Blackbird Vacuum Tube Preamp
... with equivalent miniature 9-pin double triode tubes from other manufacturers - Mil-Spec NOS tubes are recommended! The tube in the top right hand corner is the first gain stage and replacing this with types 12AV7, 12AT7 or 12AY7 will yield lower gain and shift the bias point to create different brea ...
... with equivalent miniature 9-pin double triode tubes from other manufacturers - Mil-Spec NOS tubes are recommended! The tube in the top right hand corner is the first gain stage and replacing this with types 12AV7, 12AT7 or 12AY7 will yield lower gain and shift the bias point to create different brea ...
Precautions on printed circuit board (PCB) design
... it is recommended to connect crystal units with IC and capacitors by the shortest wiring length. This pattern length should be approximately within 2 cm, but the shorter the length the less EMI radiates as far as the placement of components such as IC and crystal units does not become problem. Since ...
... it is recommended to connect crystal units with IC and capacitors by the shortest wiring length. This pattern length should be approximately within 2 cm, but the shorter the length the less EMI radiates as far as the placement of components such as IC and crystal units does not become problem. Since ...
Parallel Gain Stages..
... more impedance, there's not many choices in the 12B*7 catagory. It actually didn't sound as good tonewise as the 12BH7, maybe there's no benefit to a higher gain tube in a cathode follower service. In the V1 position the 12BZ7 doesn't give you more gain than a 12AX7 either (I don't think any traditi ...
... more impedance, there's not many choices in the 12B*7 catagory. It actually didn't sound as good tonewise as the 12BH7, maybe there's no benefit to a higher gain tube in a cathode follower service. In the V1 position the 12BZ7 doesn't give you more gain than a 12AX7 either (I don't think any traditi ...
Location Sound I - Location Sound Class
... Not useful unless they are amplified. Line levels are strong, over a hundred times stronger than MIC levels. (Volts) MIC levels need to pass through a preamp in order to become line levels. MIC preamp knobs on FP33 Mic level into mixer ...
... Not useful unless they are amplified. Line levels are strong, over a hundred times stronger than MIC levels. (Volts) MIC levels need to pass through a preamp in order to become line levels. MIC preamp knobs on FP33 Mic level into mixer ...
Monobloc Power Amplifier Stealth Max Users' Manual
... Tube substitution____ Any vintage or currently manufactured pair of KT88 beam tetrode power tubes can be used in the Stealth Max. Lowest distortion is obtained using a matched pair to achieve identical bias currents in both tubes. The 6SJ7 metal small signal pentode was designed for audio use, offer ...
... Tube substitution____ Any vintage or currently manufactured pair of KT88 beam tetrode power tubes can be used in the Stealth Max. Lowest distortion is obtained using a matched pair to achieve identical bias currents in both tubes. The 6SJ7 metal small signal pentode was designed for audio use, offer ...
Untitled
... to the "Fleming's Valve" and the vacuum tube was a fact of life. The door to electronic amplification was now open. During World War II, data gleaned from their intensive research on the detectors used in radar systems led Bell Telephone Laboratories to the invention of the transistor. This reliable ...
... to the "Fleming's Valve" and the vacuum tube was a fact of life. The door to electronic amplification was now open. During World War II, data gleaned from their intensive research on the detectors used in radar systems led Bell Telephone Laboratories to the invention of the transistor. This reliable ...
Vertical Resolution
... Lag occurs because it takes time for the image to build Fluoro up and decay on vidicon Tower target globules ...
... Lag occurs because it takes time for the image to build Fluoro up and decay on vidicon Tower target globules ...
Infrared camera ME207
... x-rays, ultra violet, a thin region of visible light, infrared, terahertz waves, microwaves, and radio waves. These are all related and differentiated in the length of their wave (wavelength). All objects emit a certain amount of black body radiation as a function of their temperatures. Generally sp ...
... x-rays, ultra violet, a thin region of visible light, infrared, terahertz waves, microwaves, and radio waves. These are all related and differentiated in the length of their wave (wavelength). All objects emit a certain amount of black body radiation as a function of their temperatures. Generally sp ...
Presentation - EE Senior Design
... • Electronic-control paintball gun (already available from a teammate) • Two actuators (servo motors) for motion in two axes (~ $10 each) • Servo controller with interface to system microcontroller ...
... • Electronic-control paintball gun (already available from a teammate) • Two actuators (servo motors) for motion in two axes (~ $10 each) • Servo controller with interface to system microcontroller ...
Image Sensing
... • Method assumes constant lighting on all patches and works best when source is far away (example sunlight). • Unique inverse exists because g is monotonic and smooth for all cameras. ...
