SCIENTIFIC ABSTRACT PABIJANEK, H. - PACAK, M.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001238720001-7
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: August 1, 2000
• Sequence Number: 1
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

FABIJAIEK, Hubert,, inz.
Utilization of tl~-a working tim of blast furnaces* Wiad hut
15 no.10:297-301 0 159.

pAB,j M K, Hubert, inz.
cing time Of Open hearth f't~"c
lgt,,,Zat:Lon of the vorl '59*
Wiad hut 15 no.11/12:350-354 "-D

.. -
.1 -Ie Utilimtion
L' mtallurgy*
ins.
of the rollar working time in the iron and steel
Viad but 16 ngal-.17-21 T& 160*

PABIJANM, Hubert, inz.
Utilization of tiT*.e and -last furnaces, Wiad !rut 18
_qhut,down of7
no.1:7-11 '62.

PABIJANEY,, Hubert, inz. cal and operational doculaeatation, Przegl
'-~~e aqua ~YF-O-T-t-e-dh~?log'
techn no. 28:4 15 JI 162-

pABI,TAM, Hubert, inz.
. Przegl teChn no#32:1.,5 12 Ag '62.
Caring for durable means

FABIJAZK,, Hubert# inz.
of repair anterpri.... p,,,gl techn
Produetion capac
no.34:3.4 26 Ag 162.

PABIJA.IZK, Hubert, inz.
Lubrication marme ement; lubricationy an important problem in
ihe use of machinery a~d equipment. Przegl techn no.42.3,4
21 0 162.

PABI.TANEK.-Hubert .
Development of specialized repair bases in industry* Przegl
techn 1041 no.3.1:4 1? Yr 163,

I
1. PISSCHWE, V. M.; YANSON, F. A.; KISEEM, K. N.; PABIN. A. 14,
29 USSR (600)
4. Milling Machinery
7. Cast grinding balls, Lit. proizv. No. 5, 1953.
9. Month List of Russian Accessions, Library of Congress, April 1953, Uncl.

USM/Ruclear Fhysics C-5
Abs Jour : Referat 2hur - Fizika, No 5, 1957, 11248
Author : Parfanovich, D.M.) Pabin, H~Y,, Semchinova, A.M,
Inst : Not given
Title ; Interaction of Nitrogen Nuclei With Photoemulsion Nuclei.
Orig Pub : Zh. eksperim. i teor. fiziki, 1956, 31, No 2, 188-193
Abstract : A study was made of the interaction between nutrogen
nuclei, accelerated in a cyclotron to 115 Mev, and the
nuclei of the Ilford El photoemulsion. The dependence
of the range on the energy, obtained experimentally for
nitrogen nuclei, was used in the processing of the re-
sults. 25 square cm of the emulsion were scanned and
198 interactions with escape of charged particles were
observed, of which 70 cases were attributed to the in-
teraction between the nitrogen and the "heavy nuclei"
Card 1/3

PABIS, S. p poriicznik neitigator
I---------
Repeated landing approach in dif-ficult atnosp'Heric corditjli~=S
0
with the use of RSL. Wojsk przegl 13 no.11:2/-26 F

PABIS,, S.
Chaffeutter for cutting straw. p. 21. (PLON. Vol. 4, no. 11, Nov. 1953)
so-z Monthly List of East European Accessions, L.C., VOL. 3, No. h, April, 1954

Researches on the drying of heaped gridn by blowing unheated air through-itt P. 61.
(FOCZEM NAUK FOUNICZYCH, Warszawa, Vol. 66, no. h, 195k.)
1
00: Monthly List of East European Accessions, (EEAL), LC, Vol. h, No. X, Jm . 1955,
Uncl.

FAFARA, Roman; PABIS, Stanislaw
Development trands in the technology of grain drying and
storing in Poland. Zesz probl post nauk roln no. 44:257-292
164.
1. Institute of Mechanization and Electrification in Agriculture,
Warsaw.

