[HBQRP] Saturdays meeting
Ray McNally
raymcn at gmail.com
Wed Aug 9 19:43:41 EDT 2017
Just a quick reminder...
A couple of us will be there early to work on the antenna. Planning on
around 0900 or 0930.
I am hoping we can make some circuit boards for a crystal checker circuit.
the parts needed are:
(2) 2N3904 (I have some SOT-23 version, no TO-92s)
(1) LED
(3) .01uF capacitor (I should have some 1206 SMT, Still looking for
leaded ones)
(1) 330pF capacitor (
(1) 18pF capacitor (
(1) 100K resistor (
(1) 1K resistor (
(3) 100 ohm resistor (
(1) current limit resistor for the LED - normally 220 to 470 ohm works but
value needs to be verfied.
I will have the PCB material, Darrel should have the PCB etching
materials, If anyone has any of the parts listed, please feel free to bring
some. I am hoping to have 10 to 15 people show and build the circuit.
We also may have a small buffer amplifier to use a DDS to drive a crystal
input for a tube radio. I am working on the circuit layout for this.
Look forward to seeing all who can make this meeting.
73,
Ray - N5SEZ
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