I'm going to power a solid state amp with about 120 amps of 13vdc. I'll
need
about 6-8 feet of wire to get from the PS to the amp. What wire size should
I
use?
73,
Vic, K2VCO
Fresno CA
Vic,
First, you ever find one of those Pride amps for your QRP rigs?
Second...
For your application I am assuming your running app 8 transistors?
I use #2 guage out the back of my 8 transistor amplifiers. All
interconnects are done with #8 wire (inside the amp).
Another thing you might want to do to keep peak current and voltage up is
take a remote sense to the closest point to the collectors of the
transistors (probably the interconnect from your power supply wire to the
input of the amp).
FYI, I run 8 transistors, 16 transistors and 32 transistors (all 2SC2879s)
mobile. I use 4X165 Amp Leece Neville alternators to power the 32
transistor amplifier... I have found that an 8 transistor amplifier will
draw app 20 amps per device, and that works out to 20 amps a piece... More,
if you run higher than about 14 volts on the collector (it is common to run
about 18 volts DC on the collectors).
I run 4/0 guage from the alternator bank to a battery bank (the entire
length of my Suburban), as well as a single #12 wire from the voltage
regulator to the battery bank.
When doing this project, remember one thing... You can never run big enough
wire....
AND STAY AWAY FROM THOSE QUICK DISCONNECTs! I have seen over a volt drop
from them in the past.. They suck. If it doesn't work on compression, it
doesn't go in my station.
Just some notes from a lowly CBer.
Toll Free
www.bigradios.com/tollfree
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