Kevin G6UCY
@rigelme.bsky.social
Interested in anything to do with Amateur Radio especially QRP, Home Construction, VHF and microwaves, Space/Aeronautics, Technology, Science, Science Fiction, Astronomy. Photography, Military History and Engineering. Member of the G-QRP club and RSGB
Unfortunately for the duck it's now on the "things I must get revenge on" list of a number of rather peeved cats. Tends not to be a good place to be that😇
November 29, 2025 at 1:50 AM
Unfortunately for the duck it's now on the "things I must get revenge on" list of a number of rather peeved cats. Tends not to be a good place to be that😇
Might be why they used PTFE as the dialetric on the linear sensors as that ups the capacity somewhat. One point though is the AC signal drive was, I think was in the low Khz range using a multivibrator circuit rather than Mhz, been rather a long time so I cannot remember the actual frequencies used
November 24, 2025 at 11:08 PM
Might be why they used PTFE as the dialetric on the linear sensors as that ups the capacity somewhat. One point though is the AC signal drive was, I think was in the low Khz range using a multivibrator circuit rather than Mhz, been rather a long time so I cannot remember the actual frequencies used
The company I used to work at used tubing on the linear sensors and something akin to air spaced variable capacitors on the angular sensors if that helps. With suitable tubing and suitable dialetric i.e PTFE sleeving/bushings the sensor could be made quite compact, but is scalable
November 24, 2025 at 10:52 PM
The company I used to work at used tubing on the linear sensors and something akin to air spaced variable capacitors on the angular sensors if that helps. With suitable tubing and suitable dialetric i.e PTFE sleeving/bushings the sensor could be made quite compact, but is scalable
I like the kind of thinking that arrives at this solution to production line ceramics decoration. Must have been fun to prototype to work out materials, pressure, dimensions etc though.
November 24, 2025 at 2:16 PM
I like the kind of thinking that arrives at this solution to production line ceramics decoration. Must have been fun to prototype to work out materials, pressure, dimensions etc though.
Have thought about maybe using a capicitative sensor element instead? Years ago I worked in a company that used this method and if memory serves they were pretty linear.
November 24, 2025 at 1:57 PM
Have thought about maybe using a capicitative sensor element instead? Years ago I worked in a company that used this method and if memory serves they were pretty linear.
I imagine you might have mixed feelings about retiring, but you do now get to spend as much time as possible with the dogs which is pretty cool!
November 24, 2025 at 1:53 PM
I imagine you might have mixed feelings about retiring, but you do now get to spend as much time as possible with the dogs which is pretty cool!
Oddly, here in Croydon we did have some snow around 10.00. Started as sleet but soon turned to large fluffy snow flakes. Hasn't settled but it did snow for around 20 minutes.
November 19, 2025 at 1:11 PM
Oddly, here in Croydon we did have some snow around 10.00. Started as sleet but soon turned to large fluffy snow flakes. Hasn't settled but it did snow for around 20 minutes.
I think that's true, in most modern games the graphics are pretty impressive with the better processors and memory but the actual game play, that's different. When designing games for the older computers programmers had to focus on the game play to attract users rather than fancy graphics
November 15, 2025 at 9:52 PM
I think that's true, in most modern games the graphics are pretty impressive with the better processors and memory but the actual game play, that's different. When designing games for the older computers programmers had to focus on the game play to attract users rather than fancy graphics
Not done any programming for years, but back then it was mainly around satellite tracking programs I tweaked to work on the ZX81 as I was in to the RS type satellites at the time. Somewhat "interesting" at times but it was great fun getting in to the works and getting them to work as I wanted
November 15, 2025 at 8:42 PM
Not done any programming for years, but back then it was mainly around satellite tracking programs I tweaked to work on the ZX81 as I was in to the RS type satellites at the time. Somewhat "interesting" at times but it was great fun getting in to the works and getting them to work as I wanted
How I remember the joys of that particular method. Hours of painstakingly typing in hundreds of lines of code, the "save" experience on the ZX81, the anxious wait for it to run........and then hours of painstakingly looking through hundreds of lines of code for the tiny error causing it to fail😫
November 15, 2025 at 8:30 PM
How I remember the joys of that particular method. Hours of painstakingly typing in hundreds of lines of code, the "save" experience on the ZX81, the anxious wait for it to run........and then hours of painstakingly looking through hundreds of lines of code for the tiny error causing it to fail😫
Replying to posts on my phone and without my reading glasses is a bit like Russian roulette😄
November 10, 2025 at 4:14 PM
Replying to posts on my phone and without my reading glasses is a bit like Russian roulette😄
Been huge changes in the hobby even since I first started both regulatory and in technology. I know some people lament the old days but personally I think we actually have it pretty good right now, certainly for homebrew we have a lot more access to components and info than ever before
November 10, 2025 at 4:11 PM
Been huge changes in the hobby even since I first started both regulatory and in technology. I know some people lament the old days but personally I think we actually have it pretty good right now, certainly for homebrew we have a lot more access to components and info than ever before
TRF set, why do I only see typos after I post!
