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dl.ORAJIOOM FOR Rl.CCIU>s Meeting on SIOROD held 6 IOTeaber 1946 

J'RFSEIT a l>r. A. Sinkov 

Colonel I. Kulm 

Lt. Col. P. s. letf' 

lla~or J • I. Wood 

Captain 1f. C. l'&ehcoe 

Lt. W. H. Cattq 

llr. w. 1. l'ried:aa.n 

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Jtr. lark Rhoad• 

Dr. s. lul11-ck 

Jlr. B. L. Clark 

Jlr. Leo Rosen 

mr. C. R. Deeter 

llr. !llZ'll. Lander 

lJr. Sinkov opened the aeeting b;r a1v1.Da a brief hl1ta17 or the situation 

ooncern1Dg SIGROD. ••had orieina~ thoupt ot haTinl Tele1:1J>8 Corporation build a tn hundred copies or our T81"aion (SIGROD) ot the l&VT'• CSP 1700, but 

we got f'rora tho a.n eatiste which waa ney hi.P. 'f•l•VJ:>e •tatnenta aa to 

rate or production were also a.1aooura11nc, •• we would ban no •chines tor 

ah: ~the art.~ the algning ot a contract. The •tter ot Telet,pe waa conaeq,uant17 held in abep.nce. 

In the moantilae, we had 1ood ind1oat1ona troa the lla'Y7 that '\hay could pat 

their l&boratoey to work tor ua. The l&VT aaid th8J' would •ke a r .. hundred 

JIOd1f'Ud CSP 1700' • (SIGROD) at a price which•• leH than halt ot t.h• Tei.-

type quotation. lowever, a.t the the the 1&"17 g&ft m the otter, we had bee 

abort or t'tmda. llelqa 1n ptting th• :a.ece1sa17 110D.e7 bad held up tJie prograa 

tor a J1011th or two, e.nd now tJ:lat •• ban the mDDflT we !illd tbat the 1&"17 1• not 

ill a position to sake the machinaa. Captaili Saith bas intoraed ua that the 

l&Y,y baa now completed th• desip. ~ the JIOditied SIG.SA (CSP 2900) and the 

l,Aborator)r 1a 101ne all out o.n the production o:r tb.la dnice. Thia production will utlliH all or their taoU!t1fle tor the next two 7ear1. It was f•lt that 

to return to Teletype Corporation wou.14 be a aiatak• as there were et.ill the 

problns or coat and del.&7 and th• complloa ti.one ot •ld.na contracts wl th 

prbate coapani••. 

Xt wae tinallT decided t.ba.t we would -.ke the •chine• at tb1a A1enCJ• 

An aase•bl.7 line procedure could be uaed with the personnel in llaintenanoe 

I.ranch. The present provam o£ rehabilitating SIGABA would be teaporvll.7 

auspended. It 1e eeU..ted that it would be possible to turn out approdateq '° 8XGROD per llODth and ht tho end or the fiscal rear &n aaple nwaber ot 

•chi.nee ahoul.4 be aw.llable tor the ETO. laiv" people 1n Maintenance Branoll 

would have to work overtt.a and an e.eaurance baa alreac.!J been received. troa 

Col.cm.el Ba.ye• that overtiM wUl be approYed. Dr. Sinkov continued to •7 

be felt that ..,..n with Oftl"t.1-e, the 8"1'81ltual eoet of the •chines to .as.A. 

woald not be 8.1J3" peater t.ban tbe llavy price. There are H'f'eJ"a.1 proble:as 

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whl.c."h will have to 't-e coord.inatet\. ~e would continu'!.lly be ue1q the facilities or R and D uiviaion, and 1n }Alrticult'l.r the »-.chine Shop, but it ahoul.d 

not int.8'1'.'tere with tho p:"fll!!!ent !unctions or fl and D Divbion. Sufticient 

help "or this project could probably be obtained in overtime work. Tb.ere 

wilJ also be certain probltiJms of i:rocurei::ient • 

.i 11:peclal basket will be re 1uired for the Siu.ADA c:ba!lsb &ni.l ti-~re are 

some r:i1.nor mor11fi~t1ons which •ill havo to be ~j•. rolonel ln}m rer-0rted 

that the Maintenance Shop ~ould dtart at enc~ t~ tara the ~IvABA'a apart for 

rftcon1!t1nning and r•bt...ilding 'Up to thtt point at wM eh the nr.r J:&rts 10 in. 

