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

ben · 14th Jul 2019, 9:27 pm

Hi Paul, I remember that thread very well!
The bulb is okay, and in any case that affects the bias oscillator. In mine, as on yours, the fault is on the power amp board which causes the instability. I will change the suspect transistor, I have found a slightly beefier MP2062 which is also PNP, that looks like it would do.

If I can find one, I will change the zener too. watch this space.

14th Jul 2019, 9:27 pm	#5
ben Dekatron Join Date: Aug 2006 Location: Madrid, Spain / Wirral, UK Posts: 7,498	Re: Tandberg series 15 - hummin', bumpin' and thumpin'! Hi Paul, I remember that thread very well! The bulb is okay, and in any case that affects the bias oscillator. In mine, as on yours, the fault is on the power amp board which causes the instability. I will change the suspect transistor, I have found a slightly beefier MP2062 which is also PNP, that looks like it would do. If I can find one, I will change the zener too. watch this space. __________________ Regards, Ben. Last edited by ben; 14th Jul 2019 at 9:56 pm.