Monday, December 19, 2016

Email Address Update
My email address has changed to:

The 3rd edition is almost done, the 2nd edition (non L & N models) is still available.

Thursday, May 12, 2016

Yes I really am getting around to the 3rd edition, been distracted with other things. Aiming for sometime in 3rd quarter 2016.

Thursday, February 12, 2015

Coming Soon - Restoring The Marconi R1155 Receiver 3rd Edition

I am preparing a new edition of the book. Thanks to the efforts of Ian Ropper ( it will include wiring details of the coil box for the R1155L & N variants.

These receivers added a 1.5 to 3.0 Mhz band, deleting the 75 to 200 kHz band. The coil box wiring is completely different, but the remainder of the receiver is the same.

If you have an L or N you have been thinking of restoring, the 3rd edition is what you will need.

I hope to have it available soon.

Tuesday, December 16, 2014

Sunday, December 7, 2014

Rebuild slideshow on Youtube

I have now rebuilt the sorry looking R1155 shown below. You can see a slide show on YouTube here:

Hours of work reduced to 4m 33s. Turn the volume up and enjoy the journey.

I will (eventually) post some video of the receiver in operation, in communications mode (on  the VK 7.125 MHz a.m net) and in DF mode, on the RAAF Amberley NDB.

Monday, October 28, 2013

All has been quite on the R1155 front for a year or two. I have acquired a T1154 transmitter and used the receiver and transmitter together on the VK 40m a.m net. I have just acquired this rather sad example of what I think is an R1155E. The serial number plate is so rusted away I can barely read the serial number which appears to be ?0423. Anyway, it will give a good chance to go through the book again to check for errors.

Thursday, February 3, 2011


Rebuilding my second receiver using my book as a guide I found some errors as listed in earlier posts. Also some of the instructions were a bit unclear. I have revised the text in a few places, included all the corrections listed below spotted by readers and myself. I have also added some additional debugging information that may prove helpful. This is largely just additional measurements of the HT+ to ground and HT- to ground resistance values that change with different positions of the Master Switch AND Band Switch.

The price remains exactly the same despite the rising Aussie dollar. The cost is £34.30 inc post and packing to the UK from Australia. I accept payment by PayPal.

Contact me at:

pnholtham at optusnet dot com au

Here's No2. Note the white lettered labels, these have been redone using white decal (water slide transfer)paper, printing white letters (no ink) on a black background.