Certain :rerta will have to be made and others met be altered in different 

we.;ya. Side t'nulee 'BU.8t be cot and red.rilled. .l.ctuall.Jr there •1ll be ver/ 

tn new J'flrlB •de in R and D D1T1Bior:. However, we would lik,. to ha.Te quite 

a bit or the <8r1ng YOrk done thsre. 

Dr. SinkoY il,gE,"l!lt .. d that 1 t would be a good idea ir Hr. Ro•f'ln could 

see what the parts are 11\e. Carte.in W&s~~09 e~1d t.hyre were only 14 new ~s 

a.ltoatetht"r. Ur. Rosen aeked if any o"' the p!'lrtn to b~ •chined were cl.aenU'ied, 

and if not •hy all the ... chining conld not be. donA outside. rolon~l ruhn 11aid 

that all or the sis.chine wor1' could be dur.e arr tba Post 1n ari.:y shop available. 

Di. 151.nkov explaine:! that ... e would. li'lcfl to do it in the WS.f wbic:t- would ca.use 

t.be l"'ant diari.J:ption in the rrogram. llr. Rolien e~!C" t.bA t the gra.de of work 

d.orut oubide •ou1d be better ae they have the best m&ch1n1sts. The MD 1n 

the R and. D Shop an beiDi ueed for llO<"k-up for the KX-519 ani the IX-508, etc. 

»r. Po9en said, however, that 1! Security Division !'elt the.t overtime would be 

authorbed, he relt that the un would be wll11Dg to put 1D the overti.ae to do 

the job. Dr. Sinkov aeeured the voup that Colonel Bayen had ea.id that Oft.rtime wauld be B.}Jrrov~. A detailed ~MJ..rsin o!' the i-rte requlrftd. 1 plus how 

much work will need to be done, will give n. be~ter appreoiation nf how the 

R &I~ D la.chins &hop cou1d cope with tho pl oblem. 

'!'hi!! firet job ie (01.ng to be f1guraJ with B. go'tl or 400 !:111c"hine11 The 

aide f"ram~1s are the controllinG parts. Wa cannot give al.l J..,'YJ to R and D 

Divbion at the AJl8 tille I• oan probably iive thft 25 of ea.ch •id• iJ!IM .. 

41.at.el,- by" taking f'rom. new pa.rtll in atock and toll"9' up with 25 more -ntq 

dhort:Q', but it will be hard to 1et more than '° ahead at &11¥ tiae. Thie 

w:S.11 aea.n that the llaintenant-e Shop will haTa 25 •chinee l.&)'1.nt; around 

diaae ee:mbled.. 

Ther'l are any unclass1~1ed pe.rta ?thich are deeigned ~o be l!ltamped, cut 

down an1 worked. R and D J1vb1on ha.ti a. punch press, but theee pa:rts require 

& 11Uch heavier praes. Colonel Xuhn r"ported that there was a company 1n 

!alti110re t..hat would do this work epeed11y. Colonel tubn at1ked Major Wood 

lt it wouJd be necessary to IO thr0114Pi the proceee ot 1.ettin1 a contra.ct 

tor such work. Major "ood replied that he could eee no r.aeon why' 1t would 

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:not be posa1ble to put !n a pul"chaee request.. !he •twr could be diaousaed with 

the Signal Corp•. 

