[ present & archived diaries ]
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- 02 Jan 2008
HV and fils were off.
- 14 & 15 Jan 2008
Started putting in 2A HV fuses instead of the 1A fuses
I had inadvertently been putting in. The 1A fuses are
probably the cause of the frequent fuse blowing.
- 28 May 2008
Found the floppy drive won't work.
Replaced it with one salvaged from a Tci compter like dynamite.
- 25 June 2008
HV and fils off: HV dump while testing papi3
cross-modulation experiment. Burning smell !.
- 28 Aug 2008
Removed HPTX: All varistors bad, also the wire-wound
resistor with the centre tap was half burnt resulting in 500 Ohm instead
of 250 Ohm.
- 01 Sept 2008
Put repaired HPTX back. Discovered R17 was burn't
- 17 Nov 2008
The dynasonde clock was about 26 mins late between
presumably about 15-16 UT on 16 Nov to 08:00 UT 17 Nov. Freq ref (5MHz) from
EISCAT was probably tampered with.
- 31 Dec 2008
HV went off between 03:00 and 03:06 UT.
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updated 13 Apr-2010