When I ordered my 8-inch Portaball I decided to skip the electrical packages, partly for economic reasons, partly because I didn't think I would need them. However, I sometimes get problems with dew on the secondary, and very often on the reflex finder. Is there a simple way to get around this problem (without having access to a household power supply)? A battery-driven hairdryer?
Dew
Started by Inge_S, 11/14/2003 02:36PM
Posted 11/14/2003 02:36PM
Opening Post
Posted 11/14/2003 10:59PM
#2
Nothing a couple resistors won't fix. If you're already bringing a battery with you, then why not rig up the scope with a simple heating system?
When you say "reflex finder" do you mean Telrad? If so, there is a product specifically made to snap onto a Telrad and heat it. I haven't tried it, but it's not rocket science so I doubt it's bad. With the Telrad, I imagine you could easily make your own heater and even use the AA batteries inside. They'd run out more quickly, but you can get high capacity NiMH rechargables.
When you say "reflex finder" do you mean Telrad? If so, there is a product specifically made to snap onto a Telrad and heat it. I haven't tried it, but it's not rocket science so I doubt it's bad. With the Telrad, I imagine you could easily make your own heater and even use the AA batteries inside. They'd run out more quickly, but you can get high capacity NiMH rechargables.
Funding Member
