Remove the coupling loops and inspect the soldering on both connectors.
Thank you for the answer.? ?Next question would be the following.? ? Is it worth repairing these duplexers or just going out and purchasing new txrx?? ?These WP-639 have been in service for 25 years and were starting to have issues with keeping them tuned on the receiving side.? ?
Thanks
Steven?
N8RLW?
