UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Two or three IF stage Chinese radio kits.

Neil Purling · 8th Dec 2017, 11:25 am

I have finished a HX-6B & all I have is audio 'hiss'. Oh

I get no heterodyne whistle if I place the radio on top of another & tune up & down the band. You expect to get a whistle as the local osc of one beats with the other at a particular point. I must investigate the situation with a sig gen.
I have put the OSC & IFT cores at half way & will start from scratch.

Has anyone found that the cores of all the inductances were so far out they would not pass any signal & the set was otherwise silent apart from audio stage hiss.

8th Dec 2017, 11:25 am	#34
Neil Purling Nonode Join Date: Jul 2005 Location: Hull, East Yorkshire, UK. Posts: 2,086	Re: Two or three IF stage Chinese radio kits. I have finished a HX-6B & all I have is audio 'hiss'. Oh I get no heterodyne whistle if I place the radio on top of another & tune up & down the band. You expect to get a whistle as the local osc of one beats with the other at a particular point. I must investigate the situation with a sig gen. I have put the OSC & IFT cores at half way & will start from scratch. Has anyone found that the cores of all the inductances were so far out they would not pass any signal & the set was otherwise silent apart from audio stage hiss.