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were a180 inatructed 1n the manutaoture ot dalay m8ohanlam.
to be made trom ••• 1ly obtainable material.. The saboteur.
wer~ told that the prot ••• 16nal17 made varlet!.a could be
used with advantaga on shipe, and that the explo8ive should
be plaoed 8K8in!t the 8tda ot the 'hl~, below the •• ter-11ne.
The tollOWlna: tnt. ot hom. made delay
meohani.ma .era d~.orlb.d and recommended :
(.) An ordinary 6-4a7 clock 1, remOTed trc:a
it. 0 ••• and au tlectrI0 1 •• 4 tra. ona terminal ot .. torch
baU.ory attaohed to the oantra ct the 111&10. spring. When
tho main aprins 18 tullr unwound the out,ida ot it 18 ..
certa1n dietanot ."7 trom tho centre. Withtn t.hl1 radlue
but not touching the outs ida or the main .prinK When wound
up; another allctrio l •• d 1a attaohed to .. rubber plUS 10.
auch .. poat tieD that. when the eprln.a unwind. and _%panU 1 t
will touch tbll lead, tbue malt1na oontact bttwem tbe .rin
attaobed to tbe oentre ot thtmai~.lprina tad the outlidl one.
Throuib thie, an eleotrlO o1ro\l1t oan bt oClllllJlli ted an.t! • bomb •
tired ( ... til I).... ·· . : : "
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(b) A •• ll. hole 1e 4r1Utd.in the cellul01d tron\.
at an ordinaIT pocket ntoh.'(.nJ other, unbreakablt lulIltanot
exoept 11"1 Will 40), tba bo~,'belna oppoaltt .6 o'dlook. A
small met.l aor .. i, ine.rte4 1n tb1l bole 1n wch a ftT that
an eleotrlc load oan bo dtaobe4 to tbo oubldt ot 1 'r ,whilt
the end ot th •• orn 1e ua.r tnOU!lb to tht olodk -tao. ~o .
imped. the bour band Whtn it oorae. round. Anotber .l.otrio
lead i, 'conn.oted to the Wia4.1' at the •• tob, trb.1dl 'ba. ot
OO\11".e an eleotrioal oClUlIOi!011 With the band.. Th. ellotr10
oircuit i, oomp1.ted end tb, .1.otr10 1e.41 attaohed to the
aorew .. nd tbt winder ooftneoted, Whtn ,the bOlU" 01' IIl1.nuia hand.
hOweT.r lona • dele, tbt leboteur rt~u1rea, ,ttl round to the
lorow. Tht .aboteurw wera adT11t4 Dot to lat tbil ttJPI ot
dell,. mecblnlem tor mort tban alaTeD. bour.. Thi. 4 ... 10, i.
regula r17 Ule4 b7 tb. OenaD Saor" 'Ber't1ot .nd bat ' OUt dillac1vantaie.
That. 11, it tb. bour or minuta b.nd ~ U " ooyer.d
Witb lwninoua paint or etwltl, el.ott1Pal.oonheotl'bn~Ch"
not be ocmp1tted unJa •• tbt band. 1fert .oraptd tir.t. '.
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(0) A tea' tUbt or boU~ il 'nlled Witb dried
peu and ... ter. A 100 •• cork 41.0 in. tbt otntr. ot whloh
ie a bra .. '01'''' noa.t. on tb. lurt.Ot. A drt 1thloh pUlet
out ot the te.t tube or bottle to one ttrminal ot • b.tta1'7.
is attaobed tb t~ •• orn. Tbl. Wire p ••••• out ot the top
througb a holt in the atopper or oork Whioh titl tilht17 into
the neck.
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In th1' latter ttopper or.oork th.re it al1Otbezscrew,
attached to whioh il an eltotr10 l .. d. Th. pea • .
expand thrOUib the ablo~tion ot ... t.r,' toroinl tbe 100"
oork upwar41 until oontaot it made bet.een the Icrn 1n"'the
~ tter and tha~ in the oork or ltoppar in tb. 6eok. ThUI,
the electrio oiroul t 11 oompleted. '!'be dela7 4ep6nda upon
the atz, at the teat tuba and the i:NII:I&)~ ot 18a. (.~e ti,.,).
(d) A tin can part17 tilled with .ater h ... a .
amall hole drilled in it. bottom. A pUoeot uninaulated
Wire, to Whloh i. oonneoted enltlectrio lead, 1a etretohed
aoroaa the top ot thie can. A oork t1oat' on the surrao.
ot the water and attaohed to thla oork i. a piece ot 1naulated
wira which extenda upWard.a tbroush a 10op..ln tbe un1nsu~tad
wire atretchad aoroe. the top ot tho oan. The ineulated wirt
attachad to tha cork is bared hliher up ao that a. the .ater
drips out ot the can and the oork deecenda on the surtace ot
the water, the bared part at the Wire .ttaohed to tba cork
cornea dawn and eventuall,. come. into oontaot with tho
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