[AMPS] SB-220 Mods

[Bob Hutchinson]

This is a multi-part message in MIME format.

------=_NextPart_000_0001_01BDF51F.A504FA00
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

I just completed installing the Rich Measures QSK circuit in one of my
SB-220s and it works great. Clackity-clack absolutely gone, noise and relay
delay no longer perceptible.  Really fast, smooth VOX. VOX delay set now to
minimum.

Every measurement in testing is exactly as in the Measures circuit diagram.

I am now going to modify another SB-220 with this circuit.  There is plenty
of room for a circuit board for this entire circuit after the clackity clack
is removed.  Has anybody ever produced such?

And to Rich - The silicone adhesive really stops or greatly dampens the
noise.  I believe the thick silicone insulation on HV test lead wire (26KV
type) will dampen the relay noise and would be an acceptable alternative to
the tedious copper foil fabrication and soldering for two of the
connections.  Perhaps slitting and removing the insulation from a length of
HV test lead and applying it to the heavy wire to the HV RF section with a
dab or so of silicone will dampen the noise also.

Great project fun.

Bob, N5CNN

------=_NextPart_000_0001_01BDF51F.A504FA00
Content-Type: application/ms-tnef;
	name="winmail.dat"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
	filename="winmail.dat"
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=

------=_NextPart_000_0001_01BDF51F.A504FA00--


--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm