Hello All. For sale socket for GU84B http://www.ebay.com/itm/GU-84B-gu84-4cx2500a-original-chimney-socket-/261096039821?pt=LH_DefaultDomain_0&hash=item3cca89658d For sale socket for GU74B http://www.ebay.com/itm/socket-for-tube-GU74B-4CX800-/261096583563?pt=US_Radio_Comm_Tubes&hash=item3cca91b18b 73! Vladimir UX3LV