[Elecraft] What Gauge Wire for PS?

[Don Brown]

----- Original Message -----
From: Don Brown
Sent: Monday, April 01, 2002 12:17 PM
To: Dan Barker
Subject: Re: [Elecraft] What Gauge Wire for PS?

Hi

First I don't see a problem with .37 volts drop out of 14. It should not =
be noticeable. However there are some simple ways around the drop. The si=
mplest solution is to use 16 or 14 gauge wire from the power supply and s=
plice 2 or 3 inches of 20 gauge wire onto the larger wire to fit into the=
 connector. =20

Another way is use a power supply with remote sense inputs. Then you can =
run 4 small wires say 22 gauge with the current and voltage sense wires c=
onnected at the K2 connector. The power supply will automatically compens=
ate for the drop in the current carrying wires and will force the correct=
 voltage at the K2 connector. Many small L-frame power supplies have this=
 ability. Most people just short the voltage sense to the current termina=
ls at the power supply. This disables the remote sense. If the power supp=
ly has the remote sense why not use it and build up a 4 wire cable for yo=
ur K2. You may need to add a .01uf cap across the sense or add a RF choke=
 in series with the sense wires at the power supply to keep RF out of the=
 regulator circuit.

Don Brown
KD5NDB =20

----- Original Message -----
From: Dan Barker
Sent: Monday, April 01, 2002 11:40 AM
To: Elecraft
Subject: [Elecraft] What Guage Wire for PS?

The "ground" at the rig is higher by the voltage drop on the RETURN line,=
 just as the "juice" at the rig is lower by the voltage drop on the SUPPL=
Y line. Their difference is double the drop on either.

Hail Kirkoff!

Dan / WG4S / K2 #2456 on 16 Guage wire (WAY Overkill).

<snip> Huh???? Doug W6JD <snip>


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