The TO251 transistors on the lamp and Rb-cell are IRFU220 MOSFETS, 4.6A/200V, 40 Watt. They can be replaced with an IRFU420 or STD3NB30 The Rb lamp exciter transistor is an MRF160, it's a MOSFET from Motorola. Ft 500 Mhz, 4W, 28 volts. A possible substitute could be the PD57006 from ST.
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So I've got myself an Efratom FRS Rubidium, just to discover it loses lock after maybe 20 minutes on the first try. There's quite a bit of information on this unit around here and the web, so I found the manual and some other papers regarding their repair. I managed to repair (or rather re-adjust the drive level of the frequency multiplying ...
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GovDeals' online marketplace provides services to government, educational, and related entities for the sale of surplus assets to the public. Auction rules may vary across sellers.
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The 1 PPS Channel Here is the outline schematic of the digital channel of the video amp that is now used for the 1 PPS signal. The fast comparator used in this circuit is an LT1016. The Micro-controller. Here is the schematic for the micro controller which now also monitors the 1 PPS output of the RBS. The shaded area is what has been added to ...
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Purchase Ball / Efratom MGPS Modular GPS Display 82204098 Module in San Jose, California, United States, for US $374.99. Ball / Efratom MGPS Modular GPS Display 82204098 Module This item is suppose to be a …
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I think the 100318 is newer version of FRS-C. Output is 10MHz Sine wave. Very easy to connect to that 10-pin male connector. You can get Frequency,Lock Monitor which is TTL on that unit 0.06 = Locked 5V = Unlocked, Lamp Voltage and Ground, Power to Heater and + power is on one pin.
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Re: Repairing an Efratom FRK-L Rubidium Oscillator. Yes, my unit has the hole and the lamp actually still ignited without the heater if i remember correctly. I think that it just needs the 77MHz from the Colpitts Oscillator to work, or that also heats the lamp to some extend. The power consumption is bang on, 1,8A on startup, once lamp ignites ...
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Hello everybody, I'm the proud owner of a Rubidium 10MHz reference BALL-EFRATOM FRS . All nice and dandy, except for the ridiculous connector, a unholy bastard child between a DB15 and a coaxial connector, that has the designation: Cannon DAM11W1S. I found some on the usual suspects sites, but unfortunately got lost into the …
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Find many great new & used options and get the best deals for Ball Efratom MBU Modular Time Frequency Standard Generator Module 808-500-2 ^ at the best online prices at eBay! Free shipping for …
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In our final act at Stamford Bridge for the calendar year, Chelsea eked out a last-gasp 2-1 victory against Crystal Palace on Wednesday night.
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$ 1,600.00 1 in stock Add to cart Ask a product question Additional information Efratom FRT-H Rubidium Frequency Standard. Unit powers on and "stabilizes" after @ 10 minutes. Verified 5 & 10Mhz outputs. Unit has …
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Manuals. Monday 2nd July 2009, 21:51. The Efratom Model FRS-C Rubidium Standard. The Efratom Model FRS Rubidium Standard is a sub-miniature, atomic resonance …
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Rubidium Frequency Standard, Model FRK. This compact rubidium frequency standard is the commercial Model FRK, first made by Efratom Elektronik, Munich, Germany, and …
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Efratom MFS-286-2 Modular Frequency And Time System MRK MGPS MDC MBF MGP. Analogue Solutions Rim Shot And Claves Module R C 88 Concussor Doepfer T. Gibson …
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Find many great new & used options and get the best deals for Ball Efratom MBU Modular Time Frequency Standard Generator Module 808-500-2 ^ at the best online prices at eBay!
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Description: This compact rubidium frequency standard is the commercial Model FRK, first made by Efratom Elektronik, Munich, Germany, and later by Efratom California in Irvine, Ca. Gerhard Hübner and Ernst Jechart established the firm in 1971 and a year later supplied examples of the clock to the Naval Research Laboratory (NRL), Washington, D ...
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Buy Efratom MGPS Modular GPS Receiver / Controller and other Communication Frequency and Timing Systems from Test Equipment Center. New & Used Test Equipment Sales. Toll Free (844) 392-2698. ... Efratom MGPS products for sale at Test Equipment Center are thoroughly tested, and receive electrical and cosmetic reconditioning as …
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Top Left: Inside the enclosure containing the 10 MHz Rubidium frequency reference. The Efratom LPRO-101 unit is partially visible in the background, mounted to the lid. The LM2577-12 19 volt up-converter can be seen soldered to the circuit board mounted to the wall of the box. A closer view of the voltage converter may be found here.