Distr- 4E2c(m)'
Va==i
Cris fien of
L--ammilm and o de. TMIJE
Che
rjemyl
sew in
CM1 Maori, gutj~ ttns y of IsAirring,
COOling v*JD-Jty, initU conen., and presrnc NBC, on
the crystn. Of NHCJ was -n--5tiguted- A Pilot 3-itzge mn-
tinuDw vacuum crystalll?rr Wa3constructed. lt-~ produc-
tion w unit Vol. W= .5 time3 that of bQtch cry3tal) ixen and
al;~Cr.w4d.tp 24--S kg./cu. m. hr.

PABISIAK Ani,-,-ni- IZB-fCKI, Jach; WARDYNSKI, C-rzegorz
. ~ --- - --,, -,~
+-natmen! of hslIu7 with a modified method of
Heuter-Mayt~ W'th evaluation of late results. Wiad. 'Lek.
18 no. 21:Suppl.-31-33 15 11 1 65
1. Z' I W(blalu ChIrurgichtiogo Szpitaln Mlojcklogo w Radonflu
(Qrdynator., dr. mod. A. Pabislak).

- FABIAKS H - KOTANE, S., red.
[Honut12ized reserves In meat productizp] Veimantotao rezerves
galas razosana. Riga, Latvijas lopkojAbao un vaterinarijas
zinatniski petnieciskals instituts, 1961. 12 p.
(MMA 15:3)
(POultx7)

C
~Px
BULGARIA/Synthetic Polymers, Plastics.
Abs Jour : Ref Zhur - Khimiya, No 19, 1958, 66o2,o
Author : ~ablov Sp.
Inst :
Title : Use of Textolite in the Textile Industry.
Orig Pub : Leka promishlenost., 1957, 6, No 11, 34-36.
He
Abstract : In the BFR, a wide assortment of details for textile
equipment is manufactured (transmission gears for machi-
nes, rollers for shock manhanisms and other) from phenol
textolite and textofibers. Some detains usually manufac-
tured from leather are also being repalced by textolites,
which is allowing a reduction of their cost and an incre-
ase of their length of service by 5-7 times. In the
dressing sections, it is proposed that the oak rolls be
replaced with textolitee, or with rollers lined with tvx-
tolite, since under the action of hot water and alkali
Card 1/2

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PAD- 0, 13. V.
N. V. and PGK,-jo-VS.',~~LA, T. Y., "Nechamization
EAE 0
.a~~
Materials in tne USSR31- No 5) pp 107-1U.. -
(14eteorologiya i Gidrologiya, No 6 Ilov/Dec 1547)
-
of t.Ile Handling Of HydrometecrolcEical
so: U-3218., 3 Apr 1953

USWGeophysics Mar/Apr 48
Weather
"'Work on the Subject, 'Weather in landscape,'" N. V.
U~ Pabo, 1 p
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64

CERNy, m.- PACAK, J.
a-a.WOtyj4-D-gjucopyranosylmer-
Production of 293y4p6-tetr -glucopyranosylmereaptide.
captan and of sodium and gold-
Coll Cz Chem 26 no*8:2084-2086 t61.
1.'Ifistitut fur organische Chemieg Karlouniversitaty Prag.

PACAK, J.; CERNY, M.
1,2:3,4-di-O-benzyl-D-ga:Lactopyranoad. Coll Cz Chem 26 no.9:2212-2216
161.
1. Institut fur-organia-che Gbwde,-Xarlsunivernitat, Prag.
(Galactopyranose)

PACAKy J.; CEM, M. ~Vi~~~- - - - -
--- --- , .-
Preparation and stiuct-ural test of --the */+,6-o~benzylidene-D-
giUctopyranose. CoU Cz Chem 28 no.2:541-544.:,F 163.
1. Institut fur organische Chemie,, KarlsunJ46rsitat, Prag.

GERITY, 14; BUBEN I I.; P-MA~, _~-
Syntheses with anhydro sugars. Ft.3- Coll Cz Chem 28 no.6:
1569-1578 Je 163a
1. Institut fur organische Chemie, Karlsuriiversitat, Prag.

