Advance UHF Millivoltmeter VM 79

[Skywave]

Slow down George. It say 'Turning' not 'Tuning'. I was referring to the Brass parts that might need to be made on the Lathe.
Why do you think the Frequency limit is 500MHz young Al? I haven't come across that figure anywhere, but I'm prepared to be convinced.
Alan

Hi Alan,
Err, sorry about that. I'm having a bad day - you know the way things are here.

500 MHz? Like others here, I did do a 'Net search. I'm sure that I came upon that figure whilst doing that - but found nothing else that would help you.

However, perhaps you'll forgive me for my sins if I tell you that I have subsequently discovered that in the August 1970 edition of Practical Electronics, G.W. Smith (remember them?) had an advert for the Advance VM79 UHF milli-voltmeter.

The ad. stated:

VM79, UHF MILLIVOLT METER: new, unused.
100 Kc/s to 1,000 Mc/s.
a.c. 10 mV to 3V.
d.c. 10 V to 3 V.
Current 1 µA to 0-3 mA.
Resistance 1 ohm to 10 megohm.
£1125.0.0.

Serious money eh?

Al.