I drool for a Simpson meter. Nice find and thank God those batteries did not leak. Before those Energizers, almost everyone's batteries ended up leaking if left to discharge, both carbon and alkaline types. Newer electrolytes and superior seals put Energizers on the map. In the 60's, 70's, and 80's, Radio Shack used to give customers a card for the "battery of the month club" that you could get punched each month and get free the crappiest carbon battery they could make. I swear I think they gave them away knowing that the batteries would leak quickly and destroy whatever they were in and the customer would have to come back and buy another.
Again, NICE find on the meter.
Cost me $20 because it's a 255 instead of the 260 that everyone knows. For my purposes it lacks the higher DC current range, but otherwise is just as good.
I won some test rig for my Agilent RLC for 113EUR
And some HF stuff:)
Here is a picture of the insides of the isolation transformer.
Thanks, looks straight forward, nothing special about "medical" insulation.
The medical aspect of the isolator is in the coil itself and that the housing and outlets meet requirements for devices in patient rooms. The medical coil has additional isolation for capacitance and resistance to reduce leakage currents to levels specified by the NEC for medical grade devices. Not a huge difference, but still a difference. The only advantage that I can see for us using a medical grade on our bench is that the units are usually of high quality in excellent condition, and hospitals routinely upgrade, putting all their old equipment on the market at affordable prices.
Please could anyone tell me what's the name of these wafers?
I've used them to renew my Keithley 2001's keyboard, but I've no idea how your guys call it in English.
Please could anyone tell me what's the name of these wafers?
I've used them to renew my Keithley 2001's keyboard, but I've no idea how your guys call it in English.
Yep but not me. PM SeanB, he knows them and IIRC posted all about them in a thread a couple of years back.
That much I remember but not what they're called.
I didn't know you could get those. I have a tds380 scope I had to take apart. I cleaned those carbon studs until I got black on the swab sticks. The keypad seems to work fine now. Where did you get those at?
Sent from my iPhone using Tapatalk
Please could anyone tell me what's the name of these wafers?
I've used them to renew my Keithley 2001's keyboard, but I've no idea how your guys call it in English.
Keypad repair rubber buttons KIT for TV video or audio Infrared remote controls
https://www.amazon.com/dp/B06ZYLRPGN/ref=cm_sw_r_cp_api_POFazbZ6MTT2WSent from my iPhone using Tapatalk
I usually just "borrow" those pads from old TV remote controls, using a box cutter (exacto-knife to our American friends) to remove them.
McBryce.
Tektronix 4041 and TM5003 Combo
Pulseview should support it. Just look around here:
https://sigrok.org/wiki/Supported_hardware#Logic_analyzers
or ask Sigrok. They are very responsive.
Thank you very much! I'll give that a try!
I've received today my 4.50€ logic analyzer. It is detected by sigrok (at least it doesn't show any error), so I think this is a winner. "Only" 8 channels but it should be enought
4030 Chinese CNC with 1.5kW spindle and 4th axis.
Been wanting to get into this for years, now is the time
4030 Chinese CNC with 1.5kW spindle and 4th axis.
Been wanting to get into this for years, now is the time
VERY envious.
You must post up some pics and video.
Was it expensive?
That looks like a nice CNC machine.
I see some similar models advertised on ebay as being 4 axis and was wondering how that would work. Does it allow you to go back in time to fix mistakes?
It's axis. Not dimensions. Normally there are x, y and z axis. You can also add rotating holders (more axis) so you can machine more complex parts.
Just bought a manual from Artek (the scans I found freely available are horrible) for the HP 3312A function generator. I got it recently cheap in not-quite-working condition because I wanted something I can use for sweeping old radio IFs. I decided to avoid an antique electromechanically (60hz) swept signal generator
Although I suspect that most of the problem is dirty switches.
My HP 8644B is a wonderful signal generator but sucks for sweeping typical IF bandwidths. (Slow, and the phase-continuous sweep ranges are too narrow in some cases. The phase-discontinuous sweeping is useless with the typical XY scope setup.)