PACARl JOSEF
Evalitativai organicka ana3.ysa. /Vvd. 12 Praha, Statni pedapogicke nakl., 1953.
217 p. (Ucebni texty vysokych sljo-1) Lqualitative organic analoysis. bibl., diagrs.,/
East European Vol. 3, No. 3 4
SO: Mont List of Accessions/ Library of Congress, March 195~, Uncl-

CZECHOSLOVAKIA/Organic Chemistry. Naturally Occurring
Substances and Their Synthetic Analogs. G-3
Abs Jour: Ref Zhur-Rhim., No 13, 1958, 4346-4.
lesser extent than HzSO4. The reaction can be
effected at elevated temperature (on a water bath,
until the sugar is completely dissolved) or at about
200, with a higher concentration of the condensing
agent and longer duration of the reaction. Isolation
of the product is effected by salting out of the
reaction mixture with a concentrated aqueous solu-
tion of K,CO_; and treatment of the acetone layer.
Formation'of by-products from I and II, which depends
on concentration of I and II, Fms been investigated.
A study was made of 'Ehe effect of different conditions
of the reaction on the yield of 1,2; 5,6-di-isopro-
pylidene-D-glucofuranose (III). The new method is
faster and of better reprcducibility than the previously
Card 2/7
CZE-CHOSLOVAK.IA/Organic Chemistry. Naturally Occurring
Substances and Their Synthetic Analogues. G-3)
Abs Jour: Ref Zhur-Mim., No 13, 1958, 43464.
described. Synthesis of I: a) a mixture of 4500 ml
ether and 600 g P;LOS-is heated to a boil for ap-
proximately 45 hours. Then, the ether layer is re-
moved and 1200 ml CHC1,3 are added to the residue.
After boiling for 5 hours the solution is filtered
and precipitated with 24W m3- of ether. The sirup
that separates is drawn off and heated on a water
bath., in vacuum, to 600 in order to remove the re-
maining solvents. Yield 330 g, n:CD 1.442; b)
2000 ml ether and 500 g P-Or are kept at about 200
for 5 weeks, with~shaking at regular intervals of
time. The ether layer is then removed and the crude
I is heated to boilinG with 500 ml CHCls. The re-
'~ulting solution is filtered and precipitated with

CZECHOSLOVAKIA/Organic Chemistry. Naturally Occurring
Substances and Their Synthetic Analogs, G-3
Abs Jour: Ref Zhur-Khim., No 13, 1958, 43464.
with 1500 ml ether. The re-precipitated 1 (420 g)
Pr&edures
is stored in a desiccator over HZSO4.
a and b were carried out using ether and CHC13 that
were not dried. c) see Steinkopf W., Schubart I.,
Liebigs Ann. Chem., 19PI, 424, 1. General method
for the preparation of di-isopropylidene derivatives:
The reaction was effected using a vigorously agitated
mixture of 1, anhydrous Il and finely powdered sugar.
To isolate the product formed on boiling, or by
shaking at about 2DO, in approximately 300 ml acetone
solution containing a maximum amount of 50 g I, there
were added 100 ml of aqueous solution of K COi (150 g
Kg,C0.3 in 350 ml water) and after a thoroj agitation
the separated salts were filtered off, the aqueous
Card 4/7
CZECHOSLOVAIM/Organic Chemistry. Naturally occurring
Substances and Their Synthetic Analogs. G-3
Abs Jour: Ref Zhur-Khim., No 13, 1958, 43464.
layer was drawn off and extracted three times with
CHC1.5 using 30 ml CHC1,; for each extraction. The
acetone layer was shaken with activated charcoal,
filtered, approximately 0.5 g DaCO.3 were added to
the filtrate, and II was distilled off. The re'si-
due was combined with the CHM -extract of the aqueous
layer. The Ba-salts were filtered off, the CHCl
layer was separated and the remaining aqueous layer
was extracted with 30 ml CHClg. The crude product
was recovered from the combided CHC1.)-extracts. Syn-
thesis of 111: 30 a I were shaken wAh 300 ml dry II,
10 9 anhydrous D-glu7cose were added, and the mixture
was heated on a water bath', with shaking from time
to time, until the glucose was completely dissolved

