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One trick that worked always for me: Click on the rating score number: The seller's profile will open. Then click on 'contact member': and check 'This is not about an item' box (important!): This will

Have you tried the IFR group as well - there are people who have this stuff and might be able to help. ________________________________ Sent: 07 April 2020 03:55:29 To:

May I suggest using a glass fiber pen/brush for removing burnt-in particulate matter and charring? I've used them in the past to clean corrosions caused by leaking batteries. Regards Jan Ed Breya via

so finally all option successfully installed, thank you all for your helping comments PS: for those who don't want to waste time searching in the service manual I attached the procedure here

What a mess - it really did a number on that board section. I agree that acetone would be a pretty good solvent for some of the char, but unfortunately, it may not clean it all off. Some is likely

My 8753A had a CRT with low intensity as well as beeing unfocused. I have not tried to rejuvinate the CRT, but I took the monitor apart and made a deep cleaning of the HV circuit board. Vacuuming of

Hi all, Pocking around one of my junk boxes I happened across a couple of mixers I picked up on eBay I had completely forgotten about. One is an ADTEC M-10 20, the other is a Demornay/Bonardi DBW-633

Thanks guys, Good reminder on wooden Q tips. There is also Xylene. (Goof off) I shall go at it slowly. No rush Might have to wait as it’s sort of hard to just pop over to the local store as many are

Make certain it is a wooden steam Q-tip. Acetone will melt the plastic ones. Ken

Try Acetone.? I use it with q-tips and a rag.? Don't pour it on the equipment as it may melt some things.? Just dampen the q-tip or rag with it.? ?Have good ventilation and no open flames!!?

I’ve got one, it works well. First I suggest checking the power supply for proper voltages and regulation. It might have a filter cap in need of replacement. Jeremy N6WFO wrote:

Its a nice little portable meter. They came out when I worked for -hp- and I got one for my bench. There was a story about how it got designed but I've forgotten it. There is a battery only version

I would think that a lot of the answer depends on where you are located. If the meter has to be shipped twice the cost could be very high depending on locations. Stuart K6YAZ Los Angeles, USA

I've never put my hands on one, but I checked out the specs a bit. It doesn't seem particularly noteworthy in any specific way, but it sure does look like a nice handy all-around bench meter with a

Hi all Just switched on a 427A volt meter that I rescues a few weeks ago Just wondering is their any think special about it and is it worth spending any time on as it reads low Paul

I can haul mine out of the rack for comparison purposes if necessary. Not sure if mine has any options fitted but doubt it - It DOES have huge handles though-they stick out sideways as well as

Not directly HP related but this is where the knowledge is. I am starting to repair an IFR-1200S that had an incident. A 150 uF 15V tantalum went up in smoke. What is the best solvent to remove the

Hi Paul: I sent him a message about an item just now, on Ebay… no problem. It's in my sent box, under Messages in My Ebay… so I assume it is at least spooled up on Ebay. Best wishes and regards.

Yeah. I think if you can track down the Japanese manual, that might solve the dilemma. Or a see if the any of the HP Scotland guys on the list can remember what it's all about. :^)

Thanks for the file Dave! I'll save it for future reference. :) I was thinking something to do with Japanese market as you say Andy but there's no mention in the manual from the Keysight website.