Dew Heater on Telrad

[Alan White]

Just finished fitting a heater to my Telrad, love the Telrad.


It is a bought in circuit board from Dew Control, self adhesive but you solder on wires.

Drilled a small hole in Telrad to route wires to a plug.

All my heaters are on short leads that I then connect to identical longer leads,
this makes lead issues in the field simple to fix as all the leads are the same.
This makes the unit neat when used without the heater.

All run from 12v from mains unit, battery (12v) or via a USB Power bank
and step up lead from W&W Astro.

 

 

Should add it works very well, did a trial before cutting the hole and its excellent,
far less fraught with damage danger from a resistor fitting yourself.
It was not expensive and is very neat.

 

 

 

Edited July 31, 2019 by Alan White
typos of course