Petrol tank cap wanted for SW5. It has two internal clips, and is held together by 3 rivets.
Does anyone have one please? 
Thanks,
Roger, UK

Seen on eBay thanks..

Have taken a punt and listed on Ebay:

https://www.ebay.co.uk/itm/116565760744

Now for sale on Ebay.  I see.     116565760744
Jonathan 

Hi do you have a figure in mind?

Super appreciated sir 🙏🏻🙏🏻🙏🏻 Will update you when we get it all working

Here is what I have inside the cover of the 1935 OW1 foot change gearbox. No kick start nor Bendix. Also I am not sure what the purpose of the peg is inside the post for the Bendix. On the 1934 OW1, it is just a hollow post for the Bendix to spin on. There is no need for anything in the center.





And a link to a video of the slightly anemic spring action:

Link to MP4 video in action HERE (1Mb). 

-Doug

Quote from: EW-Ron on 15 Apr 2025 at 09:38 Did ye find what Mathew Ryans interest in this was ?
The reviews don't seem to say ?

And a final comment - as a lad, a mate and I experimented with spark gap 'broadcasts'.
A spark plug mounted up a TV antennae could be easily received a good mile away - on an am radio.
(We limited broadcasts to a few blips, being well aware that this would be annoying to regular am listeners,
across quite a wide spectrum of the am band 1)(and illegal, it would seem)

Hi EW-Ron,

I'm not 100% sure of what originally "sparked" (excuse the pun!) Matthew's Ryans interest in this but it appears to be possibly related to Amateur Radio. There is a coincidence related to in the text that involves Amateur Radio. I have attached a picture of the frontispiece of the book which has a summary of the author, which also contains a prelude to the coincident....

I bought the book online from the cheapest place I could find. Stock appeared to be limited. Since then I have found a link to an Instagram (I have never used this app) post by Matthew (matt_studio20) saying he had a few books left (4 months ago?) The price listed there at $40 plus postage, is only slightly less than what I paid. No idea if he is still contactable by Instagram or that he has any books left?? I found a reference to some talks he was giving about the book recently - will see if I can find if he is going to give any more talks (most likely in the Sydney area?)

(Edit: There was a talk by Matthew Ryan as recently as 5th April 2025.....

https://www.hambledoncottagemuseum.org.au/events)

Ryan, in his book, has built on the research work carried out by the Catholic Church and also by J.F. McMahon, who, in the 1980's wrote some research works on the subject of Shaw and his endeavours.

§ J. F. McMahon, 'Father Archibald Shaw: the wireless priest', Australian Catholic Historical Society Journal, 7, pt 3, 1983, p 24


A summary of this was published in the Australian Dictionary of Biography volume 11 in 1988.

https://adb.anu.edu.au/biography/shaw-archibald-john-8404


Like you Ron, I dabbled in radio stuff in my youth, which led to me gaining an Amateur Radio Licence. I have not pursued that hobby for quite a while, but may get back into it when I finally manage to retire. In a strange turn of events, in the sunset of my professional career I'm am actually involved in "wireless" projects that are fairly wide-band in nature - much like a spark gap transmitter, but without the spark ! I am enjoying working on that - but it is only delaying my actual retirement date ! :-).

Cheers

Hutch

I wish to offer my 1936 Aero 250 for sale. I'm not sure about the value but would like to gauge interest and would be grateful for any advice on a sensible price. 
I acquired the bike as a fairly complete non runner in n 2020 and have finished the restoration which was started much earlier by a previous owner. The bike was a runner but has been garaged for over a year so will need commisioning. 

Its great that there is even one book on him, and this subject.
And that you found a copy, and read it. !

Maybe later editions can include this, our little known side-note of duggie engines as spark generators,
and the Navy producing (illegitimate ?) copies of such new-fangled technology.

What slightly amuses me is that I once lived only a few blocks from this - many years later - and had no inkling.
The radio tower and factory were long gone by then of course, and radio technology had progressed in leaps and bounds. ..

Did ye find what Mathew Ryans interest in this was ?
The reviews don't seem to say ?

And a final comment - as a lad, a mate and I experimented with spark gap 'broadcasts'.
A spark plug mounted up a TV antennae could be easily received a good mile away - on an am radio.
(We limited broadcasts to a few blips, being well aware that this would be annoying to regular am listeners,
across quite a wide spectrum of the am band 1)(and illegal, it would seem)