[Elecraft] Elecraft MD-2 mic resistor

[Masleid, Michael A.]

Hi Don,

>I am stuck - I am working on a K2 for another ham, and he will be using =
the
>Elecraft handheld mic with it.
>I know that mic needs a resistor added, but I cannot locate the value =
nor
>the connection points anywhere in the Elecraft website manuals section.

Well, my guess would be:

Archives show e-mail from Eric Swartz Wed, 05 Nov 2003 18:44:03 -0800
That says the electret is the same in the MH2 and MD2 mics.

Step 6 on KSB2 errata rev C-5 says

Page 18, Table 2: If you plan to use an Elecraft MH2 microphone, follow =
the instructions supplied with the
mic. The mic kit includes 8 small jumper blocks for configuring the =
Front Panel mic header, as well as a 5.6-k
resistor for providing bias to the mic element. The resistor must be =
soldered between pins 1 and 6 of the header
after the 8 jumper blocks have been installed. NOTE: Do not disassemble =
the MH2 microphone, as it may be
difficult to reassemble it correctly. If the unit appears to be =
defective, return it to Elecraft for replacement.

Of course, the K2 was supplied with a 10 K resistor....

So, my vote is 5.6 K between pin 1 and 6 of the header, but I don't
like the idea of soldering it there.

73, de Michael, AB9GV