Good work I got a counter like that and it's a good unit.
Some while ago bought a Marconi 2024 2.4GHz counter with a broken (but just readable) for USD$500 but thank to grumpydoc et al found a used but working LCD, 30mins work later a nice working 2.4GHz freq gen! A small crack in the perspex remains off to the LHS but I'm ok with that for the price.
Has the high power option and harmonics are below the -40dBc
https://www.eevblog.com/forum/repair/quick-repair-project-marconi-2024/
.
The instrument came alive, thermal camera also didn't detect any overly stressed parts:
What thermal camera did you use?
Looks like a FLIR One has just made its way into my shopping list.
Looks like a FLIR One has just made its way into my shopping list.
Thermal camera is a really useful tool, I bought it when it first came out, and I can say I've relied on it more often than I thought I would. I've been pretty happy with my FLIR One.
I recently picked up a couple of Instruments off Ebay.
1. HP 5334B Counter, $35 and works great, needed cleaning.
2. HP 8591E Spectrum Analyzer, $200. Needed a new CRT. Found the entire unit on ebay for $50 (New). Passes confidence test, works well.
Gary
@deepskyridge those are some awesome bargains.
Indeed, nice catch !
Were they sold for parts, out of order, untested ?
Nothing like that, I don't know of any hacks for it. I bought it to re-sell. Figure I'll make $500 or so. Current MSRP is about $7K. Crazy.
It has to be device that is an industry standard for measuring something esoteric that you need to either repair/buy another one if it smokes or rebuild and recertify your whole test setup and redo all paperwork, spending stupid amount of money.
It happens, and that's why for example you can still buy brand new 25 MHz generic TV-repair era analog scopes from some companies (eg Voltcraft) for pretty hefty price. Or analog meters (in microwave ovens industry procedures still call for AVOmeter rated for 2500V RMS to measure secondary of transformer...).
So here's the 8753C that came with a blown A sampler mentioned in the 8753C repair thread, shown doing an S11 measurement using a 11667A power splitter and Mini Circuits directional coupler. Kirkby Microwave female calibration standards are on the left.
[Yes, I know there is something wrong with this picture, but note that vertical scale is 1dB/div. I'm still working out why...]
Late night surfing found another ebay deal.
Got five Tektronix P6139A 500 MHz probes, three Agilent 10074C probes and one 1160A(this one is parts only) for $55.00.
All of the probes work, about half of them are complete with ground clips and hooks.
the P6139A's are a great match for my TDS7104.
Late night surfing found another ebay deal.
Got five Tektronix P6139A 500 MHz probes, three Agilent 10074C probes and one 1160A(this one is parts only) for $55.00.
All of the probes work, about half of them are complete with ground clips and hooks.
the P6139A's are a great match for my TDS7104.
Solid! I have spent quite a few hours with P6139A in my hand. Classics that still work great.
Late night surfing found another ebay deal.
Got five Tektronix P6139A 500 MHz probes, three Agilent 10074C probes and one 1160A(this one is parts only) for $55.00.
All of the probes work, about half of them are complete with ground clips and hooks.
the P6139A's are a great match for my TDS7104.
Solid! I have spent quite a few hours with P6139A in my hand. Classics that still work great.
Yep, they are quite nice and seem to the later generation that are black. I was also able to use the Agilent 1160A as I already had a complete 1160A probe kit and they include a spare probe tip and sleeve.
Late night surfing found another ebay deal.
Got five Tektronix P6139A 500 MHz probes, three Agilent 10074C probes and one 1160A(this one is parts only) for $55.00.
All of the probes work, about half of them are complete with ground clips and hooks.
the P6139A's are a great match for my TDS7104.
For 55$? That is truly excellent!
TEK 222. While not a real score (for the price I paid) it is in excellent condition, had the manual and the carry bag
When the Tek 200 series came out I was a young teenager and I was blown away by the small size. Was missing the earth clip (uses 2mm banana - so easy fix) and had both probes. Dead battery (the weird 8V SLA - unobtanium) but will put some 18650 Li Ions holders in for portable use, if needed.
TEK 222. While not a real score (for the price I paid) it is in excellent condition, had the manual and the carry bag
When the Tek 200 series came out I was a young teenager and I was blown away by the small size. Was missing the earth clip (uses 2mm banana - so easy fix) and had both probes. Dead battery (the weird 8V SLA - unobtanium) but will put some 18650 Li Ions holders in for portable use, if needed.
Oh, they're cute.
I may be talking BS but check out the Hawker Energy Cyclon cells, they can be very handy if you're putting together a pack which needs non standard multiples of 2V cells and don't want to mess around with LiIon cells
The hospital I work at puts out surplus equipment (no electronics
) for auction that few people bid on. I saw these after the action ended so got them for 1/2 the minimum bid. Total paid : $7.50. $2.50 for a high quality chair for my bench and $5.00 for an awesome modular equipment cart with a smoke evacuation unit that was attached to it. The smoke evacuator works great! Overkill for solder fumes but not sure what else to do with it
. "Breathing laser smoke is a smoke hazard" but alas, no lasers in my lab.
Hi
Just scored this
A Solatron 7060 Multimeter for £60, a 6.5 digit multimeter
According to the plate on the back, this is a full blown G version
Only problem now is that it is showing there is a 40/50uV difference with my Thurlby 1905a 5.5 digit multimeter
Now, I am going to have to figure out which one is correct or pay for a calibration