开云体育

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of D. Scott MacKenzie via groups.io
Sent: Tuesday, July 26, 2022 9:47 PM
To: [email protected]
Subject: Re: [nanovna-users] Antennas

I also have some 8' Pickett and K&E instructional sliderules and a dietzen transparent one that goes on an overhead projector - old school all the way
,:)

On Tue, Jul 26, 2022, 21:23 Zack Widup <w9sz.zack@...> wrote:

I have a large K&E slide rule that must have 26 or so scales on it. I
also have a 6 inch Pickett that we used to call the "Pocket Pickett"
:-)

Zack W9SZ

On Tue, Jul 26, 2022 at 6:22 PM Stephen W9SK <stephen@...> wrote:

I have two different Post slide rules from back in the day, but my
most valued one is specifically designed for electronics formula use
by Picket (reactance, resonance, resistance, etc).

Stephen W9SK


-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of

KENT

BRITAIN
Sent: Tuesday, July 26, 2022 4:04 PM
To: [email protected]
Subject: Re: [nanovna-users] Antennas

One must wonder if you ever owned a slide rule? hihi

(Still own my eye saving yellow one by Picket)

I recently saw an article for a 20 Meter beam with dimensions in
1/10,000ths of an inch.
Someone needs to slap that lad up side of the head with a K&E slide
rule!Guess he also needed to establish the exact temp the Aluminum
should be at for that measurement.
"Why be approximately correct when you can be precisely wrong!" Tom

Clark

W3IWI


For what it's worth, at last count I own 8 Network Analyzers. 3
Nano's

on

various work benches and the big one is a 40 GHz HP 8510. That's
about

100

kg of analyzer.
On the 3 Nano's I have, one big source of uncertainty are those 50 Ohm
loads. I had those loads on the 8510 and they were pretty bad above a

few

Hundred MHz. If you can, I suggest getting a higher quality 50 Ohm load
for your calibrations. The short and open seemed fine. Kent






On Tuesday, July 26, 2022 at 05:00:08 PM CDT, G8DQX list <
list@...> wrote:

And forgets to say whether these are Imperial Gallons (defined as
4.54609l) or Queen Anne (as used in the USA) gallons (defined as 231

cubic

inches-whatever an inch might have been at the time, though today
the US and UK agree that an inch is 25.4 mm by definition-which is
3.785411784l.) [Thus the US gallon is about 83.27% of a UK gallon.]

Yours terribly pedantically,

Robin, G8DQX