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

Neil Purling · 10th Dec 2017, 9:40 pm

I got the little sod working after finding the print had lifted on V2 collector & I had the wires on the ant coil mixed. It was gratifying to discover that setting the cores mid-way produced audio, even though T3 & T4 were off the peak. The IF bandwidth seems quite broad.

Then I found that the damn thing would go off again at the slightest touch. I don't know whether to waste any more time on it or build the other one. I don't know whether there is any more lifted print around V2, or elsewhere. These printed circuit boards have thin tracks or they lift easily.

10th Dec 2017, 9:40 pm	#39
Neil Purling Nonode Join Date: Jul 2005 Location: Hull, East Yorkshire, UK. Posts: 2,087	Re: Two or three IF stage Chinese radio kits. I got the little sod working after finding the print had lifted on V2 collector & I had the wires on the ant coil mixed. It was gratifying to discover that setting the cores mid-way produced audio, even though T3 & T4 were off the peak. The IF bandwidth seems quite broad. Then I found that the damn thing would go off again at the slightest touch. I don't know whether to waste any more time on it or build the other one. I don't know whether there is any more lifted print around V2, or elsewhere. These printed circuit boards have thin tracks or they lift easily.