Electronics > Beginners
This Russian push pull tube amp output is really confusing me.
ELS122:
I just can't even start to understand where the speaker connects, how it even works and it's just weird.
Also the 2 power transformers are just weird x 1000.
https://www.gstube.com/schemes/pics/Us/001.gif
ELS122:
Like.. A choke from the ground. And supply for the preamp coming from the screen???
glinjik:
what i can tell you is the components are soviet era so diodes
д7ж =https://eandc.ru/catalog/detail.php?ID=5758
i don't know what part of the world your in but i suspect it would be v difficult to get those parts equivalent parts would need to be compared carefully of course here i can buy those parts easy :) I've given you a link to that diode maybe you use Google Translate or something?
Gyro:
It looks like output stage cathode feedback, but using an AC coupled centre tapped inductor rather than (the more usual) dedicated cathode windings on the output transformer. Look up the QUAD II 22 for an example of normal opt cathode feedback.
hermitengineer:
Hmmm... if you keep a screen at a lower potential than the cathode, could it become a parasitic draw rather than a control? Because they seem to be expecting that, and using it as a feature. I'm assuming that the speaker connects to the leftmost terminals?
Never mind. The leftmost terminals must be the input, and the transformer labeled Amp1 must be where the speaker(s) connect.
Navigation
[0] Message Index
[#] Next page
Go to full version