UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - BUSH VHF90A has been dropped-now no reception!

georgesgiralt · 24th Aug 2009, 11:27 am

Hi !
Coul you "hear" the 10.7 MHz IF ?
Get a traffic receiver and tune it to 10.7 and put it near the Bush. If your front end is working you can get the audio signal in the traffic receiver. Distorded because it is not FM demodulated but AM but it will show !
This way you can tell for sure that the VHF head gives a decent job or not.
If your valves were old you could have broken an internal connection in one of them. I've battery valves with broken mica and wire loose inside due to transportation and rough handling.

24th Aug 2009, 11:27 am	#15
georgesgiralt Hexode Join Date: Jul 2008 Location: Toulouse, France Posts: 406	Re: BUSH VHF90A has been dropped-now no reception! Hi ! Coul you "hear" the 10.7 MHz IF ? Get a traffic receiver and tune it to 10.7 and put it near the Bush. If your front end is working you can get the audio signal in the traffic receiver. Distorded because it is not FM demodulated but AM but it will show ! This way you can tell for sure that the VHF head gives a decent job or not. If your valves were old you could have broken an internal connection in one of them. I've battery valves with broken mica and wire loose inside due to transportation and rough handling.