Murphy 618 AP 100333 Transmitter on air - UK Vintage Radio Repair and Restoration Discussion Forum

GW3OQK Andrew · 13th May 2011, 12:26 pm

Today I put this old naval tx on air for a successful AM QSO. Does anyone know a likely date for it, or when it might have ended active service? (serial MR 14 MK) I see "1955?" mentioned on web, but there are no dates on the tx or in the manual.

I made a psu and control unit for it, laying out a pcb because of the complexity. The set needed some repairs and I could tell by the burnt insulation someone had been looking for those same faults. Now its going ok and will put on air with a CR100 for some vintage events.

Andrew

Alan Stepney · 13th May 2011, 1:41 pm

Around 1955-58-ish. It followed on from the B40 series (Rx) and associated Tx.

So, the "1955" is probably correct.

13th May 2011, 12:26 pm	#1
GW3OQK Andrew Pentode Join Date: Apr 2011 Location: Swansea, Wales, UK. Posts: 144	Murphy 618 AP 100333 Transmitter on air Today I put this old naval tx on air for a successful AM QSO. Does anyone know a likely date for it, or when it might have ended active service? (serial MR 14 MK) I see "1955?" mentioned on web, but there are no dates on the tx or in the manual. I made a psu and control unit for it, laying out a pcb because of the complexity. The set needed some repairs and I could tell by the burnt insulation someone had been looking for those same faults. Now its going ok and will put on air with a CR100 for some vintage events. Andrew

13th May 2011, 1:41 pm	#2
Alan Stepney Rest in Peace Join Date: Feb 2008 Location: Dorset, UK. Posts: 947	Re: Murphy 618 AP 100333 Transmitter on air Around 1955-58-ish. It followed on from the B40 series (Rx) and associated Tx. So, the "1955" is probably correct.