Electronics > Beginners
cathode follower outputs 200vdc
ELS122:
I have a basic triode gain stage going into a cathode follower without a coupling cap and the cathode follower is outputting 200volts? shouldn't it not output dc?
I didn't have the gain stage before and it didn't output dc so :wtf:
gbaddeley:
Under DC static conditions and normal biased operation, the cathode voltage will be more positive than the control grid, by a few volts. Check the theory of operation of your circuit.
ELS122:
so basically I need a coupling cap if I want to connect the cathode to something that needs a clean ac signal?
the theory behind it was really long so I thought that I could just follow the circuit that was shown and it will work.
I guess I'll go read it
IvoS:
Post a schematic.
ELS122:
I know that the first stage is over biased but ehh...
I now added a 68nF couplig cap on the output of the cathode follower cause it was outputing dc
Navigation
[0] Message Index
[#] Next page
Go to full version