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Thank you for the replies on this subject of spares. I suppose that what I would figure to be a part that does fail, the multi-function knob, is not high on the list of failure, which is surprising

Good day, and welcome to this group. Over the years of working with relays of all kinds, including some very small signal relay like those used in RF test equipment, I've run into several occasions

Hi Alex, I have heard that the AC / DC Switch on the PSU can be swapped if you only use the set on AC. This forum has excellent Manuals, which you should download and memorize .. or perhaps Print out.

Alex, I've heard that the power button mechanism is troublesome for the 8920 & 8924c machines. The button is up front of course - but the actual device is at the rear of the unit. and has a long bar

I've worked on quite a few E8285A, 8935 (E6380 & E6381) & 8924E/C over the years. PSU / Regulator board CAPS are the most prolific failures. CRT/Plasma displays next. Several have had failed

Hello to the group, I have always maintained spare parts for any test equipment that I own, i.e. IFR 1200 SS, Fluke, and the like. Since I am new to the HP 8920B and have already done the LCD

Welcome. If the 8920B has the full frequency option (0.4-1000MHz) and thus relay RF module that is possible. Another possibility is a poor coaxial connection. Robert.

Good morning friends, Forgive me for the lack of experience to write here in the group, I have an HP8920B and it stayed for 6 months measuring 4db above in spectrum analyzer mode. Suddenly one day i

Your distribution amp will probably be happier with a sine-wave signal.

I realized that it is not the FS730 I have but rather the smaller one FS710: FS710 10MHz distribution amplifier ( https://www.thinksrs.com/products/fs710.html )

Thanks Rick. ? My 8920A works perfectly fine and runs through all the diags for the various modules without errors and all measurements I have checked are within specs. It is only the SA module

Global user key..

The following files and folders have been uploaded to the Files area of the [email protected] group. * /1Separate miscellaneous files/HP AN200 Fundamentals of the Electronic

For the reference input it does not state the need for a sine wave because there is no need.? Just like single purpose frequency counters do not require a sinewave. The reference out is a sine wave

Wow,? $1400 for a calibration is outlandish. If you run all your diagnostics, chances are your 8920 is working okay but may be off frequency, etc.. If your doing commercial work requiring a cal, you

Great! Thx for all input.?? Will build my own 10MHz low pass filter as per the article Robert linked to or just take the easy way out and purchase the one on eBay. I'll dig through my storage

I have used this one from ebay - about 3 dB insertion loss, about $10.50 - eBay item number:385415398319

Yes. I'd put it through a low pass filter though. The 8920 input is sensitive enough. Here is one example: http://www.w1ghz.org/small_proj/10MHz_Filter_for_GPS_Reference.pdf looks like same design

Fully agree even though I have not used Ricks services for actual repairs or mods but only for advice as well as Rick's excellent posts here in the group. I just wish we would have a similar workshop

I have a Spectracom GPS clock 8183A as my 10MHz frequence reference in my lab to my various instruments. I am interested in testing the Leo Bodnar Electronics?Precision GPS Reference Clock: