That may be a standard steel shape that they just buy off the shelf.? Like extrusion profiles, only machined.
Aluminium Profile from Matara UK | In-House Machining
*Try this for time and earth 360°*
*& try this for time at different Latitudes*
One hour is 1020 miles
how about one minute
At 0° = 17 miles in minute
at 35° = 14 miles in minute
at 65° = 7.2
Here few more photos off the internet.
Thd first photos above is one have.
On mine one bolt , I am bolting plate? down though the plate to cross slide .
This looks like the purchased
If notice the
Looking Building a pocket Sextant.
3 to 4" size
Using aluminum, UHMW & brass.
With research found most was accurate to 30 to 10 minutes.
Time keeping is one of limiting factors
Using a sprint level
/g/minilathe/files/5%29Charts_&_Tables
For some reason #8 did not downloading to my phone later today turn a real computer and get done. It is on hardness testing
I like leaves no
Switch Mode Power Supplies have at minimum 20 mS hold-up.? In reality they have more, but not necessarily a lot more.
I built a factory control system for the DOE way back when and used an
In 1986 I was attending an Army Satellite terminal training class? at Ft. Gordon, GA. Had a bad storm that night that shut down our terminal. I'd been writing a letter on the Heathkit. H89 computer
Yep. Higher the frequency the lighter the wiring can be. Back in the day, aircraft electronics were run at 400hz, instead of the 60hz we use in households and industry. Switching would save a lot on
It's what I mentioned about modern power supplies, an inverter welder is a SMPS (Switched Mode Power Supply).? It converts the mains power to DC.? Then Switches that at a high frequency.? This