Colonel luhn aid that the 11&118 quest1on would arise with regard to the 

pl.&tin& or parts. le Rid that it na desirable to aem out parts ror 50 

91lchinea at a tille and h• did not want to have to make up a purchase request 

Mcb. tillle parts were aent out. Thb ps.per work, if handled in a noraal -.nner, 

•wld take longer than the tbte available to 111mutacture t.'ie •chin••. 

Ir. Rosen aaked U' the •tter of the policy on the production of the 

equipment had been settled, aa there are rules, reauJ.,ationa, directives, and 

'ftU"iaue statements about the <lovenment doing its own -.md'acturin& work. 

!hie atems ceneral.!T from the idea or tbe Ooverrament 101.ng into competition 

with prlnte induai;J7'. Dr. Sinkov aid th• tact that this 1• only a ainor 

JIOdifiaation or a u.chine aight get around 8.J17 such rules. 91". Rosen eaid 

he telt that matter •hould be l.ooked into and the policy etated clearly in 

order to prevent later repercu11eion1. llr. Lander aa1d that inf'•rence aight be taken t'rom the lavy policy. Lt. Caf'fey pointed ont that it was 8'\lggested 

that .IS.A have a pl.Ant to •ke all cryptographic •chines. Colonel Kuhn •aid 

tliat IS! bad tried to let contra.eta outside tor aoditication and the estimates 

were Tttry prohibitiTe, and he telt the manufacture of SIGRoD at JS! juatifiAble. 

llr. Fried.1M.n a.aid be telt that aince the Teletype Corporation eat1-te waa eo 

-.xotbit.ant and this wa11 an ••rcency aituation ASA could build the •chines. 

This 'ffould cut the eost as well as the important tiaa alement involved. 

Captain Waehc:oe said he would like to have Dr. Sinkov na111.~ a com.1.ttee 

to 10 to worlc on the llOdel ot the SIQROD alter gettiq it back from the Nav 

to consider the engineering details. Dr. Sinkov na.ed Mr. Rosen and Mr. Deeter 

o! ft tt{ld D DiYi•ion and Colonel !uhn and Captain Washcoe ot Seeurit7 Division. 

Be 1&1d the committee ihouid-e:nmine tJie peirta to aee which ones are needed, 

tho ta.ska involTed, and. where and how best ms.de. Captain Waehcoe recommended 

that Colonel Xubn be made Chairman of this CODIP!ittee. 

Captain Waehcoa point~d. out that the production of SIGROD •ill not necea-

#Uil1' mean that the SIGABA rehabilitation will come to an end. 'l'he withdrawn 

Steu!A•• •ill be :rehabilitated aa they are rebuilt into the SIGROD. Colonel 

luhn said that parts were the •in f'actor. captain Washcoe aa1d that any 

parts made outside th• Agency would bo -.de 1n lot.e or 1,000 each •o it will 

not be nec•ssary to reorder t.11.e parts later. This will all°" 10 per cent ror 

•pare pe.rts. nr. 51.nkov eaid be :f'elt th1a •hould be done in rlew of the raot 

that tund11 are available. Mr. Lander 8'\lgieated that a vocy caretult euritey be 

made ot the upenees involved and an oYer..all p1cturo preeented at one time. 

An approwl ef' the over-e.ll cost should be obtained to Jllflke sure tho t'unds 

are an.ilable. 

