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Mine also came from the guy in Poland : he is on eevblog. It works well and avoids the problem with self-oscillation in some prescalers (due to being a clone of the HP design ).

Hi John unfortunately the 12.6 to 18 Ghz wave guide parts are not that easy to find at low cost as not used by radio amateurs The Frequency Meter is put in series with a RF signal generator and a

Hi. If it is (as I think you said) a switching power supply, then usually only one output rail is regulated closely by the main switching regulation loop. The other rails rely on either close coupling

The biggest problem you run into now in regards to upgrading a 5352B to 46GHz is finding the connector and the front/dress panel for the option 05 units. Option 05 did not only change the connector

OMG. Yesterday afternoon I did not know that A7A1 existed. Yesterday evening, I needed yet another signal generator and had to turn to my 8662A. That one had an easy live in the last years because of

Good chance you have an open electrolytic filter capacitor on the PSU motherboard. From what I've seen, the supply tries valiantly to run in the presence of the resulting ripple, and it *almost*

Low leakage (< a few pA) given the input impedance for the low DC volt ranges. A 2N4117A/PN4117A diode connected FET perhaps? 40V breakdown and 50 mA max gate current. Horowitz/Hill in the Art of

It depends , the 46GHz option changed the input connector , the regular 5352 just as the 5351 used a 3.5mm male connector which will work to 40GHz with degraded specs which doesn’t matter for a

Hi Lothar, I was refereeing to Dave's question of upgrading a 40GHz 5352B to a 46GHz 5352B option 5. And this is according to the posts I linked only connector and cable change. But as also described

Actually not , there were also some component changes on the A12 board between the 51 and 52 Counters , you can look at the schematics of the board to figure it out Sent: Tuesday, May 24, 2022 1:46 AM

I’ve upgraded my 53181 with an eBay prescaler and oven timebase. I believe I got them from a fellow in Poland. No problems at all. For the timebase I calibrated it to a rubidium standard as

These are "waveguide flanges". Waveguide is a common, very efficient way to move microwave energy around. See the Wikipedia article about it for an introduction. The size of a waveguide, and thus the

I recently acquired an HP P532A frequency meter. I know it's a resonant cavity device that goes from 12.6 GHz to 18 GHz but I don't how or what to hookup to the two flanges to get it to work. I've

Same thing for me, the option 3GHz (from China) works fine with my 53132A. I’ve done sensitivity test when I bought it, and it was OK. Yves De : [email protected]

I had problems with over voltage. I got UK Power Networks to reduce the voltage. But speaking to their engineers, UK Power Networks aims to supply consumers 245-250 V in rural areas. They get far more

I think these "prefer" a sine wave but will accept either. ________________________________ Sent: Tuesday, May 24, 2022 10:34 AM To: [email protected]

Ok well that was embarrassing. I found out what was wrong with it purely by accident. Looks like CR9 was broken. I was inspecting the area around the high impedance after the 100K carbon comp input

Hi Mike, I'm a bit slow on responding.... Great that the manual was what you needed. Unfortunately I can't help you with the transistors, but hope you are able to source them. Good luck with the

Ok got a decent DMM at my disposal. Scope due to arrive tomorrow. I applied the following test cases: 1. From step 5-6. Short V/ohms and COM terminals, set DCV and 10m range. Unstable reading at

From the time-nuts side of things, the general consensus is that the mismatch between 50 and 75 ohms at the typical 5 or 10 MHz distribution frequency is a complete non-issue. Even more so when you