[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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