... • Method assumes constant lighting on all patches and works best when source is far away (example sunlight). • Unique inverse exists because g is monotonic and smooth for all cameras. ...
Specifications
... Built in RS-485 control, high resolution dual voltage, and full control (from DVR systems, Samsung SSC-1000, SSC-2000, or the SSC-RC130 motorized zoom camera controller) allows the IC series to be used for all types of security applications. The SCC-C4303 Day/Night camera performs in a variety of li ...
... Built in RS-485 control, high resolution dual voltage, and full control (from DVR systems, Samsung SSC-1000, SSC-2000, or the SSC-RC130 motorized zoom camera controller) allows the IC series to be used for all types of security applications. The SCC-C4303 Day/Night camera performs in a variety of li ...
MicronViewer 7290A MicronViewer 7290AX
... The 7290AX includes a rechargeable nickel-metal-hydride battery, viewfinder with diopter focus and adjustable handstrap. ...
... The 7290AX includes a rechargeable nickel-metal-hydride battery, viewfinder with diopter focus and adjustable handstrap. ...
EMI 2001
The EMI 2001 Broadcast studio camera was an early, very successful British made Plumbicon studio camera that included the lens within the body of the camera. Four 30mm tubes allowed one tube to be dedicated solely to producing a relatively high resolution monochrome signal, with the other three tubes providing red, green and blue signals. Even though semiconductors were used in most of the camera, the highly sensitive head amplifiers still used thermionic valves in the first generation of the design.Integrating the lens within the body of the camera had both positive and negative effects. On the positive side, it meant the optical nodal point of the camera was close to the centre of gravity, which could make operation easier and more instinctive when used on movable camera mounts such as pedestals. The downside was that lens manufacturers were limited to which lenses they could adapt to fit to the camera. This made the 2001 less attractive for outside broadcasts.The 2001 was both heavy and large. The pull-out handles at each corner needed four people to safely move the camera with the lens in place. It also required a separate remote camera control unit and the cable connecting the two was over 2 inches thick. The standard servo controlled studio zoom lens had a 5 to 50 degree horizontal angle of view, with a minimum focus distance of either 36 inches (J type) or 18 inches (K type)First produced in 1966, by the early 1970s almost all of BBC Television's studios and many outside broadcast (OB) units were equipped with the 2001. Several ITV companies purchased or leased the camera including Thames Television, Yorkshire Television, Associated Television, Granada, HTV, Anglia and London Weekend Television. Independent outfits such as the early cable television stations Rediffusion Cablevision, Sheffield Cablevision and the educational television arm of the Inner London Education Authority also purchased the camera.Although there was no predicted lifespan for the camera, the heavy hot-running four-tube design was considered somewhat outdated even when it was new, which contributed to the camera's near-total failure to sell to broadcasters outside the UK. Several ITV companies had begun replacing them in the late-1970s with the last commercial operator (Thames) phasing them out in 1986. However the BBC kept a number of such cameras in operation at their Elstree Studios until 1991; they were kept going by cannibalising identical cameras left behind by ATV when the BBC purchased Elstree from them.The EMI 2000 (as it was originally called) that was originally tried and tested by the BBC in 1967 used 30 mm integral mesh lead-oxide vidicons (vidicons are the tubes made by RCA) They were re-released a year latter using Plumbicons (Plumbicon is the trade mark for Philips lead-oxide tubes) It also used a themionic valve for the first stage of the video head amplifier. Unfortunately, the BBC technicians were disappointed by the picture results produced by the original testing model supplied to them in 1967. So disappointed in fact that they hesitantly bought 17 Marconi Mk VIIs in order to commence colour broadcasting on BBC2 on 1 July 1967 as the redesigned and renamed EMI 2001 would not be ready for the colour launch date on BBC2. EMI re-released the renamed 2001 (now with the option of separate mesh tubes, either Plumbicon or Leddicon (tubes made by EEV) and solid state (FET) head amplifiers) in early 1968 and the BBC moved their Marconi Mk VIIs to the weather, news and presentation studios from TC7 and TC8 in Television Centre.When sold abroad, the EMI 2001 was carried under the Thomson SA brand - hence ""Thomson TH.T 2001"". How this came about is unknown as EMI and Thomson SA did not have business links. The Thomson 2001's, like the EMI's, also used Plumbicons; however, due to a brochure which was printed in French, it was presumed that they used Vidicon tubes. But, apart from the silver viewfinder squares (instead of white) and the brand name change on the front and sides, the cameras were the same. In the United States, the cameras were marketed by International Video Corporation as the IVC/EMI 2001-B (four tubes), with another version, the IVC/EMI 2001-C, consisting of three tubes. Only one U.S. station is known to have purchased the 2001: WSNS-TV in Chicago, in the early years of its operation.