Abstract

Amplifier failure traced to burned out heater element in traveling wave tube (Hughes 774H). Tube failure associated with failure of grid pulse-upboard on amplifier mainframe (Card M0002). Problem traced to comparator on receiver end of optical fiber link that couples an amplified TTL signal to the grid driver. Comparator is a discontinued part; supplier found. Amplifier repaired. Installed a 15 year old tube as a temporary measure.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
2P41RR002583-11A1
Application #
5224127
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
11
Fiscal Year
1996
Total Cost
Indirect Cost

  Publications

Colaneri, M J; Vitali, J; Peisach, J (2000) Electron spin-echo envelope modulation study of multicrystalline Cu(2+)-insulin: effects of Cd(2+) on the nuclear quadrupole interaction of the Cu(2+)-coordinated imidazole remote nitrogen. Biochemistry 39:584-91
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Coffino, A R; Peisach, J (1996) Simulation of Mn (II) EPR spectra using a full spin-Hamiltonian approach. J Magn Reson B 111:127-34
Parast, C V; Wong, K K; Kozarich, J W et al. (1995) Electron paramagnetic resonance evidence for a cysteine-based radical in pyruvate formate-lyase inactivated with mercaptopyruvate. Biochemistry 34:5712-7
Bubacco, L; Magliozzo, R S; Wirt, M D et al. (1995) Structural characterization of mononuclear Cu(II) and its nitrite complex in the active site of Carcinus maenas hemocyanin. Biochemistry 34:1524-33

Showing the most recent 10 out of 41 publications