Yeah, there were some surplus Motorola repeater rack meters floating around eBay for a while that were almost the correct Jewell version but were more sensitive. I bought one, added an external shunt, and rescued a WV4. It's possible that someone got ahold of one of those and didn't understand the concept.
73
-Jim
NU0C
On Sun, 21 Jan 2024 09:28:41 -0800
"jerry-KF6VB" <jerry@...> wrote:
On 2024-01-21 09:21, mike bryce wrote:
I¡¯m wondering if at one time someone swapped out the meter for
something much more sensitive instead of the stated 200uA one Drake
used.
*** I can easily imagine somebody scoring a nice meter and just sticking
it in.
Once upon a time...
...As a preteen in San Francisco, I attended an after school electronics
program known as "Lux Labs". We had lectures, and we built projects.
One
of our first projects was a crystal radio. The program provided us with
all
the parts, including a cheap headset.
Down on Radio Row, I scored a really nice Western Electric headset.
For some reason, my crystal radio never worked. The instructor
checked all my
wiring, pulled on my solder joints - all OK. But not a peep out of it.
Some twenty years later, I woke up one morning, sat up in bed, and
said "600 ohms!"
...which was surely the input impedance of that nice WE headset. Way
too low for
a crystal radio.
- Jerry, KF6VB
--
73
-Jim
NU0C
Jim Shorney