Although radiation implosion weapons could be developed without testing, they would tend to be large and heavy and would perhaps be incompatible with Israel's available delivery systems. Bomb components made of plutonium, lithium-6 deuteride, and beryllium are fabricated in level 5 of Machon 2. They are transported by convoys of unmarked cars to the warhead assembly facility, operated by Rafael north of Haifa. With an arsenal that is quite possibly in excess of 100 weapons it is likely that some of the nuclear materials would be applied tactical weapons. Boosted bombs are doubtful, as are neutron bombs, due to problems with development in the absence of a significant testing program.
Artillery shells are also doubtful due to their wastefulness in plutonium.
Tactical weapons are probably aircraft or missile delivered, or are pre-emplaced mines. They place the current arsenal at about 200 weapons. Several reports have surfaced claiming that Israel has some uranium enrichment capability at Dimona. The scale of a centrifuge operation would necessarily be limited due to space constraints, and might be focused toward enriching depleted reactor fuel to more efficiently use Israel's uranium supply. A laser enrichment system, if developed to operational status, could be quite compact however and might be producing weapon grade material in substantial quantities.