Hello my friends.
I have bought recently a almost unused reel to reel tube recorder, Geloso G258.
But I have some problems in the recording mode and it would be a enormous help if someone can share his knowledge.
The recorder It is fully functional in the play mode but while recording the situation starts to change.
The first 10 minutes of recording it records quite nice but after 5 minutes the recording volume and quality are falling and crashing unbelievably. The same things happen and with his erase function while he records.
After 10 minutes you can hear very clear the old recorded sound in the background of the new one. If i turn it off and let it cool for 1 hour and put it back, it does the same thing again. Starts well but it falls after 10 minutes.
I suspect the problem is in capacitors but before I start changing them randomly, I thought maybe someone knows more.
In general I would prefer not to change all the capacitors trying to keep it with its original components.
I also have his electronic diagram for anyone who can read it.
I wish someone could help
Sorry for my bad English