Secondary Mirror Heater for Newtonian Telescopes - PCBA Only

Secondary Mirror Heater

Have you noticed how the dew and ice seem to settle on your secondary mirror, causeing loss of clarity and a huge reduction in the numbers of stars visible? Now you can kiss the dew and ice goodbye with this simple to fit heater. Everything you need to fit it is in the package, just plug the RCA/phono plug into your favourite 12V dew heater controller (or even directly into 12V, but this will probably get hotter than you want) and you'll suffer no more.

It is recommended that you use a dew heater controller such as our 2-channel or 4-channel products

NOTE: These are made to order so there may be a delay of 2 or 3 days before shipping. Please let us know if your order is urgent,

"At the end of the night, everything was dripping wet (including the laptop!), but the secondary mirror was perfectly dry!! So in my book, that is a resounding success!" - Steve Oates, astrophotographer

We have the following sizes available.

• 70 x 50mm elliptical mirror as found in 8" telescopes such as Skywatcher 200P and Celestron 8-N. Also fits the Skywatcher/Orion 150P
  
• 89 x 63 mirror, specifically for Skywatcher 6" Quattro
• 100 x 70 mm elliptical mirror as found in 12" Newtonians
• 114 x 80 mm elliptical mirror for 10" Quattro and similar
• 141 x 100 mm elliptical mirror for 12" Quattro and similar
  

IMPORTANT NOTE: You can download from here actual size PDF outlines of these heaters and check them against your mirrors. Please scale the printout if necessary, to ensure that the 100mm line is actually 100mm when printed.

Note: We are now only selling the PCBAs with a short JST cable. You will need to wire this up and fix it to the back of the secondary mirror yourself.

1. Secondary heater PCBA
   
2. 15cm JST cable with bare wire ends for you to connect to.
   

Specification:

* Current and power calculated at 12V constant