23-01-2018, 02:01 AM
(This post was last modified: 23-01-2018, 02:15 AM by Peter08012018.)
when I wiggle the valves, (or moved the receiver from storage to the work bench) the "endstufe" NF amplifier EBL1 scratches and goes off, after more easy turning of that valve (Röhre), a few degrees flat forth and back, it fastens and the humm is again constant.
The metal brick below the valves and large condensators (or shielded tubes) is closed, and no chance for me to access it, without spoiling it.
I will try to find a new owner as it is.
However I am curious and would still like to find: can I see the tuning circuit work, or the IF work. What I do have is a dip meter that I don't know well how to use. But to get understanding of the dip meter I can build an LC circuit, I do have blue inductances, and a coil marked "50" historical (and of course C in any quantity and capacity and know the formula). The blue inductances would be sized like large tantal C, not coily form factor.
The metal brick below the valves and large condensators (or shielded tubes) is closed, and no chance for me to access it, without spoiling it.
I will try to find a new owner as it is.
However I am curious and would still like to find: can I see the tuning circuit work, or the IF work. What I do have is a dip meter that I don't know well how to use. But to get understanding of the dip meter I can build an LC circuit, I do have blue inductances, and a coil marked "50" historical (and of course C in any quantity and capacity and know the formula). The blue inductances would be sized like large tantal C, not coily form factor.
