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Or by email g0eyo@blueyonder.co.uk
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Hi
I have some Crystals for an Eddystone EC964 receiver. Would anybody
still have any use for these?
Kind regards
1Dave
I lucked into a really nice 640 which looks good enough that I will likely not need to do a refinish. The finger plate is another story however as it is badly worn and I do not believe can be reclaimed. Would prefer a replacement plate obviously but a CAD file of the artwork would help as well. Look forward to hearing from you.
2Nick have you contacted Ian Nutt he sometimes has finger plates or looked in Restoration section for artwork. Best to use the Eddystone User Group.io forum for these requests has bigger audience
3Chris G0EYO
The artwork for a 640 fingerplate is posted on the EUG website under ‘restorations’
4I was interested in the scam article. I have restored many classic communication receivers, including several Eddystones. Frankly I would have been extremely suspicious about such a low price including shipping. Shipping across the Pacific is expensive, I have been quoted over $280 NZ to ship a receiver to the USA from NZ. That would be about $240 Aus. So if it looks too good to be true, it almost certainly is, is the best policy.
5I picked up 2 receivers an 770u and an 850\2 I don’t know anything about either. They look like they are worth restoring. there are currently no power cords connected. Can you supply information to get me started also explain the controls on the front panels. I appreciate any help.
Best regards
6Rick
Hello, lots of excellent information.
7I need a schematic for my Eddystone Radio
Type S830/4
It has a powersupply problem.
It is in your list, flagged to Download.
I tagged it ( but no download was initiated ) what do I do for the Download/?
I live in Sault Ste Marie – Ontario CAN
Thank you, Jack Lalonde
jrlalonde@shaw.ca
Jack
8I have just been on the site and found no problem in downloading the pdf for the 830/4 manual (its 54 pages). Suggest you try it again
Regards
Chris G0EYO
Hi Jack. If you are still having problems I can email you the manual for the 830/4
9Just found a bit of an oddity with the crystal calibrator on a newly restored 830/7. This set has been completely rebuilt and aligned with excellent results. However I’m bemused by the calibrator. The output of this unit seems to have the property of swamping (overloading) the first mixer circuit on some of the bands – most notably the higher bands using double conversion. This swamping can be modified by adjusting L37 with the effect that it is increased on some bands and lessened on others. It initially manifests itself by virtue of the fact that the audible loudness of the tuning beat note varies from band to band, and on a ‘quiet’ band, the loudness can be increased by detuning the mixer stage with the Peak RF control. A similar result is achieved by disconnecting the calibrator output lead and instead holding it in close proximity to the calibrator box. The calibrator itself has been set to exactly 100 KHz, but I can find no information with respect to achieving an optimum setting for L37. My observations would suggest that it tends to vary the proportion of the various output harmonics. I would appreciate any observations/advice on this and I wonder whether anyone has observed anything similar?
10Phil MW0KGP
Phil
11You would be better asking this question on the groups.io forum as it will be read by more active EUGers
Chris G0eYO