CZECHOSLOVAKIA/Organic Chemistry. Naturally Occurring
Substances and Their Wthetic Analogs. G-3
Abs Jour: Ref Zhur-Khim., No 13, 1958, 43464.
(3-4 hours). The resulting solution was treated as
described above. III was obtained with a yield of
56,11o, mp 106-1090 (from ether-petroleum ether), no
MP depression with an authentic sample. Synthesis
of III from 1,2-dso-propylidene~D-glucofbxmose
(IV): to 1-5 g I and 30 ml II was added, after
shaking, 1 g IV. After boiling (1 hour) the above-
described procedure was used to isolate III, yield
70%. 1,2:3,4-di-iscpropylidene-D-galactopyranose
(V): a mixture of 40 g 1, 300 ml dry II, and 10 9
D-galactose, was shaken for 4 hours at about 20-1, to
get V, yield 49%, BP 155e/10 mm, La7l-,"D -65-60
(c 1-2B; pyridine). 1,2;4,5-di-isopropylidene-D-
fructopyranose (VI): 12 g 1, 300 ml dry II and 10 g
Card 6/7

2.10,5- A tAinmii,! hvmc-r, circuit. Ille

The 4:ii-Cuil is a nct~v-clr% con-
5tin a wmammer and a reiii~or, R. coartctod

in F,;rm~ %v,'Ih the: heatcr, lht~ point b7otme
-,cn the ficater

arat R b,hig conwctcd to. gonthow i
a lappin am Former
flirwigh a resislor P. n,,- ,Nriton or vi, a-,:,at
analyred in &Iail and its performance j4 illtisli-ated
by a mumber of cxpcri!n-wnl curvc,-. The cincuil Can
-b~ u5cd to stabilize hemer ;n symnicit
'unplificri or, alrarnifively, t.) ccirlx-flutu . for
th~ initabilily caused lhc CU111,04 (if supjl~v % olcig--
Stb0k,AV,CZ,

PACAK, PL
E!cak. Iii Haml. 1. Feedback sUbilizer with the possibilty of over-compensat ion. p73.
SO: NDnth3,v List of the last European Accession, (EEAL), W. Vol. 4.
m. 10, Oct, 1955a UrseL

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_~7 621.316.722.1,
5748. CONTROL OF ELECTRONIC VALVES BY CURRENT
SKINALS. M.Packk.
SlAboproudt4)bvo~7WoI. 19, NO. 7, 09-23 (1958)..in Czecb
The principle of the cqpnt control Ina simple
by means of maspEtle fie Tbr xviagnettzing current) was applied
to a standard miniature output pnntode (type OL43). It was IOWA
that by placing the pentode Inside an inductance coil of 13300 turns,
the anode current couM 4e Amajitcut-off, if.the magnetising.
current was abolit 45 mA. no control prinilpli was employed to
--- ibilizer. Thlis consisted of a control pentods
design a current st
placed biside a permanent (biasing), magnet and 4 Inductance coil,
and of A pcnier pentode connected In series with the coil. The Input
of the blabilizer was connected a.cross an unstabUL&M voltage supply.:
-The dey
Ice produced a 30: 1 Improvement In the current stability.
W It In thought that-by designing a vVecial current-control ve, !M
an
performance ot the stabilizer could furftr be locivase V4
rd 01001

PACAK, M.
"Z. Trnka and M. Dufek's Elektricke merici pristroje (Electric Measuring
Instruments); a book review. (Supplement) 11 p. L3-
SLABOPROUDY OBZOR. (MINISTERSTV0 PRESINWO STROJIRENSTVI, 14MSTERSTVO SPOJU A
VEDECKA TECHNICKA SPOLECNOST PRO ELEKTROTECHNM FRI GSAV.) Prabaj Czechoslovakia.,
Vol. 20, no. 1, Jan. 1959.
Monthly List of East European Accessions (EUI), LC, Vol. 8, No. 9, September 1959.
Uncl.

