[Central-Electronics] Removing coil covers of the 200V

[Gutfrucht, Alan]

Kihwal,

If you are referring to the coil modules on the 200V they are plug-in
units. Give them a good wiggle and tug side to side and they will come
out. You can then easily remove the cover.

As far as the VOX, I have found that the 200V definitely needs a high
impedance mic to operate correctly. Stay away from the the D-104 with
the amplified circuit and go with a true "boat anchor" high impedance
microphone.

73, Alan, WB2FZC


On Fri, Feb 26, 2021 at 6:07 PM Kihwal Lee via Central-Electronics
<central-electronics at mailman.qth.net> wrote:
>
> Hi,
> What is the easiest way to remove the 2nd mixer and the driver coupler cover?  I see small a screw at each side, which doesn't look easy to get to.
> Also, did anyone else have to raise the heater voltage of the V1 mic amp to bring the plate current and voltage per spec? At 3.7V, there was very little plate current. I had to shout into the mic to get any output or VOX work.  When I raised to about 5V, it worked normally.  I tried with multiple NOS 6BL8s and microphones.
> 73,Kihwal, K9SUL
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