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It has been obsolete for some time. Although I have never tried this trick in a 3325A, I have used the Analog Devices AD633 (readily available from DigiKey and others) in other applications where I

Have you tried ebay ? Mark <marks@...> wrote: Hello All, I am having trouble tracking down a MC1495 or SG1495 or 1826-0437. Its a 'wideband linear 4-quadrant multiplier' used in

Hello All, I am having trouble tracking down a MC1495 or SG1495 or 1826-0437. Its a 'wideband linear 4-quadrant multiplier' used in the AM and Amplitude levelling in a 3325A. Does anyone sell this

Hello marsac1212, would it be helpful to you if I send you a scanned copy of the 35677A schematic? BTW Are you aware of the thread about the HP 35676A/B Transmission Reflection Kit for the HP

Planning to use mini-circuits ZASWA-2-50DR 1.- Yes it is absorptive type i.e 50 ohm terminated 2.-The switch is DC coupled, so LF does not seem to be a problem... likely it is not PIN based. 3.-

I have read HP's Technical Specifications and comparison of the 8752C and 8753D. I am confident the 8752C features are sufficient for the work I'm doing. So my question for the group is: Are there

I looked but couldnt find a source for download online, anyway its not really rocket science, the connector basically only controls a SPDT switch that switches the RF from the source to either the A

Hello group: Does anybody have the service manual of the 35677A S parameter test set? All I need to know is what the pin out of the little connector on the back? I am trying to change the internal

Since many people dont have the $ or the acess to good tools at work i have taken the time to put together some recomendations for free or low cost tools to make life easier ! be aware that most tools

Agreed, assuming the caqpacitors around the YIG tuning circuits are all up to spec. I've seen one or two (non Ta) go low C. Best, -John Alexander Whiplash wrote:

designing for low phasenoise never has been a trivial task, this especially goes for wideband oscilators such as YIGs, you also have to drive the shielding of the tuning lines almost to a excessive

--- Kuba Ober <ober.14@...> wrote: There are many sources of noise that can get onto the YIG tuning current. Power supply ripple will have already been knocked down to a very low level in

I think that Bob Pease wrote a good article or two about ripple rejection for power supplies. Google for "what's all this ripple rejection stuff anyway". He shows how to do it with high voltage

First off , are you sure that your 8482A is ok ? have you verified operation with another powermeter ? one offender on the 437 as well as other meters is the input connector, if the contacts wear out

Do you have the sensor connected to a 50 ohm source (turned off) or pad? Sometimes an open sensor input can make things jump around especially on low ranges. Best, -John Richard wrote:

I have a nice HP 437B Power Meter that is not working. It passes self test OK, But the output from the Sensor (Good 8482A) displayed varies all over the place. Even after zero preformed on Power

Ok i know i sound like a broken record but i still consider the 70000 series the best choice if you need a good lab analyzer. First off its a synthesized unit and you can piece it together and expand

just out of curiosity i would like to study the E4401 and see if it can be hacked to go to 3GHz, Agilent was good about putting features in their units and then limit them by Firmware corrections, i

What's your budget like? What features do you actually need? If you are OK with your current model except for its upper tuning limit, have you thought about building a downconverter for it? There

Hi. A few years ago I had the opportunity to purchase a used E4401B Spectrum analyzer which has worked well for me. I am now interested in looking as signals between 1.5 and 2 GHz which this analyzer