.
Alan
G3NYK
From: Hal Murray
To: Discussion of precise time and frequency measurement
Cc: hmur...@megapathdsl.net
Sent: Monday, 21 July 2014, 4:58
Subject: Re: [time-nuts] Diodes as temperature sensors
alw.k...@gmail.com said:
> Apparently, the forw
alw.k...@gmail.com said:
> Apparently, the forward biased silicon diode was temperature sensitive
> enough that a small D.C. amplifier could drive a meter to read-out with
> reasonable accuracy. Well, maybe not accurate by Time-nut standards but
> close enough for its intended purpose.
I think t
On Sun, Jul 20, 2014 at 7:07 PM, Al Wolfe wrote:
>
> Seems like there are IC's that contain two diodes, one as a sensor and one
> as a heater. Part numbers escape me now.
You might mean the TMP36 family of sensors. They use diodes and must be
the most common sensor out there. They are cheap
Back in the 1970's I was tasked with coming up with a thermometer that could
be read in the studio of an AM radio station. I bought a Heathkit
indoor-outdoor unit. It worked great at night but was all over the place in
the daytime when the AM transmitter was on the air. Turned out the sensor
wa