FACAK, M.; ffIADEX, L.
DC amplifier with negative feedback for electrometric purposes. P. 423.
SIABOPROUDY OBZOR. (Ministerstvo vseobecniho strojirenstvi, Ministerstvo, spoju
a Ceskoslovenska vedecko-technicka spolecnost, sekce elektrotechnika) Px-aha,
Czechoslovakia, Vol. 20, No. 7, July 1959-
Monthly List of East European Accessions (EEAI) W) VOL. 8, No. 2-1,
Novmeber, 1959.
Uncl.

CERMAK, V.; 11ANUS, V.; HJADEK, L.; HERM&N, Z.; PACAK, M.; SCHUM, L.
A mass spectrometer for precise determination of the ratio of
deuterium to hydrogen in hydrogen gas in the region of natural
deuterium concentrations. Coll Cz Chem 27 no.7:1633-1638 Jl
,62.
1. Institute of Physical chemistry, Czechoslovak Academy of
Sciences, Prague.

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Pacak, M. CELr,,-LJ.-Iatp of Ecienceo'l
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PoSIRACT - A -mlatively sJnple and sensit.14 ve microvoltmeter has been realized
using a special circuil. ,Hith a svitc-,Iiing con'tact, vorking as a aloaulntor and
diamod~ vIt"ll f "V so r-,--V; efcr f -1~11 ;~Ir- "l;-
of *he crrlr,~ct- met,-r le
amplifier it G-2 seco, noise r-t-, i,~,read,,-~j;
I
y
h-,.Lr, i-rip-it Lmp~danco i a !I- I
Card 112

L 6685-65
Acewsmi 7m: AP46116143
ASSCCIATICN-. UstrAv fyzikaLni rtbemie OSAV, Praha (Institute of Fh~Tsical
Cbemistry ef the Acadpray of ScipnceF
NO ITT SN' a'X)

CZECHOSLOVAKIA/Electronics - The Application of Electronics and H
Vacuum Techniques
Abs Jouir : Ref Zhur Fizika, No 4, 1960, 9326
Author : Facak Miroslav
Inst : Institute of Physical Chemistry, Czechoslovak Academy of
Sciences.
Title : Method of Regulating the Voltage of an Electronic
Stabilizer
Orig Pub : Slaboproudy obzor., 1959, 20, Ifo 5, 306-310
Abstract : An exposition is e~o:en of the principle of regulating
the voltage at The output of an electronic stablUzer
and an experln~ental verification of the properties of
the circuits of such a wh:~ch permits regu-
lation of the output voltage over a wide range with the
aid of a sirrple rheostat, is described. With this, the
Card 1/2

PACAK, Miroslav, inz.
mathematical design of linear pentode circuits. Slaboproudy obzor 21
no.4:219-225 AP 160. (Ew 9:8)
1. Ustav fyzikalni, chemie Ceskoslovenske akademie ved.
(Electronic circuits) (Pentodes)

23073
Z/039/60/021/011/001/003
q, Al 0 cm, 7/ prq) Eo24/E335
AUTHORS: PacAk, Miros~lav, Engineer
TITLE: A Thermionic Tube Indicator of Magnetic Induction
PERIODICAL: Slaboproudy' obzor, 1960, Vol, 21, No. 11,
pp. 641 - 645
TEXT: If a pentode Is placed in a magnetic field prallel
to the axis of its electrode system (such as in a magnetron),
the anode current I a decreases while the grid current I g2
increases. The theory of this process has been described in
Ref. 1 (the author - Slaboproud:~ obzor, 1958, Vol* 19, No, 7,
pp. 419-423), while Ref. 2 (Hladek, L and Ra'lek, M. -
Slaboproudk obzor, 1960, Vol. 21, No. 7, pp. 418-421) describes
some current-stabilizers based on this principle. The present
paper describes the use of such a magneticaliy modulated
thermionic tube for the measurement and indication of magnetic
induction. In particular, the arrangement was used for the
measurement and control of the magnetic field in a mass-
spectrometer. It proved accurate to 0.010.0, simple, reliable and
eug The linear range of the magnetically modulated
ar& d
I r3

