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Those look like Bill West switches to me.? They are very common in HP gear, particularly of the 70's and 80's vintage.? There was just a thread on here about them just in the last week or so. You

Hi group, I have a HP5343A frequency counter with a broken "5" key. It's just like a typical key on any HP 80s instrument. Please see attached pictures. It looks like it's missing a metal piece that

I had the same problem got a Tek 502. ?I got a Stancor 6.3 volt filament transformer with 2500 ?volt isolation . ? Found the best place to mount it, minimum trace disturbance. ?Simply moved the

As said I am generally open to forward any kind of stuff which is available in Europe. As long as I can post it, I am willing to do it time allowing, - - - - - With best regards Tam HANNA Enjoy

Understood. And that's much appreciated. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

Local abbreviation for the Austrian Federal Mailing service. Apologies to the offended. Wanted to type a short email and offer help even though I am already underwater. Lesson learned. --- With best

Yeah, Tam please clean it up, this is a very large mailing list populated by people from all walks of life. Unless there's actually a shipping company whose real name is "JewPost", please don't do

What is 'JewPost in Austria', please? Sorry, but I feel offended by this language!

Always too many projects!

I haven't looked at the 175A in about 15 years (besides as its' function as large paper weight).? Is there a better scan of the manual then the one on BAMA?? As I recall, it was very hard to read

Dave, let me know if I can help with the 175A power supply; the low-voltage supplies are all solid state (except for one VR tube) and fairly simple. I have a working 175A and a parts unit. I’m

You could also find a 1:1 isolation transformer with a 6.3 volt winding, perhaps. Harvey

I picked up one of the 180 series and a small pile of plugins many years ago, and while I was very excited at the time, I soon lost interest because everything was flaky, and was poorly engineered

I have a 1707B scope, and the CRT filament winding is arcing to ground. I disconnected the winding and substituted a 6 volt battery sitting on a well insulated pad to light the CRT and the scope works

If still available, I could sure one as a spare for the RDP panadaptor I am restoring to go with my RDO radar search receiver (Shipboard version of APR-4). How much for shipping, etc. Do you accept

JAN CNU 5CPI 5 inch display two foot long CRT NOS in box Free to a good home Wally

Hi all Regarding HP 180 scopes if you ever get mains ripple on the display most probably it is a 10 uf at 100 v axial that requires changing suggest you go for 150 volt at 15 uf Regards Paul

OK, good to know, so I was wrong, no fan. wrote: Jeremy Nichols Sent from my iPad 6.

?? I had a 180 when I worked for -hp-, I don't remember it having a fan. I thought it was a pretty good scope. -- Richard Knoppow dickburk@... WB6KBL

Hi Dave Well, I am interested (especially since I spent some time over at Queensferry and knew some of them), and would *really* like to do it, but I just can't justify the large investment required.