bids are invited for 1. edt make low voltage card section - m/s edt make low voltage card section- type- edt/ erm/ ps 01 , 2. edt make high voltage module type - m/s edt make high voltage module type- edt/ erm/ hvps -02 , 3. edt make area gamma radiation indicating meter with auto ranging - m/s edt make area gamma radiation indicating meter with auto ranging type- edt/ erm/ p-447- rev-4 , 4. edt make mains transformerwith line filter card - m/s edt make mains transformerwith line filter card type- edt /lvps xer-447 , 5. edt make detector assembly - m/s edt make detector assembly ( i ) without pmt with na(i) crystal size- 2 x 2 and with ss-304 detector housing containing pre-amplifier and voltage distribution cards, schmit trigger card, push to check pre-ampr card. (modified version) ( i ) without pmt with na(i) crystal size- 2 x 2 and with ss-304 detector housing containing pre-amplifier and voltage distribution cards, schmit trigger card, push to check pre-ampr card (modified version) , 6. edt make photo-multiplier tube - m/s edt make photo-multiplier tube with na(i) crystal , size 2 x 2, make- bicron / scionix scintillation detectors , 7. edt make 6 digit degital electromagnetic counter 12 v - m/s edt make 6 digit degital electromagnetic counter 12 v total quantity : 32