Grundig TK23L audio problem
Hi, Im hoping someone has come across the following problem before, and save me hours of testing.
I was given a 1965 Grundig TK23 reel to reel, which was dead. After replacing some obviously faulty resistors, and a good clean up, it bust back into life.
Everything works as it should, except on playback, the volume is sometimes low, with quite a bit of hiss.
On tapping the connector junction from the playback head, it suddenly gets perfect. I have re-made the solder joints many times, all to no avail. its quiet, till a tap on the red lead from the head brings it back to life. I would like it working 100%, its a great old thing, and has a remarkably good tone.
Thank you in advance
|