, until I order a batch of 2N7000s. Next time I mount those
> picky MOSFETs, I'll try to put a tiny bare wire across all the pins for temp
> protection...
>