Re: Type 502 scope : missing air filter, what gives ?!
When using Foam filters in the 500 Series put some hardware cloth or
Metal mesh between the foam and the fan to keep the foam from being
eaten by the fan.Some on the outside will help keep the foam in place.
Leon Robinson K5JLR
Political Correctness is a Political Disease.
From: Bruce Lane <@kc7gr>
Sent: Monday, November 12, 2018 12:42 PM
Subject: Re: [TekScopes] Type 502 scope : missing air filter, what gives ?!
Many early air filters were made from a type of plastic foam which
degraded and decomposed over time, essentially turning into (very messy)
powder. The 502 is most certainly from that era.
The good news: Replacement material is easily obtainable. Check in the
plumbing/heating section of your preferred hardware or home improvement
store for open-cell filter foam (most often used in air conditioners).
It's cheap, and can be easily cut and shaped to the required dimensions.
Keep the peace(es).
On 12-Nov-18 10:37, Vincent Trouilliez wrote:
Bruce Lane, ARS KC7GR
kyrrin (at) bluefeathertech dot com
"Quando Omni Flunkus Moritati" (Red Green)