23073
Z/039/6o/o2l/011/001/003
A Thermionic Tube Indicator ... E0211/E335
pentode.:Ls within the range of magnetic fields of 200 to
300 gauss. The pentode is placed in the stray field of the
mass-spectrometer magnet because the field between the polo
pieces is too high. The distance between the gap of the
magnet and the pentode is adjusted with a micrometer screw.
The measurement consists of measuring I g2 - I a by a bridge
method. The authors suggest that the measured current could
be used to drive a servo-mechanism .-rhich would move the
pentode into such a position as to achieve a predetermined
value of the measured current within the linear range of the
pentode. The intensity of the measured magnetic field could
then be read off a scale attached to the movement of the
pentode. The same principle could be applied to the stabil-
ization of a magnetic field. The method could be further
improved by using a specially constructed thermionic tube
instead of an ordinary one.
Card 2/3

A Thermionic Tube Indicator .... 22/0 7 3
039/60/021/011/001/003
E024/E335
There are 6 figures and 3 Czech references.
ASSOCIATION: Ustav fyzikalni chemie CSAV Praha
(Institute Of PhYsical Chemlstry of the CSAV,
Prague)
SUBMITTED: June 20, 1960
4r
Card 3/3

PAGAK, 141roolavy ins.
L single reactivitY-
- oln toward designing networks with 4 (EW 1019)
A contributi obzor 22 no.6:334-337 Ole 1619
Slaboproudy . CeskoslOvenske akademie ved, Praha.
1. Ustav f7likalni hli icity))
(Electric cirmits) (Rsactance(Eleot'r
t,
.4.

23985
Z/ 9/61/022/009/001/005
.2 4. 610 0 1!~ D2~/D303
A
Ab~T_~HOR: Pacak, Miroslav, Engineer
TITLE: Electron-tube current regulator
PERIODICAL: Slaboproudovy obzor, v. 22, no. 9, 1961, 532 -538
TEXT: The author describes the design wiring and functions of an
electron-tube current regulator, intended to supply the magnet of
a mass spectrograph. It was required that the magnet current be
either manually adjusted, or gradually increased by program control,
withi~4 'a range of 10 mA to 160 mA and with a stability in the order
of 10 * Since the stability requirement is greater for high than
for low currents the program control can be performed by changing
the reference voltage. This program circuit can easily be auto-
mated and contains a resistor-charged capacitor which effects a
gradual increase or decrease of the reference voltage and a corres-
ponding change of the regulated current. The principle wiring of
the regulator which employs rapid positive feedback and compensation
of auxiliary-voltage changes, is shown in Fig. 2. The working cur-
Card 1/7

23985
Z/039/61/022/009/001/005
Electron-tube current... D254/D303
rent (I) supplied by the main source (Ul) flows through the load
(RM), the regulator tube (E6) and the reference resistor (RNY, and
a loss (R I) originates which is compared with the reference
voltage P. it) This difference voltage is amplified and actuates
between tte grid and t~ncathode of the regulator tube with a polar.-
ity so that the relation IRN A UIR W is always maintained. In
case the reference resistor (RN) is constant, the working current
(I) can be manually adjusted or program controlled by changing the
reference voltage UR (t). For manual adjustment of the output cur-
rent, the switch (S ) is in the position as indicated in Fig. 2.
The reference voltaie (UR) adjusts then to the value UR which
can gradually be changed by operating the switch (PO ald the po-
tentiometer (P6). For program-controlled adjustment, the switch
(S ) is turned into position (d). The charge of the capacitor (C)
ch~njges then from the value URIsto U with the time constant (T
adjustable by the variable res tor tc The rate of this change
can also be varied while the program is in progress by changing
either the resistance (R), or the set difference UR2 - ujil. The
Card 2/ 7

