wookie1965 Posted September 11, 2022 Share Posted September 11, 2022 Can any body tell me where I can purchase a 5v at least 50cm long dew band to fit my 5" scope please. Link to comment Share on other sites More sharing options...
Guest Posted September 11, 2022 Share Posted September 11, 2022 https://www.firstlightoptics.com/dew-prevention/lynx-astro-50cm-dew-heater-strap-for-5-telescopes.html Link to comment Share on other sites More sharing options...
wookie1965 Posted September 11, 2022 Author Share Posted September 11, 2022 1 minute ago, Mike Q said: https://www.firstlightoptics.com/dew-prevention/lynx-astro-50cm-dew-heater-strap-for-5-telescopes.html They are 12v Mike I want 5v (USB) so I can use a power bank to power them. Link to comment Share on other sites More sharing options...
Guest Posted September 11, 2022 Share Posted September 11, 2022 Just now, wookie1965 said: They are 12v Mike I want 5v (USB) so I can use a power bank to power them. Yeah i just noticed that . My bad Link to comment Share on other sites More sharing options...
teoria_del_big_bang Posted September 11, 2022 Share Posted September 11, 2022 50cm is long for a 5V heater band which I guess is why you are struggling. Generally I have seen them up to 30cm and even the odd 40cm, I thought I havd found one HERE on Amazon but I read the feedback which says it was only 43cm. I know it might be expensive but you could by two 25 cm bands as they should just velcro together as one and then use two USB ports (not ideal I know). If not in a hurry you can get them from China for around £15 each rather than the £30+ you would normally pay. Steve Link to comment Share on other sites More sharing options...
Guest Posted September 11, 2022 Share Posted September 11, 2022 See your mailbox. I found one on amazon that might do you Link to comment Share on other sites More sharing options...
teoria_del_big_bang Posted September 11, 2022 Share Posted September 11, 2022 1 minute ago, Mike Q said: See your mailbox. I found one on amazon that might do you Not this one is it ? I only ask because feedback suggests it is only 43cm. Link to comment Share on other sites More sharing options...
Guest Posted September 11, 2022 Share Posted September 11, 2022 https://www.amazon.com/Defogging-Condensation-Prevention-Universal-Telescopes/dp/B08LGN222F Link to comment Share on other sites More sharing options...
Guest Posted September 11, 2022 Share Posted September 11, 2022 4 minutes ago, teoria_del_big_bang said: Not this one is it ? I only ask because feedback suggests it is only 43cm. The below is 16.9 inchs long. That should make it, or maybe i neee more coffee before doing math Link to comment Share on other sites More sharing options...
Neil H Posted September 11, 2022 Share Posted September 11, 2022 Paul W and W Astro do them up to 100cm https://www.widescreen-centre.co.uk/ww-astro-dew-heaters.html Link to comment Share on other sites More sharing options...
wookie1965 Posted September 11, 2022 Author Share Posted September 11, 2022 5 minutes ago, Neil H said: Paul W and W Astro do them up to 100cm https://www.widescreen-centre.co.uk/ww-astro-dew-heaters.html They are all 12v I have already got a 12v one but dont want trailing cables I want to be able to wrap the cable around the scope and plug it into my pawer pack. Link to comment Share on other sites More sharing options...
Neil H Posted September 11, 2022 Share Posted September 11, 2022 But they do a usb lead to fit it I use one on my scope off a power pack and it's never dewed up , you sent me the link a long time back Link to comment Share on other sites More sharing options...
Pixies Posted September 11, 2022 Share Posted September 11, 2022 Hey @wookie1965 - have a look at this: https://dewheater.com/?product=usb-power-supply-cable Link to comment Share on other sites More sharing options...
Neil H Posted September 11, 2022 Share Posted September 11, 2022 https://www.widescreen-centre.co.uk/ww-usb-usb-rca-power-converter-for-dew-heaters.html Link to comment Share on other sites More sharing options...
scotty38 Posted September 11, 2022 Share Posted September 11, 2022 Coowoo do them on Amazon, I've had them and they work just fine but only 450mm.... Link to comment Share on other sites More sharing options...
wookie1965 Posted September 11, 2022 Author Share Posted September 11, 2022 13 minutes ago, scotty38 said: Coowoo do them on Amazon, I've had them and they work just fine but only 450mm.... Yes 45cm is too short unfortunately. Link to comment Share on other sites More sharing options...
wookie1965 Posted September 11, 2022 Author Share Posted September 11, 2022 15 minutes ago, Neil H said: https://www.widescreen-centre.co.uk/ww-usb-usb-rca-power-converter-for-dew-heaters.html Sent for one of these thanks for the link brilliant with postage £13 Link to comment Share on other sites More sharing options...
