UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - FM tuning drift

Mick Mearman · 29th Apr 2007, 11:41 am

Just a shot in the dark here but does tapping the tuner cause a drift? if so are there any spring metal earths on the shaft inside the tuner? I say this because they used to be a nightmare in early TV UHF tuners we used to unsolder them clean them and refit, they remained a problem until varicaps came in then we had problems with the 30 volt stabilizers drifting.

29th Apr 2007, 11:41 am	#11
Mick Mearman Retired Dormant Member Join Date: Feb 2005 Location: Kingswinford, West Midlands Posts: 0	Re: FM tuning drift - any ideas? Just a shot in the dark here but does tapping the tuner cause a drift? if so are there any spring metal earths on the shaft inside the tuner? I say this because they used to be a nightmare in early TV UHF tuners we used to unsolder them clean them and refit, they remained a problem until varicaps came in then we had problems with the 30 volt stabilizers drifting.