How to add 10m to a TL-922A

The “A” model was the American version that did not have 10m enabled. It is not a difficult upgrade and only requires two new 120pf 500 volt Silver Mica capacitors, and a jumper wire on the output band switch wafers. All reworking is simply removing a small screw, capacitors and changing connection points on the 10 and 15m coils and then adding the two 120pf caps.

The instructions are as per this pdf file.