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Could you please sketch it out, as I am not following it. Dave

You raise the issue here of how to generate a signal with very low source resistance. How about this idea. Consider a signal source feeding a resistive divider consisting of Rs (source) and Rl

Well Jeffrey, you bring up an interesting point. I bought a 160-A from the USA a few days ago. https://www.ebay.com/itm/185508135243 The shipping was a *suspiciously *low $21.72. It's going via the

wrote: Do you know of a model number(s)? My search with Google didn’t bring up anything useful. There are plenty of LCR meters, but unless significantly different from my 4284A and 4285A, they are

[email protected]> wrote: Thank you. That is the best 260-A manual I have seen, although I have seen a “manual” that covered a few of the Boonton models. I always felt that there should be one

I have a real Boonton Q meter.? Yes it was made with tubes (valves).? But it was a truly outstanding meter in its day.? David, I would consider giving it to you for trade for something else small

Oops again. I meant 74HC4059 (/10000 capable), not 74HC40102(/100 capable). Also note that the Kb control inputs on the counters can be used with a small amount of logic to initialize the counters for

On? Thu, 4 Aug 2022 9:19? Dr. David Kirkby wrote: "A step-down transformer seems the most obvious way...? I have not yet looked at the HP 4343A meter service manual. That will probably give me some

wrote:

Have a look at the manual of the Rhode & Schwartz? QMeter

If you have not already done so, you may want to read through the Boonton 260 Q Meter manual. It is a wealth of information and provides a lot of insight on where errors creep into measurements. The

Oops, It's too early in the morning - Upon proofreading of my posted message, I find that I have mistakenly substituted 10 Hz for 0.1Hz throughout. Sorry, Stephen Menasian

Since I don;t have a VNA and constructing one in less than a couple of months is a major undertaking, I would probably take the following approach, using components in my junk box. 1) Construct 2

Since I don't have a VNA and constructing one would take more htan a couple of weeks, I'd probably take the following approach using components in my current inventory: 1

I think the best method for measuring loaded and unloaded Q and at the same time the coupling factor is by using the resonance circle that is created on the smith chart of VNA. Read the article by

On Thu, Aug 4, 2022 at 02:14 AM, Kenneth Greenough wrote: > > Re' a Q meter. > This is only a thought idea, not tested hi. > Have a small enclosure with sockets on opposite sides. each socket has a >

I see another problem that I was unaware of. There are two definitions of Q I am aware of 1) Q = 2 P Energy_stored_per_cycle / Energy _dissipated_per_cycle 2) Q = fr (f2 - f1) where fr is the resonant

Re' a Q meter. This is only a thought idea, not tested hi. Have a small enclosure with sockets on opposite sides. each socket has a single turn loop attached with sufficient distance between the two

I am looking at the possibility of making a Q meter for the frequency range 1.5 MHz to 150 MHz. One common way to do this is to inject a voltage from a LOW impedance source, into a series tuned

This is the method used for the VNWA frequency meter. Also for generation Allan deviations on the fly. Kind regards Kurt Fra: [email protected]