Hi,Sorry if I caused confusion by calling the SCR/BC221 a wavemeter. Clearly
it's not in the wider usage of the term, and the manual and front panel call it
a frequency meter. However the similar British device was called a wavemeter
"Wavemeter Class D"
http://www.vmarsmanuals.co.uk/archive/724_Wavemeter_Class_D_No2_Working_Instructions.pdfSo
here in the UK the 221 was often also called a wavemeter. Classic wavemeters
were also available for example the Marconi TF975.
Robert G8RPI.
From: Bob Camp <[email protected]>
To: Discussion of precise time and frequency measurement <[email protected]>
Sent: Monday, 13 February 2017, 23:46
Subject: Re: [time-nuts] Vintage Frequency Measurement
Hi
With a VFO running, you have a heterodyne frequency meter. That is (at least to
me)
a very different device than an absorption wave meter. I know way to put power
into
a BC-221 and use it as an absorption device.
I’m not in any way saying that the LM or the 221 are less useful. They are
still to this day
great little boxes. The just aren’t (by my understanding) wave meters. That
term describes
a different device that works a different way.
Bob
> On Feb 13, 2017, at 5:52 PM, John Miles <[email protected]> wrote:
>
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