23985
Z/039/61/022/009/001/005
Electron tube current... D254/D303
put current M. The same compensator arrangement can also be
used for precise adjustment of individual compensations. In con-
clusion, the author states that the prototype of the described
current regulator fulfilled all the imposed requirements. Slow
changes of the regulated current did not exceed 100 pi A, rapid
changes did not exceed 10 gA. This means that the relative sta-
bility of a 100 mA current wps better than lo-3 during a period of
one hour and better than 10-'t for short changes. Also, deviations
in the time constant of the program control are negligible but
could still be improved by using a larger capacitance (gria cur-
rent). The only factor limiting the long-time stability of the
regulator is the temperature change caused by batteries or temper.-
ature-dependent-resistors. There are 7 figures, 1 table and 6
reference: 4 Soviet-bloc and 2 non-Soviet-bloc. The reference to
the English-language publications reads as follows; W.R. Hill, Jr.
Analysis of Voltage-Regulator Operation. Proc. IRE 38 (1945), no.
1, P. 38; M. Pacak: Stabilized and Programme-Controlled Supply
Using Positive Feedback. Electronic Engineering 32 (1960), no.6,
Card 4/ 7

Electron-tube current...
P- 372-342.
. 1 -23985
Z/039/61/022/009/001/005
D254/D303
ASSOCIATION: Ustav fyzi~alni' chemie-CSAV, Praha (Physical Chem-
ical Institute, Czechoslovak AS, Prague).
SUE1,11ITTED: April 26, 1961
orl
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Voltage regulator with D409/D301
tage regulator is characterized as followst The device is very reliablet'
has only few highly-loaded parts, and permits continuousand precise
high-voltage regulation and adjustment over a wide range (practi-cally
zero to 4,200 v) while short-time fluctuations do not exceed 0.01 % and
the overall shift does not exceed 0.1 % per hour. Another advantage is
that both amplifier and oscillator can operate on zero potbntial, irres-
pective which of the output-voltage poles is zero. All other performance
data are comparable with those of a direct regulator usi4g a 10 v refer-
ence battery. Of certain disadvantage is the limited output of the r-f
oscillator (maximum 100 W) and the rather high internal impedance (1112
which, however, can be reduced by suitable rectifier design,and positive
feedback. Generally, it can be said that, even if an os6illator in a pow-
er source complicates the circuitry, such a voltage regulator is of ad-
vantage in devices requiring high-voltage regulat-ion and precise adjust-
bent within a wide range, e-go material-to8ting instruments, ion sources,
etc. There are 7 figures. The Exiglish-language reference ies H.S. Maut-
ner O.H. Schadet Television High Voltage R-F Supply RCA Review 8(1947)
no. pp 43 - 81.'
Card 2/3

h5695
Z/039/63/024/001/002/Oo6
E192/E,382
gineer
AUTHOR: En,
TITLE: A now design for a directly-coupled electron-tube
electrometer
PERIODICAL: Slaboproud~ obzor, v. 24, no. 1, 1963, 8 -,13
y
TEXT: The instr~nient has a maximum sensitivity of 5 x 10-16 A
or 5 x 10-4 V.. Its detailed circuit diagram is shown in Fig. 2.
The power supply is based on a simple ferroresonant stabili74er,
comprising a spccial transformer T and a series capacitor of
4.5 jiF. This reduces the mains variations of 170-250 V to
210-220 V. The anode voltages for the tubes of the instrument
are additionally stabilized by two gas-discharge tubes, type
TESLA 11TA31 and the heater current of the first two stages is
stabilized by a Zener diode, TESLA 3NZ70. This arrangement
results in an overall stabilization factor of 100. The probe of
the instrument conFists of an electrometric'. double triode and
an amplifier tube. These are arranged symmetrically and are
lipated from a separate source so that their zero &ability is
Card 1/4