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en/efratom modular got.md at main · jidafang2022/en - [time-nuts] Source of Rubidium Lamp for Efratom FRK. standardize、EFRATOM、DATUM10MHz MA 02339 USA Direct: 781-871-8868 Fax: 781-871-7412 CAGE Code: 639A3. Follow us · This is an Efratom / Datum LPRO-101 Rb standard and global navigation satellite systems ...EFRATOM …
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Hi, got a complete Lucent RFTG timing shelf on the cheap off the bay. It consists of two independent sections. A Rubidium Oscillator (Efratom FRS-C), and a OCXO Piezo Co. 10Mhz. Both units are GPSDO disciplined by the Motorola Oncore radio included on the OCXO side. all was well until the Rb side died, well, for the most part.
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BMI Surplus, Inc. 149 King Street Hanover, MA 02339 USA Direct: 781-871-8868 Fax: 781-871-7412 CAGE Code: 639A3
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Buy Efratom MFTD Modular Frequency & Timing Distribution and other Communication Frequency and Timing Systems from Test Equipment Center. New & Used Test Equipment Sales. Toll Free (844) 392-2698. ... Efratom MFTD products for sale at Test Equipment Center are thoroughly tested, and receive electrical and cosmetic reconditioning as …
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March 25, 2022 Internal Overview Time for another Rubidium Standard Teardown! This one was supposed to happen a year ago, however I completely forgot about this unit. This is …
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Find many great new & used options and get the best deals for Ball Efratom Modular Frequency Standard System 808-400-121 w/ MBF MRK MBU MPS at the best online prices at eBay! Free shipping for …
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The Efratom MFS (Modular Frequeny Standard) is a configurable frequency reference that I think was sold into telecom and land mobile radio systems. I recently acquired one at a hamfest and had a chance to explore it. The unit I have is a model MFS-300U-01 and has a 1996 date stamp.
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Efratom MFS-286-2 Modular Frequency And Time System MRK MGPS MDC MBF MGP. Analogue Solutions Rim Shot And Claves Module R C 88 Concussor Doepfer T. Gibson Maestro MRK-4 Rhythm King, Drum Machine, Modulation With Foot Con. Arp Odyssey Black Gold Mrk 2 Serial Number 0268 Vintage Synth With Fligh.
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The Efratom MFS (Modular Frequeny Standard) is a configurable frequency reference that I think was sold into telecom and land mobile radio systems. I recently …
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Leaving Rockwell in 1978, Fruehauf served as President and CTO of both the German and US-based Ball-Efratom atomic oscillator company till 1995. He became Group Vice President and CTO at a Defense company, Alliant Techsystems (ATK), beginning 1995. ... The camp had 10s of 1000s of German prisoners and it became clear that if you got …
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Find many great new & used options and get the best deals for Ball Efratom MPS Modular Frequency Standard Power Supply Module 808-460-5 ^ at the best online prices at eBay! Free delivery for many products! ... delivery windows and return policies at a glance. 3 of 3 Got it. We've made some improvements Explore our new layout with larger ...
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Buy Efratom MDP Modular Digital Pulse Module and other Communication Frequency and Timing Systems from Test Equipment Center. New & Used Test Equipment Sales. Toll Free (844) 392-2698. Home ; ... Efratom MDP products for sale at Test Equipment Center are thoroughly tested, and receive electrical and cosmetic reconditioning as needed prior …
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Actually, I have purchased this "Efratom EFR receiver controller" from the auction site. It was originally tuned to the British LF radio standard MSF (60 kHz), so I was little bit surprised how the unit got to Czechia. After some reverse engineering efforts (there is quite detailed manual for Efratom FRT / FRK on the web, but nothing on EFR), I have …
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Modular Frequency and Time Systems (MFS) MBFO (101) Frequervy Tlrnc System (MFS) provi&s time and frequency industry with an innovative way to a host of standard …
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The effects of nuclear radiation on rubidium gas cell frequency standards and components are presented, including the results of recent tests where a continuously operating …
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Datum Inc., a manufacturer of frequency products and timing instrumentation, said Friday that it has signed an agreement to acquire the Efratom Division of Ball Corp. for $26.5 million in cash and ...
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Some time ago, I got Efratom/Datum GPS-FC item. The apparatus itself looks like good quality weather-proof aluminium case with embedded GPS antenna. ... SKU 2816 $999.95 Novatech 1450A Rubidium Frequency Standard w Efratom SLCR-101 Oscilator SKU 2817 $999.95 Ball Efratom MBU Modular Time Frequency Standard Generator …
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