November 10, 2025 at 4:00 PM
TRF set, why do I only see typos after I post!
Congratulations Dale, compared to some of the people replying I,ve only been licensed 43 years, not that long really. However I did start as a swl back in 1972 when I was 11 when I made my first try set from a HAC kit. Homebrew still my main interest in amateur radio, lots of changes though.
November 10, 2025 at 3:59 PM
Congratulations Dale, compared to some of the people replying I,ve only been licensed 43 years, not that long really. However I did start as a swl back in 1972 when I was 11 when I made my first try set from a HAC kit. Homebrew still my main interest in amateur radio, lots of changes though.
Apparently that was supposed to build character😇
October 29, 2025 at 11:22 PM
Apparently that was supposed to build character😇
Nice to see Flowers getting more recognition, however I think it's worth remembering that the work at Bletchly Park was the result of a very dedicated and talented team of people without which the allies would not have had the huge success they did in breaking Enigma codes
October 27, 2025 at 12:45 PM
Nice to see Flowers getting more recognition, however I think it's worth remembering that the work at Bletchly Park was the result of a very dedicated and talented team of people without which the allies would not have had the huge success they did in breaking Enigma codes
The sound of muesli
October 25, 2025 at 12:53 AM
The sound of muesli
Even reused the tassels.. well done😇
October 23, 2025 at 1:58 AM
Even reused the tassels.. well done😇
Unfortunately, along with constitutions ships have a tendency to sink if too many holes are torn in to them.
October 22, 2025 at 12:14 AM
Unfortunately, along with constitutions ships have a tendency to sink if too many holes are torn in to them.
Or possibly, just ensure one is able observe from a suitably safe distance the resultant Darwin event.
October 9, 2025 at 10:49 PM
Or possibly, just ensure one is able observe from a suitably safe distance the resultant Darwin event.
I know that its not unusual for the owners of these old aircraft to have to source parts that might well not have the sort of traceability one might expect of modern aircraft parts but I would have thought a proper inspection/service before fitting would have been a very good idea.
October 9, 2025 at 10:36 PM
I know that its not unusual for the owners of these old aircraft to have to source parts that might well not have the sort of traceability one might expect of modern aircraft parts but I would have thought a proper inspection/service before fitting would have been a very good idea.
Yes, one of the unarmed photo reconnaissance spitfires. Very very low and very fast, one hell of a brave pilot, considering how well Tirpitz was defended.
October 8, 2025 at 2:31 PM
Yes, one of the unarmed photo reconnaissance spitfires. Very very low and very fast, one hell of a brave pilot, considering how well Tirpitz was defended.
That's some improvement at least, but I was thinking more along the lines of some kind of update kit option to help improve the situation regarding water ingress and resulting damage to the many rotators in service.
October 7, 2025 at 2:17 PM
That's some improvement at least, but I was thinking more along the lines of some kind of update kit option to help improve the situation regarding water ingress and resulting damage to the many rotators in service.
Rather surprised he had the time to do his day job to be honest, not going to look to good on his CV though, going to be a pretty awkward question during job interviews😇
October 7, 2025 at 2:06 PM
Rather surprised he had the time to do his day job to be honest, not going to look to good on his CV though, going to be a pretty awkward question during job interviews😇