You can set the sort order of messages? Just click on the link in the date column. Your preferences will be remembered, so you don't have to do it again when you return.
Hello, I've just bought a 770R for restoration which seems to be in reasonable condition except for two fairly big problems. The flywheel friction drive to the...
Hello Keith. The drive cord lacing is described in the handbook. The friction drive is considered to be a factory servicing job and isn't described. The only...
Thanks for that information. Lokking at the drive cable layout, it seems that I'm also lacking the two pulley gears so I'll probably need a scrapper Cheers ...
Hi Keith, Check out my S770R restoration article on the EUG site as well as some of the other restoration articles, which include several photos of Eddystone ...
The EUG website is in the process of uploading the service manual for the IMR54 receiver. However the circuit we are working from is rather poor and difficult...
hello Chris, it's possible that Ted may have one. He's holidaying in the I.o.M. (Brrrr) at the moment. I'll enquire when he returns. Graeme. ... From: g0eyo...
Hello Al / G8DLH, Assuming that the IF is properly aligned, the most likely problem will lie with one of the OC71 transistors. These have now become very...
Al, I think Graeme means the OC171 transistors in the RF and IF stages (the OC71 is in the AF stage). The OC171's have four leads, one of which is an earth ...
... (the OC71 ... an earth ... that ... of the ... GRAEME WORMALD ... will lie ... (ie ... which can ... Determine which ... then ... believe 'new' ... ...
Hi All, I found one Eddystone 5500 in a surplus shop. I made a search in Google for the technical manual but I found nothing. Since this transceiver Xtal...
Hakan I think you might mean Orion 5000, 6 channel 100W transceiver. You can view data sheet in our website www.eddystoneusergroup.org.uk in Data sheet...
Hello Chris, been looking at this one; the 5500 is the military version (shown in QRG). I think it was trialled by NATO but not adopted. There is a big NATO...
To: Alan Ainslie. Thanks for that. From the EUG Web Site I was indeed able to get a copy of the Service Manual for the EC10 - including the supplement for the...
If you send me your email address then I will post you a cct. Maybe I better scan a copy of the cct for the web site. Alan. ... Service ... EUG ... ...
Graeme It could be the 5500 but we sold so few of those and only to Ghana military. We certainly never had it trialled by NATO it was styled just to give a...
Had not realised that the circuit of the EC10 Mk2 was missing the left hand bit. We now have better copy of the EC10Mk2 manual available to put on the web site...
Hi all! EC10 Mk. II. Tuning cord broke whilst other repairs were being undertaken! The manual (from the EUG Web Site) describes the re- stringing procedure for...
Hello Al, I've repaired drive cords on EC10 Mks I & II (not at the same time!) and haven't been aware of a difference. As I no longer have either I'm afraid I...
Hi Graeme - Yes . . . Drive cord trouble . . "Apply the ol' grey cells". There speaks the Voice of Experience. So I did - and fixed it! When I studied the...
I KNOW this sounds awfully bland, but was not the 730/4 particularly designed to a rather exacting spec. issued by the M.O.D.? If that spec. specifically...
Hello Al/Chris, The 730 series was an Eddystone private venture which was adopted by the MoD. It had to be beefed up a little from a mechanical point of view...
Graeme - Thanks for that. I'm always fascinated by the history of individual Eddystone designs, and that has helped fill another gap! Al / G8DLH ... by the...
Gentlemen, Recently acting as a distance learning apprentice to Gerry O'Hara in Vancouver I made a succesfull full RF, IF and discriminator alignment of my...
Hi, any pointers on how to get an 840C out of its case? I've removed the four rear screws but nothing has become free or even looser. Do I need a hammer and...
Hello Nick, The 'official' method for recalcitrant Eddystone cases is to place the receiver face down on its handles and smartly 'slap' both ends of the case ...
Hello Nick, The Really Official way is this: turn the set upside-down (resting on a blanket or similar pad). A couple of inches or so from each end will be...
