So here you have it. Kari, oh2gqc, has finally gone cyber…
How hard can it be?
Well, the reflex-tube’s diameter is larger than it’s hole in the cabinet.
So some filing…
…and sandpapering ( is that a word ? ) …
…was required for a snug fit.
Next up: Putting it all together.
Today I have been productive. All four filters are now glued and soldered together.
Each filter was tested as well:
The crossover filter now looks much like some gastly mutated spider.
All these wires are required because of the mid- and higrange control switches.
I really should have designed a prited circuit board for the filter…
Ugly as ig may seem, it does work however.
Here’s a clip taken when testing the filter.
Here is the first crossover filter assembled on a piece of cardboard with ample amount of hotglue.
Initial test of filter usign a 1,5 volt battery as signal source.
Now this is the difficult part. How to drill holes straight and properly centered?
Trying to accompish this with this weird looking rig. ( Handcraft is definetly not where I excel … )
Not too much going on with amateur radio at the moment here @oh2gqc.
Instead, I started to build new HiFi speakers.
These are very compact but nice sounding
speakers – when finished, that is.
Here’s the original article from Hifimaailma magazine ( in Finnish )
Speaker cabinets are made in carpenter’s workshop http://kuviopuu.fi/