Varavall Posted September 11, 2022 Share Posted September 11, 2022 1 hour ago, wookie1965 said: Can any body tell me where I can purchase a 5v at least 50cm I was wondering if a piece of velcro strip could be used to compete the circle using the product here https://www.amazon.co.uk/Temperature-Regulator-Universal-Telescopes-Eyepieces/dp/B08LGRVF9C giving you the 50cm needed. I have one of these and do not use the regulator as mine would cut out after a few hours and needed to be reset, but without the regulator it gets nice and warm and I have never had any dew issues on my 80mm scope, so maybe a solution to heat a larger aperture. If you are Amazon Prime you can return it free of charge if no good. Adrian 1 Link to comment Share on other sites More sharing options...
wookie1965 Posted September 11, 2022 Author Share Posted September 11, 2022 22 minutes ago, Varavall said: I was wondering if a piece of velcro strip could be used to compete the circle using the product here https://www.amazon.co.uk/Temperature-Regulator-Universal-Telescopes-Eyepieces/dp/B08LGRVF9C giving you the 50cm needed. I have one of these and do not use the regulator as mine would cut out after a few hours and needed to be reset, but without the regulator it gets nice and warm and I have never had any dew issues on my 80mm scope, so maybe a solution to heat a larger aperture. If you are Amazon Prime you can return it free of charge if no good. Adrian That is a good idea if I need another one I could do this I use two on my 4" so if I have to use two on the 5" this would be a cheaper option and because its an extra one I wouldn't need it to go all the way around so thanks for that. Link to comment Share on other sites More sharing options...
Clarkey Posted September 11, 2022 Share Posted September 11, 2022 FWIW I have used undersized dew bands on my 120mm refractor. Even though it only went 4/5 of the way round the dew shield it was fine. The heat from the dew band will convect through the metal and glass. 1 Link to comment Share on other sites More sharing options...
wookie1965 Posted October 2, 2022 Author Share Posted October 2, 2022 On 11/09/2022 at 14:03, teoria_del_big_bang said: Not this one is it ? I only ask because feedback suggests it is only 43cm. Yes it was the same one different supplier the 52cm is the cable length rather confusing. 1 Link to comment Share on other sites More sharing options...
dnl Posted October 2, 2022 Share Posted October 2, 2022 https://www.amazon.co.uk/Heater-Temperature-Regulator-Astronomy-Telescope/dp/B08LG4B41T/ref=asc_df_B08LG4B41T/?tag=googshopuk-21&linkCode=df0&hvadid=463264511915&hvpos=&hvnetw=g&hvrand=11443379532803764471&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=1007064&hvtargid=pla-1149315429486&psc=1 Just got one of these from Amazon there a couple of quid more but the heated part is perfect on a 120 ed frac then the stretchy velcro goes well beyond . Thought it was faulty at first as it only worked on low and medium but looked like this was down to the power supply used as when plugged into a higher amp power supply all good. Link to comment Share on other sites More sharing options...
wookie1965 Posted October 2, 2022 Author Share Posted October 2, 2022 40 minutes ago, dnl said: https://www.amazon.co.uk/Heater-Temperature-Regulator-Astronomy-Telescope/dp/B08LG4B41T/ref=asc_df_B08LG4B41T/?tag=googshopuk-21&linkCode=df0&hvadid=463264511915&hvpos=&hvnetw=g&hvrand=11443379532803764471&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=1007064&hvtargid=pla-1149315429486&psc=1 Just got one of these from Amazon there a couple of quid more but the heated part is perfect on a 120 ed frac then the stretchy velcro goes well beyond . Thought it was faulty at first as it only worked on low and medium but looked like this was down to the power supply used as when plugged into a higher amp power supply all good. Yes mine only works on low and medium if you go higher just knocks off. Link to comment Share on other sites More sharing options...
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