UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Tandberg series 15

ben · 22nd Jul 2019, 9:47 pm

Just a quick update. Been running this unit several days and all still well. The voltages are now as per the circuit diagram, and stable. 40v from rectifier and 24v line is just over 23v which seems acceptable.

I had one minor mechanical problem which I will mention in case someone else encounters it. Suddenly the main joystick jammed. This was due to the pinch roller return spring snapping. This spring is anchored to the upper sub chassis behind the heads, and to a notch on the pinch arm below said sub plate. It had fractured at a rather acute bend. I managed to make up a replacement from the junk box. Any recorder not stored in optimum conditions may well have this happen sooner or later if corrosion sets in!

22nd Jul 2019, 9:47 pm	#10
ben Dekatron Join Date: Aug 2006 Location: Madrid, Spain / Wirral, UK Posts: 7,498	Re: Tandberg series 15 - hummin', bumpin' and thumpin'! Just a quick update. Been running this unit several days and all still well. The voltages are now as per the circuit diagram, and stable. 40v from rectifier and 24v line is just over 23v which seems acceptable. I had one minor mechanical problem which I will mention in case someone else encounters it. Suddenly the main joystick jammed. This was due to the pinch roller return spring snapping. This spring is anchored to the upper sub chassis behind the heads, and to a notch on the pinch arm below said sub plate. It had fractured at a rather acute bend. I managed to make up a replacement from the junk box. Any recorder not stored in optimum conditions may well have this happen sooner or later if corrosion sets in! __________________ Regards, Ben.