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

Davewantsone · 27th Dec 2018, 11:24 am

Like I have said before my HX102 works perfectly and apart from slight adjustment of the tuning preset caps no further alignment was needed. I enclose scans of the circuit and a scan of the radio. In my previous posts the chinese translation clearly state the osc coil is black!
All you need to do to check if the amplifier is working is turn the volume control to maximum and touch the wiper with a uninsulated screwdriver you should hear a 50Hz hum out of the speaker which will vary if you turn the volume control.

27th Dec 2018, 11:24 am	#63
Davewantsone Hexode Join Date: Dec 2011 Location: Wigan, Greater Manchester, UK. Posts: 291	Re: More Chinese AM radio kits Like I have said before my HX102 works perfectly and apart from slight adjustment of the tuning preset caps no further alignment was needed. I enclose scans of the circuit and a scan of the radio. In my previous posts the chinese translation clearly state the osc coil is black! All you need to do to check if the amplifier is working is turn the volume control to maximum and touch the wiper with a uninsulated screwdriver you should hear a 50Hz hum out of the speaker which will vary if you turn the volume control. Attached Thumbnails Last edited by Davewantsone; 27th Dec 2018 at 11:42 am.