[Elecraft] Freq. counter probe capacitor

[Don Brown]

Hi

When building the probe hold the tip in a small vice or a alligator clip =
and fill the cup with solder (you can also wrap several turns of rubber b=
and around the handles of your needle nose pliers to hold them closed gri=
pping the probe tip). Clip and quickly tin the cap leads. Then heating on=
ly the probe tip insert the cap into the cup. Pre tin the center conducto=
r of the cable and quickly tack solder the cap and center conductor. This=
 should prevent overheating the cap.

Don Brown
KD5NDB

----- Original Message -----
From: Bill Magruder
Sent: Tuesday, October 08, 2002 3:35 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Freq. counter probe capacitor

Just completed mine counter probe.  Look in the little yellow bag.  The b=
ag
should have the tip a couple glass diodes along with the cap.  axial cap,
grain of rice describes the size, yellowish orange, with 10j marking.

I headed the advice of the other reply and
I soldered the cap to the center conductor of the coax quickly.  Then on =
the
tip side I put a heat sink between the cap and the tip.  The mass of the =
tip
must be 10 times the mass of the cap and I didn't want to melt the cap.  =
It
took quite a bit of heat on the tip to get a good joint.

Bill
KD7KST


--- StripMime Report -- processed MIME parts ---
multipart/alternative
  text/plain (text body -- kept)
  text/html
The reason this message is shown is because the post was in HTML
or had an attachment. Attachments are not allowed.
Please post in Plain-Text only.---