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Hughes IMPATT

 

I realise this is Not HP but it is related

Can anyone help with any IMPATT parts or information as

I am resurrecting a few Hughes IMPATT oscillators to work with the HP 8620 sweeper

?

Also looking for WR08 parts and mine flange parts

?

Regards Paul South coast UK
 

I recall seeing some HP8620 plug-ins over the years, that were labeled as Hughes, but none contained an oscillator as far as I could see. They had connectors on the front for control/drive cables that went to various external waveguide-mounted oscillators, which were presumably separated from the plug-ins and long gone.
?
A quick look online for "hp8620 hughes" showed an example on ebay:
?
?
I don't know who actually built them but they look like sort of commercial, low volume custom units, including the plug-in and the scale. I've never knowingly seen any of the oscillators. You can see on the back of the plug-in a line power in and out, which probably ran the power supply for the oscillator via the RF ON/OFF switch. You can also see that they were built from parts or sacrificed plug-ins, not custom made by HP - they would have looked much nicer if so.
?
Ed
?
?
 

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Hi Ed

?

Thank you for your input? I am familiar with the older version that you provided a link to and the more modern version that includes a lineariser to try to straighten out the not ?linear frequency response of the IMPATT

A lot of people think that the oscillator is within the sweeper as it has the frequency display not so it is an external wave guide unit usually on a 3 leg stand? the Hughes catalog is in the Files on this sight as I put it their

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So I am still looking for more Hughes hardware and in depth knowledge? ?

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From: [email protected] [mailto:[email protected]] On Behalf Of ed breya
Sent: 21 September 2024 02:17
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Hughes IMPATT

?

I recall seeing some HP8620 plug-ins over the years, that were labeled as Hughes, but none contained an oscillator as far as I could see. They had connectors on the front for control/drive cables that went to various external waveguide-mounted oscillators, which were presumably separated from the plug-ins and long gone.

?

A quick look online for "hp8620 hughes" showed an example on ebay:

?

?

I don't know who actually built them but they look like sort of commercial, low volume custom units, including the plug-in and the scale. I've never knowingly seen any of the oscillators. You can see on the back of the plug-in a line power in and out, which probably ran the power supply for the oscillator via the RF ON/OFF switch. You can also see that they were built from parts or sacrificed plug-ins, not custom made by HP - they would have looked much nicer if so.

?

Ed

?

?
 

Hello,
?
We can see a full system here :
?
https://www.ebay.com/itm/235000009591
?
Best regards
Eric
 

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Am 21.09.2024 um 04:32 schrieb f1ghb via groups.io:

Hello,
?
We can see a full system here :
?
?
Best regards
Eric

Hughes mmWave IMPATT_Page_1.jpg
Hughes mmWave IMPATT_Page_2.jpg

 

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Am 21.09.2024 um 01:17 schrieb ed breya:

I recall seeing some HP8620 plug-ins over the years, that were labeled as Hughes, but none contained an oscillator as far as I could see. They had connectors on the front for control/drive cables that went to various external waveguide-mounted oscillators, which were presumably separated from the plug-ins and long gone.
?
A quick look online for "hp8620 hughes" showed an example on ebay:
?
?
I don't know who actually built them but they look like sort of commercial, low volume custom units, including the plug-in and the scale. I've never knowingly seen any of the oscillators. You can see on the back of the plug-in a line power in and out, which probably ran the power supply for the oscillator via the RF ON/OFF switch. You can also see that they were built from parts or sacrificed plug-ins, not custom made by HP - they would have looked much nicer if so.
?
Ed
?
?

Hughes mmWave Sweeper_Page_1.jpg
Hughes mmWave Sweeper_Page_2.jpg
Hughes mmWave Sweeper_Page_3.jpg

 

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Erick thank you but unfortunately I could not justify that sort of expense so I have been collecting the parts for many years

Regards Paul South coast UK

?

From: [email protected] [mailto:[email protected]] On Behalf Of f1ghb via groups.io
Sent: 21 September 2024 05:33
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Hughes IMPATT

?

Hello,

?

We can see a full system here :

?

?

Best regards

Eric

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