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We manufacture a large number of amplifiers for our powered systems, most include the latest in digital amplification, and wireless technology for connectivity.
Fabricamos una importante cantidad de amplificadores para nuestros sistemas autoamplificadas. Estos amplificadores incluyen lo último en tecnologÃa de amplificación digital y conectividad inalámbrica.
Arguably the most intricate and beautiful of the collection, this piece had an immaculate layout.
This is a large collection of analog tubes.
The clock is assembled in a semi-enclosure made from old cassette tape cases. (Thanks to Denis for this idea.) Yes, it's a bit messy.
That package "U105" is really odd. I've never seen anything like that before, and have no idea what it is. U104 is the same type of thing. Given the size of the traces and caps near them, I assume they're power-related, and that's why they have such a huge package. Maybe some sort of regulator?
Here are the buttons. I'd actually prefer a softer cap on those switches, but it's good to see that these aren't just cheap tactile switches, but higher quality switches with more throw. These should last a long time and take a lot of abuse.
I illuminated this motherboard by shooting a green-geled flash behind it.
Copyright 2010, Amy Strycula
When I first looked at the voice circuits on the front, I thought there were lots of resistors and capacitors missing. So I took the board out and surely enough, it's a double-sided load. A crap load of really tiny (0201 or so) resistors and capacitors, plus some diodes and transistors.
it seems that the silkscreen is rotated or skewed, as you can see the edges of IC3 rectangle are not straight
the fab house will add their own ID on the board - this usually depends on your design. in this case, it's at the bottom right
We get a lot of stuff from Asia, so it all comes with funny plugs, travelling just adds to the fun.
Left to right, top to bottom we have:
Singapore wall socket, UK
Adapter UK -> NZ/AU
Double adapter NZ/AU
My cell charger NZ/AU
Adapter NZ/AU -> everything
Andreas cell charger Euro
Camera charger US
this is incomplete. An ECG based on a schematic from a Wright State University lab I described here. The Green/Yellow leeds going off screen are meant to connect to eletrodes, one on the wrist and the other on the foot. (a 3rd electrode should connect to ground). The AD620 IC Op-amp on the left handles initial gain. The lead from the larger capacitor (1000uF) can be put out to an oscilloscope and you should already see a heart sine wave. atm this leed goes to the first filter (the other IC in the picture). The two white wires are supposed to be a capacitor and resistor instead, but I do not have them on hand and need to get later. Finally, the orange wire going off the board is supposed to be the final output to an oscilloscope, with high,low and dual amplification having taken place. The grey wires are for negative and positive power sources. the resistor to the far left of the breadboard, is a 220ohm which can be removed.
Photos from an article about some different identifying marks on chips. You can read that article here.
Voigtländer Vitrona (1964)
Lanthar 2.8/50 in a four speed Prontor 250 shutter, 1/30 - 1/250 and B
Scale focus
The first camera with a built-in electronic flash:
The batteries and electronics are housed in a bayonet fitting, on the bottom of the camera, pistol grip
A switch in it controls the charge of the capacitor: continuously charged or just at the pressure of it
There's a flash ready indicator in the viewfinder and also on the top plate
GN 9 @ 100 ISO, recycle time 8 - 15 seconds
For automatic operation of the flash, 25 - 400 ISO, the lightning symbol, in the aperture ring must be selected, the aperture will relate to the focus distance
24 x 36 mm exposures on 35 mm film
Filter size 32 mm push-on
This camera was a gift of my cousin António AbÃlio Dantas Gomes
I invite you to visit my blog at Classic Cameras
My workbench in all it's glory. Believe it or not, I actually get (got) stuff done here, but I'm much happier with my remodeled bench since I moved.
I promised pictures of the new setup and here they are. Its not pretty, it works for now. The c ardboard has to go for anything involving water. I need to find some sort of large rigid plastic cubic cylindar to house all of this in.
A sub-collection within my vintage radio collection. They are by Emerson, Silvertone, Truetone, RCA and GE and they all work.
Oscilloscopes are like eyes for electronics. If you don't know how to use one, you'll have no idea what's going on.
IBS Electronics, global electronics components distributor, is offering a comprehensive selection of electronic components and computer products. IBS Electronics is warehoused more than 1000,000 at any time. At IBS Electronics, you receive highest level of service, product selection, price and overall value unmatched in the industry.
Newly acquired. Plain meter-less prism. Just started using it. It seems to work flawlessly (light tight too). It has serial number 7279051 so it is from the early 70's, just before the final "Apollo" models. On this picture I mounted a 24/2.8 Nikkor-N, which I believe is from the late 60-s. The lens is AI-modified with rabbit ears removed, but this is no problem on this camera with plain prism.
Agfa solinette II Objectif Agfa Apotar 50mm f/3.5 Obturateur Prontor-SV Vitesses B, 1-300 Synchro Flash Année 1950-60
Nice thick steel panel for mounting the encoders. This makes it easier to remove the top panel without scratching things up, and also lets the whole thing take more abuse while not requiring the top panel be made of thicker material. Plus, it just looks nicer not to have the nuts showing through the top panel.
Ebay deal. SMCP M 40mm f/2.8. The camera it came with (ME) was sort of junky, but the lens will go nicely with the MX, or even the K-7. It is about a perfect sized lens with this camera :)
Took about 1 1/2 hours in total and was generally very straight forward. There were a couple of awkward places in the construction (shutter springs "C" and "D"!!) and adding a couple of the panels after the sides were attached was a little bit fidly. But on the whole quite straight forward. TBH, I can't see myself using it much after the put the first "I put this camera together" roll through, as I've quite a few other recent purchases to try out, all of which cost about the same, or even less, than this and have adjustable shutter speed, ISO and aperture size (i.e. not a toy) and all have very good lenses to boot! We'll see!
Taken with my Panasonic G1 and Helios 44M-4 58mm F2 lens from a Zenit 11.
While doing a speaker product shot I decided to have fun and break the rules again. The product shot went well and will post it tomorrow. It was this shot that spoke in sound to me, hope you enjoy it.
Set up: Fairly simple, a strong mag light pointing forward between the speakers and F stop at 20, gave these bright light rays.