CBRT has been

amp in or out

This is the forum for asking questions about linear amplifiers or power supplies.
Post Reply
User avatar
skeeter
Donor
Donor
Posts: 154
Joined: Nov 30 2006, 11:03
Contact:

amp in or out

#126668

Post by skeeter »

i got my new 16pill hooked up but i cant tell witch side of the amp is for the antenna and witch is for the radio coax can anyone tell my by looking?
livin life one-lap-at-a-time.
skeeter in the southeastern buckeye wavin a hand from the driver seat of the mudduck mobile.
User avatar
linx

#126672

Post by linx »

The output should be the 239 closest to the power wires. Look inside and the input should have a small capacitor (usually around a 15pf silver mica cap) connected directly to the center pin of the SO239 along with another wire going to the relay. Output will only have one wire on it, going directly to the relay. So, input 2 wires, output one wire.
User avatar
busman
Donor
Donor
Posts: 2,097
Joined: Dec 27 2006, 12:04
Contact:

#126678

Post by busman »

I HAD THAT SAME PROBLEM AND THE FOLKS HERE WERE RIGHT. 239 CLOSEST TO THE POWER WIRES WAS INDEED THE OUT OR ANTENNA HOOK UP. I STUMBLED ON TO A METHOD WHILE DOING THIS. IF YOUR AMP HAPPENS TO HAVE A RECEIVE AMP, TURN IT ON BEFORE YOU KEY UP. IF ITS HOOKED UP RIGHT IT WILL SHOW MORE S UNITS OF NOISE. IF THE IN AND OUT ARE BACKWARDS, THE RECEIVE WILL BE WORSE. OR THE NEEDLE GOES BACKWARD. IT WORKS TO CAUSE IT HAPPENED TO ME AND I JUST HAPPENED TO TRY THE PRE AMP FIRST. THE NEEDLE SWUNG BACKWARDS. AND THE OUT WAS INDEED THE CLOSIST ONE TO THE POWER WIRE.
User avatar
Sverucci2
NEW DUCK
NEW DUCK
Posts: 2
Joined: Jul 11 2023, 18:44
Handle: 122
Real Name: Scott
Contact:

#411736

Post by Sverucci2 »

What would happen to the amp or radio if it was used with the radio/antenna wires reversed?


Post Merge Complete

Added 17 minutes 38 seconds after previous.
What would happen to the amp or radio if it was used with the radio/antenna wires reversed?
User avatar
MDYoungblood
Verified
Site Admin
Site Admin
Posts: 10,798
Joined: Jun 12 2010, 20:05
Handle: MDYoungblood
Real Name: Gregory
Antenna: HyGain AV-6160
Radio: Icom IC-746 (non pro)
Contact:

#411739

Post by MDYoungblood »

What would happen is the amp would not key up as the wattage is going through the relay will not go to the switching circuit. Damage can occur to both depending on the type of amplifier.

3's

Greg
"321, West Manchester Township, PA"

Official Moderator - CBRT Complaint Department
Post Reply