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Re: 5086-7337 *Yig Oscillator issue*

 

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Hi All Ok about the acronyms?

?

We had RPG? Rotary Pulse Generator ?apparently this is the HMI control knob ??Human machine interface (a Knob ) or as I know it ?RPE ?rotary pulse encoder

RUD? new one for me ?but ok

?

Regarding the voltage on a Yig basically providing the main votes are on it they normally work?

but reference to the Plug in Maine output mudded the waters? Hens talking about setting up the multiplier yig assembly ?

but as it was a parts Kit? that there could have been an issue with the Yig drive voltage as no output in the range 2-6 Ghz

?

Roberto

I do not know your outlay but I would strongly suggest you do not butcher it ( pull it apart ) As in the long term you will regret it

Ar you still running the 8350 frame of several power supplies as that would be my number one repair and go shopping for another plug in

Just a bit of information I have a 8350 that has given big problems as I didn¡¯t realise the socket interface between plug in and 8350 was corroded on the 8350

Best of luck

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?

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From: [email protected] [mailto:[email protected]] On Behalf Of Tom Lee
Sent: 14 March 2023 17:22
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] 5086-7337 *Yig Oscillator issue*

?

Or rocket-propelled grenade, in another profession.

?

In certain circumstances both can undergo rapid uncontrolled disassembly (RUD).

?

Tom

Sent from my iThing; please forgive the typos and brevity



On Mar 14, 2023, at 10:07, Roberto Vegliach <roberto.vegliach@...> wrote:

?

Dear, RPG stand for "Rotary Pulse Generator".

This is the endless knob on front panel for changing parameters.

Regards.

?

Il Mar 14 Mar 2023, 17:57 Bruce <bruce@...> ha scritto:

Don -

Thanks - I have not played much with the 8350 plug YIGS (mostly 834X?
stuff) - good information to know.

I do find it a bit surprising though.? Reasoning is as follows,?
correct me if I'm wrong:
1) Frequency is primarily determined by main coil current
2) Remaining voltages supply the oscillator and amp (if there is one)?
- they do not vary with frequency (true ??)
3) The linearization is primarily a shaping function on the main coil current.

So I would expect that if the main coil current were within the?
expected limits and the other voltages were correct, the YIG would?
have output.? Thoughts??

Cheers and thanks for the insight.

Bruce



Cheers!

Bruce

Quoting "Don Bitters via " <donbitters=[email protected]>:

> Absolutely yes! I have been there on this issue. Even a brand new?
> one from the factory may not give an output, or a very low output?
> until it is aligned with the proper endpoint drive voltages.
>
> Don Bitters
>
>
>







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