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Old 23rd Dec 2018, 9:54 pm   #45
Neil Purling
Nonode
 
Join Date: Jul 2005
Location: Hull, East Yorkshire, UK.
Posts: 2,082
Default Re: More Chinese AM radio kits

I should have said: "Made a KX168 that worked!. It just would not oscillate, not even when I swopped the black coil for a red one. I find it hard to believe the radio would ever work with the coils apparently in the wrong positions. Were you just lucky, or did you buy one ready-built? Yes, you can buy them ready made.
The KX168 was a vast disappointment, but the case has greater depth and uses a slightly larger diameter speaker. The PCB of the KX168 has different dimensions to that of the S66E and HX-6B, so you can't swop the boards and run the circuit from a CR123 battery.

There's another kit, called BSE818 that has a deeper case. It is still the six transistor type, but seems to have a push-pull o/p. The kit uses a pair of 'D' cells. That one also appears to have the odd order of coils. We'll see what happens when it arrives.
I am also awaiting a variant on the HX108-2 'long' superhet. The HX108-2A replaces the audio stages with a 8-pin 2822 IC.

Last edited by Neil Purling; 23rd Dec 2018 at 10:06 pm.
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