Jeff Duntemann's Technology Projects 
1/2000: The Tinderbox had an outboard 275VDC supply. I began using banana patch cables for power runs in projects about this time, because it made it easier to patch in meters for monitoring voltage and current.
1/2000: The Tinderbox had an outboard 275VDC supply. I began using banana patch cables for power runs in projects about this time, because it made it easier to patch in meters for monitoring voltage and current.
Viewed: 5870 times.

12/2000: A very simple 6T9 Compactron 2-stage audio amp, on a Dremel-hacked PC board. The whole project took a little over an hour.
12/2000: A very simple 6T9 Compactron 2-stage audio amp, on a Dremel-hacked PC board. The whole project took a little over an hour.
Viewed: 7309 times.

1/2001: Turning a new 1.75" bronze declination shaft for the 10" scope on my lathe.
1/2001: Turning a new 1.75" bronze declination shaft for the 10" scope on my lathe.
Viewed: 5721 times.

5/2001: Grinding the tang of the equatorial head I built from scrap iron at Lane Tech in 1968.
5/2001: Grinding the tang of the equatorial head I built from scrap iron at Lane Tech in 1968.
Viewed: 7953 times.

5/2001: The finished concrete pier for my 10" scope, in AZ. Pete Albrecht machined the flat face of the vertical tang on his shaper.
5/2001: The finished concrete pier for my 10" scope, in AZ. Pete Albrecht machined the flat face of the vertical tang on his shaper.
Viewed: 5492 times.

9/2002: A Wi-Fi bridge with parabolic mesh antenna. The ammo box enclosed a D-Link access point and power-over-ethernet splitter. I bridged a link just under a mile long with two units like this.
9/2002: A Wi-Fi bridge with parabolic mesh antenna. The ammo box enclosed a D-Link access point and power-over-ethernet splitter. I bridged a link just under a mile long with two units like this.
Viewed: 5761 times.

9/2002: Inside the ammo box Wi-Fi bridge unit, showing the AP and the power splitter.
9/2002: Inside the ammo box Wi-Fi bridge unit, showing the AP and the power splitter.
Viewed: 5770 times.

10/2002: The Tin Can Bandwidth Expander, a Wi-Fi directional antenna made from a Hunt's spaghetti sauce can and a goose neck lamp base
10/2002: The Tin Can Bandwidth Expander, a Wi-Fi directional antenna made from a Hunt's spaghetti sauce can and a goose neck lamp base
Viewed: 5758 times.

10/2002: Tin Can Bandwidth Expander in use, finessing a dead spot in my living room in AZ.
10/2002: Tin Can Bandwidth Expander in use, finessing a dead spot in my living room in AZ.
Viewed: 5736 times.

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