Icom IC-703 - time to get on HF
Cool !
I have the SyncMaster BX2450 and it is a great screen.
Looked that one over but didn't have a stand so passed it up.
Good Move!
Stands can be gotten off of evilbay for $38. Under $65 for a 24" monitor/stand.
Icom IC-703 - time to get on HF
QRP!
Very nice little radio radio.
My new (to me) precision pulse generator. Battery powered, with approx 50ms pulse width and accurate fixed 30 sec pulse spacing. 330mA drive capability into 1.5R. Still calibrating but currently within 2ppm.
Just bought two Keithley 2000 units partialy working for 400$ delivered. Pretty good deal if I can fix both...
My new (to me) precision pulse generator. Battery powered, with approx 50ms pulse width and accurate fixed 30 sec pulse spacing. 330mA drive capability into 1.5R. Still calibrating but currently within 2ppm.
Cool stuff. Last time I saw such a thing was around 1987, I really enjoyed to watch it working
Waiting for PCB's to complete with 28 pin SOIC's, so bought 0.5mm solder :
Bunch of pipes and batteries.
The plumbing is for restoring a Varian 936-60 Helium Leak Detector (
http://everist.org/NobLog/20170224_summer_vacuum_odyssey.htm#ideal), and the batteries are for an EM Electronics N11 Nanovoltmeter.
https://www.eevblog.com/forum/metrology/em-electronics-model-n11-dc-nanovoltmeter/The He-Leak detector has been sitting in storage over 10 years. So there are a few things that need work. All the pneumatic piping had rotted, so is replaced (black nylon tubing.) The copper and brass stuff is for a re-arranged oil-mist scrubber on the outlets of the two rotary vacuum pumps. Yes, as shown the pieces don't mate. They will after I machine and silver solder them
The N11... I've been trying to think of some way to replace the stupid 7-NiCad battery packs with something using 2 or 3 18650s and DC-DC converters. But it doesn't seem possible without altering other wiring in the unit, and I don't want to do that. Also, running a switcher inside a nanovoltmenter, seems like a good way to inject relatively huge noise into the signal. So I gave up. I need the nanovoltmeter working again for something (that 10 or 20M ohm resistor check) and so will just rebuild the battery packs. Except I'm starting to think buying NiMH may have been a mistake. Seems they don't like being only ever trickle charged?
Neat. My Uncle was US Eastern Region sales manager for Varian.
Ahh yes the helium leak detector. We had a smaller version that got more use when I was at Nat Semi in the 80s. Great fun squirting He at an ion implanter searching out leaks after a PM was finished.
-Pat
Just bought two Keithley 2000 units partialy working for 400$ delivered. Pretty good deal if I can fix both...
I thought firstly you bought that abused units from Israel, but they are still listed. Where it was located ?
I thought firstly you bought that abused units from Israel, but they are still listed. Where it was located ?
Yes I have bought 2 of 5 pcs listed.
My new (to me) precision pulse generator. Battery powered, with approx 50ms pulse width and accurate fixed 30 sec pulse spacing. 330mA drive capability into 1.5R. Still calibrating but currently within 2ppm.
Nice, my late grandfather had a late 1890's master clock. It was sold when we had a yardsale many years later(I didn't know it was sold, or to who) for not enough money. I think it sold for about $100
.
That's sad, it must have sold for way lower than its true value (not to mention sentimental value), prices have risen steeply in recent years too. Far too many master clocks were simply torn off the wall and skipped when buildings were demolished, together with all their slaves.
I've wanted a Synchronome since I was 11 and first saw the one at my senior school. I'd more or less given up on getting one until I found this relative buy-now bargain, so I'm still grinning like a Cheshire cat (which coincidentally is where it came from
). Hard to believe that a pendulum clock can be
that accurate, as near as I can judge, within <100ms since Saturday! Even the original guarantee of <2s per week is pretty amazing.
I thought firstly you bought that abused units from Israel, but they are still listed. Where it was located ?
Yes I have bought 2 of 5 pcs listed.
Aha
Good on you ! Repair log in appropriate thread is expected !
What did you buy today? Post your latest purchase!Not exactly today, but very recently. Philips/Fluke PM 9010/091 probes from german ebay from seller
c_h_r. 25€/pc. Very bold quality. Better than chinese 10$ probes.
Look at the photos. There are also PM9001 which I bought years ago on fleamarket for 40€/pack. Also good quality.
This seller seems to have a lot of these. However he is out of office now. He has CLMT.de website, however temporary unavailable.
Pace Fume Extractor from a local electronics recycler. CAD $20. Filter looks almost new, blower works fine. I'll spend more on hoses or pipes to the workbench.
My mini-circuits order arrived! ZX90-2-19-S+ (2x multiplier), VBFZ-3590-S+ (Bandpass), ZX05-83-S+ (mixer), to replicate the cheap approach to a tracking generator for my HP spectrum analyzer, as in
http://www.kerrywong.com/2016/01/10/building-a-tracking-generator/Only difference is that with my HP 8562A, the LO starts at 3.9107 GHz, so I set the signal generator to 1.95535 GHz.
Pictured is a high pass filter I had lying around. (Yeah, I need to get GPIB going again) Also that's not having subtracted the trace with the mixer output directly connected to the SA input, oops.
New member at my bench table, an used TTi PL330QMD, my 1st T&M gear made and built by Britons.
VERY nice supplies. Got two PL310's here. Enjoy
Some scopes, auction score
Nice, my only scope is a 2246.
Very nice! My main scope is a 2246, too.
-Pat
Just ordered a Amscope double boom 7x-45x microscope SM-4T. Also ordered a .5x Barlow lens and a 144 led Ring light.