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Ir. F'riedJla!l aeked if the Navy was 101.ng ahead on their moditieation ot 

the 8IGABA. Dr. SinkoY ree;ed that C&ptain Saith bad reported that the 

1110d.U'1cation program wae a t to begin. The A.rsJ' ie not going along with the 

lavy on thie 110dification. lir. Cl.ark 11&id he !elt that the 1&'9)" 6.lld the 11'"llT 

ahould get together and decide to both go alon& on the idea or to drop it, 

rather than going in oi;posite direotiona. Dr. Sinkov said it we had eone into 

the ol'igina.1 program ot tha CSP 1700 with the Na:r; we aight not have the pre1&ent problem or eld:arking on a program or illproYing the SIG.A.BA. Mr. Rhoads 

auggeeted. that ASA get tougl-t and bring the •tter up before the Joint Research 

and Development Beard tor aome joint e.otion cm this C17Ptogra.phic program. llr. 

i'ried».n &eked where intercommunication would be if' the 'N&T,Y brought out the 

new device. Dr. Sinkov uid that when the Navy made the deoieion to embark 

an the program 1t was decided to haye the new •chine operate either aa the 

CSP 2900 or the 8IG.ABA. The Navy intende to spend all or ita money thia ,..ar 

tn build UP. a big enough 1Sl4ppl::r so that the CSP 2900 could be called into use 

at a 11oment1s notice. Ir. Friedan ssked what our et.f'orts had been to get toe-th.el:" with the Na"f)'". Dr. Sin..'ltov l"eplied that in a letter from Security 

Division, Captain Smith waa given the final l'"eport on our aecurity evaluation. 

It was incUcated that our atud.iee had proved that the modii'iecl machine crl})toP"&phi<:'&l.l.y- was somewhat more secure than the SIGABA. The covering letter to 

Captain Smith aoc.:?ompanying these reports, 1ncl1ca.ted that it was the feeling 

o.t' this A,eency that rather than •pend I10J1ey and time required tor building an 

illpl·oved SIGABA, it would be better to Bp81ld tiae and ertort on a wholq new 

and d1tferent machine which would be more desirable than the moditied SIOABA 

tor uae 1n the tuture. Dr. Sinkov •aid that regardless ct what ia done with 

tbe CSP 2900, the Arsq progrh tor SIGROD is to continue sire• Colonel Ha;yee ia very llUCh concerned with the physical aecurit.,- ot SIGABA in Europe. Colonel 

Jla7es wants to withdraw the SIQABA and replace it b;y the SIGROD. Colonel luhn 

aa1d if n did not ao along with the Ha17•a aodii"ication ot SIGABA, two mchinea 

would be need.ed.-one tor .Arlcy'-Navy comaunications and a dirtarent •chine for 

combined communications. Be ea1.d he felt this wa1 aomething that ehould be 

ironed out now. 

Ir. !'ried!lllln asked 1! there n.s ~ mone1 tor an Artrq production of the 

CSP 2900. Colonel l\Jhn replied that adding the nitoh to the C.SP 2900 would 

cost l••• than flO per •chine if' the llOdil"ication were done with the rebablli· 

tation proara:m. Dr. Sinkov reiterated that Colonel Hay¥• did not think it 

zieceasary. Ir. Priedmn aaid. he would tallc to Colonel Hq'ee to aee it there 

was &117 hope ot changins hie views on the matter. Ten dollar• per machine, in 

the r9..l"labilit&tion program, 1• not much, and it llight be worthwhile. It wae 

admitted that we could rehabilitate them here &t a Tery 1low rate. Mr. Friedman 

then a.eked it the improvement in the CSP 2900 OYer the SIGABA waa suttictent to 

warrant our going to all thia additional construction and what we would pin. 

Ir. CJ.ark ea.id he was not convinced there n.e liZf1' great pin. Colonel luhn 

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iiiiiiiliiiiiiiiiiliiijiiiilllllllli ... _._._._._. .... ~ ID:X7o271 

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aid it ....,- not bo the be•t or the w!:seat move, but we m7 be torced into it. 

llr. l'riedJDUl again aa1d he would d1ecuae the •tter with Colonttl Ba19a. 

Dr. S1nkJ>v adjourned the meeting recol!llllending that the committee meet a.a 

1oon as the SIGROD in returned f'rom. the Ha vy and prer.are a prograa toward the t Qe&in.~ing or the actual eon~truct1on of the SIGROD. 

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