Eddystone User Group

Archive for the ‘News’

Postscript to ‘Installing a 500KHz Crystal Calibrator Unit in an Eddystone S.940’ – Gerry O’Hara, VE7GUH

May 11, 2020 By: chris Category: News

Following his recent article on the fitting a 500kHz Crystal Calibrator in an Eddystone S940, Gerry has gone a bit further and fitted a Digital Frequency Meter. You can read about it here Postscript to Installing Xtal Calibrator in S940

Eddystone S888A Revisited by Gerry O’Hara VE7GUH

May 09, 2020 By: chris Category: News

Following a house move Gerry O’Hara VE7GUH got his S888A Amateur band receiver out of store and decided to give it the once over. When he bought it some years earlier from a UK ham he didn’t even give the set his usual thorough check-out as it was in very good cosmetic condition and performed well. As a consequence he never wrote an article on it for the Restoration section of our website. Well he has given it a thorough check out and written it for us to enjoy.Eddystone S.888A Revisited

Mains Filter Unit 732 Manufacturing Data

April 21, 2020 By: chris Category: News

Following a request from John G8GMB, Ian Nutt M0ECQ  has found manufacturing information on the Mains Filter Unit Model 732 which was designed specifically to reduce interference on board ship where the sparking at the dynamo commutator was notoriously ‘dirty’. Intended especially for the AC/DC sets model 670 and 670A . You will find this in the Technical/Service Manuals folder under Accessories.



Installing a 500kHz calibrator in an S940 by Gerry O’Hara VE7GUH

April 18, 2020 By: chris Category: News

Gerry O’Hara shows you how to install the 500kHz calibrator for an Eddystone 730/4 into an S940 he was working on. The S940 has reasonable scale accuracy, claimed to be 0.5% on all ranges in the specifications – sounds ok, but that’s 150KHz at 30MHz, so it would be useful to have a calibration signal (‘pip’) to inject when needed. 500KHz crystal calibrator in an Eddystone S940

Eddystone S940 Re-visited by Gerry O’Hara

April 13, 2020 By: chris Category: News

Gerry recently spent the evening checking out anew antenna with my Eddystone S.940, recently brought out of ‘mothballs’ in the garage. The receiver was giving a good account for itself on the 50‘ of wire but he noticed a few problems with the BFO so decided to give it the once-over and has written account for you all to read Eddystone S.940 Revisited


My Eddystone S.640 Revisited – Gerry O’Hara VE7GUH

April 11, 2020 By: chris Category: News

Gerry VE7GUH has revisited his Eddystone S.750, article here, and while waiting for my next ‘customers’ radio restoration project to arrive, he was looking for another ‘distraction’ as he was holed-up in the house due to the Covid-19 virus like everyone else. Then he remembered that I he had come across a reproduction finger-plate and scale plate for my S.640 in his box of Eddystone bits and pieces while he was retrieving the powder-coated front panel casting for the S.750. Eddystone S640 Revisited 2020


New Restoration Article by Gerry O’Hara VE7GUH: – Eddystone S750 Revisited 2020

April 07, 2020 By: chris Category: News

Gerry has written a follow-on article on the restoration of his 2006 piece on restoring an S750. Shortly after restoring the S750 he obtained a replacement cast front panel which he eventually had sand blasted and powder coated. Finding a fault on the S750 he decided to replace the front panel whilst he was repairing the receiver. You can find the article here Eddystone 750 Revisited 2020



New EC10 Mk1 dial scale artwork in Restoration folder

March 20, 2020 By: chris Category: News

Richard G8MWQ has been restoring a recently purchased EC10 Mk 1 which was in a pretty poor state. The first thing he noticed was the frequency scale was badly damaged. There were sufficient markings left to allow him to redraw the scale using a software package called Eagle CAD. The redrawn scale was mirror printed onto a piece of Inkjet Printable A4 Clear/Transparent Vinyl Glossy Self Adhesive Sticker from Amazon, this was then attached to the rear of the original glass (after cleaning off the remaining silk screen print), Richard attached the PDFs to a recent EddystoneUserGroup forum e mail so I have added them to the restoration section of the website. Richard say please make sure that when printed the horizontal scales are 250mm length. He also say that note, the writing is black which shows up remarkably well against the grey background, as CMYK printers cannot print white this was considered suitable. – Chris G0EYO



Would you like to make a donation for the upkeep of this website?

January 06, 2020 By: chris Category: News

Access to the information on this website is freely available to everyone. However web-sites don’t come for free and we have just paid our annual ISP bill and have also recently paid to have the Yahoo forum transferred to Groups.io. We are fortunate to be able to fund the website and the maintenance of the archives through generous donations from our users, so we rarely need to make a direct appeal.  However with recent expenses this is probably a good time to make such an appeal. So, if you have found this website useful, and would like to make a contribution to its upkeep you can make a donation via paypal using account donations(at)eddystoneusergroup.org.uk  ( replace (at) with @) marking the payment as gift to avoid paypal charges. Alternatively you can do a bank transfer, so contact our EUG Patron, Chris Pettitt G0EYO via e mail g0eyo(at)blueyonder.co.uk  and he will send you instructions on how to make a donation.




Join the Eddystone User Group Forum

October 17, 2019 By: chris Category: News

Eddystone User Group Forum

Want help on servicing your Eddystone?.  Got good advice for others who may need help?. Want to exchange information?. This forum is for the use of all who appreciate the radios and associated items made by Eddystone Radio in the UK. It is hosted on the Group.io site https://groups.io/g/EddystoneUserGroup under the moderation of EUG Trustees Chris Pettitt G0EYO, Chris Harmer M0HMR and Gerry O’Hara VE7GUH. We would encourage you to sign up to the forum. To join send an e mail to Chris G0EYO g0eyo@blueyonder.co.uk stating your callsign if you have one, or your location and why you want to join the group. We will then send an invite for you to join. We currently have nearly 500 members in the group. First postings are moderated but only to protect us from the usual internet problems.

A great deal of Eddystone equipment is still in use by those who appreciate the looks, the classic mechanical and electrical design, and the superb operating “feel” of these radios.  For over 50 years, the Eddystone brand was the radio of choice for Governments, Armed Forces and Maritime Services worldwide. Please use this site for discussion, reminiscences, anecdotes, sales and wants, indeed anything relating to Eddystone equipment and associated topics.