ctc12 clone beam current

[Username1]

Hey, Had a black-out for a few hours this morning... Someone took their pickup a few
quarts of alcohol and went out to get some wood........ Now we got 2 phone poles
on this street cut in half and hangin in the air....

Bill is right about the H-output tube screen voltages, I'm not sure but I think we went over it
before on another thread.... But you better check, the 47ohm, and 13K resistor off pin
4-8 of 6dq5 also suppose to be around 145V there....
My schematic don't have the number, but off the cathode of the damper tube somewhere
should be a test point for B+ Boost, and it should be around 1KV like bill said... Check your
Sams it may have a test point and a number.... 1Kv ~ 1200V ??

Also, since you said you are not a tech, I want to be sure you are aware B+, and B+ Boost
are two different things.... B+ Boost does not come off the power supply section of the tv, it
is part of the voltage from the horiz. output section of the tv..... Generated off the Damper
tube.... They may have a point where they show a test spot, and a Voltage number, so use their
test point....

Did you check or replace the caps on the yoke... C 105 ?? Good one to look at....

.

[timmy]

Originally Posted by Username1

Hey, Had a black-out for a few hours this morning... Someone took their pickup a few
quarts of alcohol and went out to get some wood........ Now we got 2 phone poles
on this street cut in half and hangin in the air....

Bill is right about the H-output tube screen voltages, I'm not sure but I think we went over it
before on another thread.... But you better check, the 47ohm, and 13K resistor off pin
4-8 of 6dq5 also suppose to be around 145V there....
My schematic don't have the number, but off the cathode of the damper tube somewhere
should be a test point for B+ Boost, and it should be around 1KV like bill said... Check your
Sams it may have a test point and a number.... 1Kv ~ 1200V ??

Also, since you said you are not a tech, I want to be sure you are aware B+, and B+ Boost
are two different things.... B+ Boost does not come off the power supply section of the tv, it
is part of the voltage from the horiz. output section of the tv..... Generated off the Damper
tube.... They may have a point where they show a test spot, and a Voltage number, so use their
test point....

Did you check or replace the caps on the yoke... C 105 ?? Good one to look at....

.

ok, the 2 resistors of the 6dq5 have been double checked and are ok. the b+ voltages and the boost voltages i know are from different places and i hope the sams shows a test point for the boost voltage. straight b+ i know comes first from the transformer to the diodes then to the caps. i do have alot of tv experence with the new garbage, smd and so on. i know this chassis dont have a boost diode so ill hope to find a test point at the damper for this boost voltage. i was looking at the rca schematic and c105 is one that is there and ill check that. i also know what the doubler caps do ,lol,lol so i do understand... and the screen voltage at the hot pins 4-8 142 volts and pins 1-5 -56