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Very important and useful information was obtained from the chief engineer in the producing company of our X-Ray system last night, but for this indispensable factory internal know-how, it took me several days to come the destination for repairing this machinery. 8A fuse was checked last night ascertaining the connection, but 10A fuse opening is the criminal of the dysfunction this time probably caused by the power transistor shortening, one or more in 8 pieces, so the semiconductor replacement would be required. If the fuse was connected, it's very doubtful that the main part of radiation gun should be broken. In order to do that any specific measuring device is not necessary but only a simple circuit tester is enough, just see the connection open or shortened between three terminals on P-Tr.
24 years has passed since this machinery had been produced, so the same semiconductor would not exist in the market, but there should be any alternatives for the replacement, check the datum sheet carefully after coming across with the parts actually. Also he said in addition, 250V high voltage condition with thunder attack is dangerous enough to stop my heart's action and to take me to the Heaven, sure!

X-Ray system for our business became out of order after 24 years use the day before yesterday as if God says now is the time to change into newer Digital system? I know that the replacement of the machinery should be done sooner or later in very near future, but I'm going to try to repair this one if the difficulty might beyond the competence of my engineering skill especially internal electric circuitry including high-voltage one. I must be careful definitely enough not to appear myself on the news paper, yes, death by high voltage chair in US Al Capone period.
Equipment surrounding me breaks one after another these days, how come?
According to the information on the display name of the board, the technology of Finland company is introduced inside. Anyway, my free time this week end should be fully occupied by the maintenance work on this broken machinery without any doubt.

I enjoyed modifying and adopting Minolta TELE-ROKKOR PE 200/4,5 old lens onto Canon EOS Digital mount yesterday. After establishing these procedures, I do not find out any reason to throw away this marvelous lens on earth. Though disadvantage like darker F number 4,5 and longer closest distance 2,5m as this one has, on the other hand, smaller barrel designing and shorter TELE lens element including a piece of aspheric one designing are somewhat advantages so I regard.

As written in "Leica Lens Manual", heavier and bulky lens has unavoidable tendency of property not to be used so often leaving at home, APO Summicron 180/2 and APO Teryt 280/2,8 would loose their opportunity to be brought out because of heavy weight, both of them weighs over 2,5kg like a military M16 rifle. So, this new comer would be taken out with me from now reminding me of the necessity of a tripod equipment for longer focal lens than 135mm avoiding camera shake.

EOS body cap is cut into two pieces to utilize bayonet nails and attached on to an original Minolta flange surface with acrylic resin material. The inevitable flange-back discrepancy of 0,5mm shorter is compensated by adjusting the helicoid ring making it at posterior position in combination with focusing ring to establish the infinity position.

Arrived Minolta MC TELE ROKKOR-PE 200/4,5 old lens has fully disassembled for maintennace and adaptation with sine arrangement on Canon EOS Digital formatting image. This lens has some specific lens element construction, a piece of aspheric one is equipped inside, but is also unpopular because of relatively longer closest point, 2,5m and darker 4,5 F number. Consequently, contracted price was only 500 yen and shipping fee was 680 yen, 1,180 yen was the total expense, shipping fee exceeds it's original one, it happens often the cases. I feel sad that excellent old Minolta lenses are thrown away at junk prices these days because of the reason of incompatibility on recent digital formats. Incredible efforts must have been made at that time by the factory lens designing engineers.

Though my way of establishing the compatibility on EOS mount might require some technical expertise and special adhering material, I hope many enthusiasts in this hobby field would try to do the same as I'm enjoying to survive many buried MC and MD lenses now.

I have overslept myself this morning getting up 1 hour later than usual without any specific reason just because of cold and dark winter weather. According to the degree of adfreezing on window screen BC7 is chosen for a means of transportation these days, depending on the parking place. Just a bit lack of steering stability make me feel some necessity to check it's wheel alignment and axle constructive geometry once more again. Now is the time for precise checking on them, because the deformable rubber parts causes discrepancies on the alignments gradually. In order to drive an automobile comfortably, this kind of periodical checking and adjusting efforts are indispensable.
Anyway, what must be done must be done, however troublesome it might be.