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Re: HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
Hi Ed, WB2UAQ --- Thank you both for quick and helpful replies! Ed - with your suggestion, I remembered that I do have a 11707A and it is now in the unit (I've never used it before as I've not had
By David Feldman · #150446 ·
Re: HP Agilent 8753ES VNA repair [Help]
Hi, I did some tests on my working 8753ES. These results could be used for comparison. Yves
By Yves Tardif · #150445 ·
Re: 8596E Spectrum Analyzer Fault
Instead of START / STOP, try entering as CENTER and SPAN. ?Just to see if it freezes when it has enough info to start a sweep, or if it is related specifically to the sweep defined by entering the
By Dave Wright · #150444 ·
Re: HP 54512B (pair) repair
Awesome, thank you, Peter. I wonder if anyone has a fresh recollection of what battery or maybe battery-backed RAM would be suspect and possibly needed so I'd start working on an order to have the
By Radu Bogdan Dicher · #150443 ·
Re: HP 54512B (pair) repair
Seems like you are on the right track.? Many HP scopes of that era lose their minds if the memory battery goes dead. Peter
By Peter Gottlieb · #150442 ·
Re: Thoughts on Hakko FR301
And the likely price difference is worth paying in strides. I've said this before - in full agreement with Dave McGuire - but there's no price that's too high to get good, well working tools. The best
By Radu Bogdan Dicher · #150441 ·
Re: Thoughts on Hakko FR301
I think once one gets to use both kinds of units - "pistol" type like the FR301, and "pen" type like an SX-80/90/100 by Pace, for instance - the advantages become very clear. I've converted friends to
By Radu Bogdan Dicher · #150440 ·
Re: Thoughts on Hakko FR301
Bought one a few years ago and wish I had bought it sooner. It is really a fun tool to use, and having enough heat will not be a problem. I usually keep mine on the "2.5" setting or so, which
By Keith Monahan · #150439 ·
Re: HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
If you can locate an HP 11707A test plug in, it can be a bog help. It brings many of the signals out to the front of the unit for easy access. Unfortunately I do not see any on EBAY...
By Ed (scskits) · #150438 ·
Re: Thoughts on Hakko FR301
The Hakko FR301 is the only desoldering gun I have direct experience with.? I bought one after years of just using wick, iron, and heat gun or all 3.? I was thoroughly impressed with how well it
By Frank Mashockie · #150437 ·
Re: Thoughts on Hakko FR301
Sergey, I appreciate your input. Yes there is a trailing power cord but in comparison to some other desoldering handpieces that have both a power cord and a vacuum line having only one item helps
By Greg Muir · #150436 ·
HP 54512B (pair) repair
Hi all, Over the weekend I've got a couple of 54512Bs at my desk to seek to bring back to full functionality. My main scope is a 54522A, and I assume they have some commonalities, but I've yet to open
By Radu Bogdan Dicher · #150435 ·
Re: Thoughts on Hakko FR301
Mine doesn't jump at all when triggered. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
By Dave McGuire · #150434 ·
Re: Thoughts on Hakko FR301
On Tue, 25 Feb 2025, Greg Muir via groups.io wrote: As of no trailing cables it is a misstatement. You STILL have a trailing cable. It doesn't matter if it goes to a soldering station or to a
By Sergey Kubushyn · #150433 ·
Re: Thoughts on Hakko FR301
There's a trick if you can do it, for holes connected to ground planes (also works for those not). You need two irons, one with a very fine tip, and one that is a conventional vacuum desolderer. put
By Harvey White · #150432 ·
Re: Thoughts on Hakko FR301
That's a side effect of one of its biggest strengths: minimal vacuum hose length. The vacuum path from the tip to the pump is only a few inches, as compared to several feet for desoldering systems
By Dave McGuire · #150431 ·
Re: Thoughts on Hakko FR301
Same success as Dave previously mentioned. I exclusively use the FR301 on every job for unsoldering components, etc. It successfully removes all solder from thru holes allowing leaded parts to be
By Greg Muir · #150430 ·
Re: Thoughts on Hakko FR301
I've had an FR301 for a few years, and I love it. It makes short work of desoldering most anything. However, six layers will present a challenge for most any desoldering tool, as you'll have to
By Dave McGuire · #150429 ·
Re: Thoughts on Hakko FR301
Bruce, The FR301 is capable of delivering plenty of heat, no question about that. What I never liked about it, and the reason I sold mine, is it provides the finesse to handling or a... hammer. Which
By Radu Bogdan Dicher · #150428 ·
Re: HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
Set the frequency to 0.0 MHz.? ? Does the RF level meter in the RF section go to zero? The phase lock loop that most often needed adjustment is the 350 to 450 MHz loop (in the swing-out assy on
By WB2UAQ · #150427 ·