20-09-2024, 05:54 PM
Hi Sam,
That's great news - thanks for trying that and letting know the outcome
I've moved the posts about flicker and monitors, etc, to a new thread. It was perhaps my fault for taking it off-topic.
https://golbornevintageradio.co.uk/forum...p?tid=9339
But in terms of fitting LEDs to your set, it (the flicker issue) is something to consider. I don't know what bulbs the RF110 uses because I don't think I've ever looked inside mine, but I do know that the RF111 uses MES. Obviously a like-for-like replacement is easiest, assuming the light emerges where you need it to. Some scales are lit by the edge of the lamp, so an LED replacement might not be suitable, in which case some mechanical and electrical work is needed to fit a standard 3mm or 5mm LED in place. Again, I don't know the mechanical arrangements inside the RF110. I'd also take the supply from the DC side, to side-step the flicker issue. But some might prefer to not modify things, even slightly. I understand that.
If I remember which part of the attic my set is hidden, I'll take a look. I'm curious now...
This has reminded me of an almost on-topic tale. My step-dad had an RF111 that didn't work. He had a little electrical knowledge, and was good at hands-on stuff, but had managed to convince himself that the reason the set was dead was because the failed 7V bulbs had been replaced with 6V lamps! Naturally, he wasn't going to listen to 11-year-old me telling him that didn't make sense. We had the schematic - it was folded up inside - so I could explain it all, but still, he was never going to believe me!
A few years later I decided to take a look, and quickly found that the broken solder joints between the main PCB and the vertical PCB inside the aluminium can. The dial lamps were mounted on the top of this can, on a length of steel wire shaped to accept the plastic MES bulb holders. 30 seconds with the soldering iron, and I was able to proudly demonstrate the now-working radio.
I explained everything, and in his usual "I'm never wrong" fashion, he simply said "See - told you it was the bulbs!". Of course I said "but you said it was because the replacements were 6V, not 7V", but there was no getting through. No longer my step dad - that's been the case for 30+ years now - but we did get on a bit better after the radio incident, when he eventually got used to the idea that I'd overtaken him in this subject area. In fairness, I was grateful for what I was able to learn from him.
Happy days,
Mark
That's great news - thanks for trying that and letting know the outcome
I've moved the posts about flicker and monitors, etc, to a new thread. It was perhaps my fault for taking it off-topic.
https://golbornevintageradio.co.uk/forum...p?tid=9339
But in terms of fitting LEDs to your set, it (the flicker issue) is something to consider. I don't know what bulbs the RF110 uses because I don't think I've ever looked inside mine, but I do know that the RF111 uses MES. Obviously a like-for-like replacement is easiest, assuming the light emerges where you need it to. Some scales are lit by the edge of the lamp, so an LED replacement might not be suitable, in which case some mechanical and electrical work is needed to fit a standard 3mm or 5mm LED in place. Again, I don't know the mechanical arrangements inside the RF110. I'd also take the supply from the DC side, to side-step the flicker issue. But some might prefer to not modify things, even slightly. I understand that.
If I remember which part of the attic my set is hidden, I'll take a look. I'm curious now...
This has reminded me of an almost on-topic tale. My step-dad had an RF111 that didn't work. He had a little electrical knowledge, and was good at hands-on stuff, but had managed to convince himself that the reason the set was dead was because the failed 7V bulbs had been replaced with 6V lamps! Naturally, he wasn't going to listen to 11-year-old me telling him that didn't make sense. We had the schematic - it was folded up inside - so I could explain it all, but still, he was never going to believe me!
A few years later I decided to take a look, and quickly found that the broken solder joints between the main PCB and the vertical PCB inside the aluminium can. The dial lamps were mounted on the top of this can, on a length of steel wire shaped to accept the plastic MES bulb holders. 30 seconds with the soldering iron, and I was able to proudly demonstrate the now-working radio.
I explained everything, and in his usual "I'm never wrong" fashion, he simply said "See - told you it was the bulbs!". Of course I said "but you said it was because the replacements were 6V, not 7V", but there was no getting through. No longer my step dad - that's been the case for 30+ years now - but we did get on a bit better after the radio incident, when he eventually got used to the idea that I'd overtaken him in this subject area. In fairness, I was grateful for what I was able to learn from him.
Happy days,
Mark