Z/039/63/024/ool/oO2/00e
A new design .... r,192/P,382
high for such an unsophisticated circuit. The anode resistancesof
100 MS.L each in the electrometer tube are thermally 4Equaltized and,
have a tolerance of The gain of the electrometer stage is,
therefore, 1.2. and the combined gain of the first and second stage
of the T)robe is 30. The sensitivity of the probe output to the
interference signal is therefore 30 times less than at its input
so that the following stages of the instrument can be non-
synunetrical. Thus, the third stage is based on a pentode and has
an amplification of 500- Its output is directly coupled to the
final cathode-follower stage based on t-wo 11alvey of ECC82. The
input icsistance of the electrometer is R = 10 ohm. The system
is terminated with either a standard poinfer meter-g a recording
device. For measuring currents of the order of 10 A or less,
the resistance of the electrometer tube should be increasedand the
output of the instrument should be terminated with an RC integrating
network which suppresses the output noise and limits the operating
bandifidth of the amplifier.- The highest value of R e employed was
5 x 10 12 ohm. 1-1hen an integrator of 15 sec time constant was
used in conjunction with this resistance it was possible to
Card 2/4

Z/039/63/O24/ool/oo2/oo6-
A new design .... ru 9 2/ E-3 8 2
distinguish currant signals of 5 x 10'-16 A.
There tire figures.
ASSOCIATION: Ustav fyzilcC'klni chemie 6SAV, Pralia
(Institute of Physical Chemistry, ZSAV, Pr,ague)
SUBMITTED- September 7, 1962
Card 3/4

A
Z/039/63/024/001/oo2/006
A new design .... u92/E382
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Card 4/4 IL&CO cat.
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L 6 -6
:ACCESSION M AP3006229 2~/0039/63/024/00 9105 52105 3 3
';AUTHORs Paoak, Mirbalay (Engineer, Candidate of Sciences)
TITLEs A forroresonance voltage stabilizer improvised from a norma mains trans-
,former
:SOURCEs Slaboproudy obzor, v* 24, no. 9, .1983, 532-533
!TOPIC TAGSt forroromonanoes voltage stabilizer, transformer
iABSTRACTs If a nora44 mains transformer is supplemented by a suitab adjusted
ly
lautotransformor and'O'apaoitor of adequate value, an efficient forroresonance system:
:may be obtained with;relative ease. Fig. 1 of Enclosure 1 shqws;& simple cholce
.;or an autotransforiWr T adjusted for '~'mngnetization current ijid performanoe with
an overasturated c6r"o ;Rile the original tranef ormer T in oonne-o6d either to the
,,,whole winding or to,& suitable tap to ;supply the required volta'&O (lb). This
I
,method is more simple then the setting of the required input voltage as shown in la,
1;
,in which it is usually neooesw7 to select and not even an ox&h!t'o&pftoit'Y volume
libeside the tape of the primary winding. The simple arrangement limits the relative
!variations of the ~wdian and effeotiv6'values to one seventh. It works from 100 to
260 volts input voltage with a power of up to 50 watts. Fig. 2 of Enclosure 2
;Card

'ACCESSION NRs AP3006229
0
~shmm & diagram showing an example of the attainable Stabilization by moms of this
'Arrangement* The system is well suited for supplying mains ourrent to delioate
,eleotronic laboratory instruments* The orig. art. hass 2 figures ~ud 4 formulas.
1,A53OCIATIONs `1Jst&v-fyzik&ln1 chemis (Institute of*Physioal Chemistry) Prague, CSAV
ITTtDs * OSWVSS DATE ACQi 23Sep63 ENCLs 02
:SUB CODRs GE NO REP SOV: 000 OTHERt 000
:Card- 2/#;2-_
11

PACAK, Ydroslav, inz., CSc.
I ~ ~ .1 , - I .. 0,~ -- ., 6- -. -
Grapkic sOlUtion
tech 11 no.89320,
of sinple RC and RL voltage dividers. Sdel
3 of cover Ag 163.

L
-Z~L,cZION Nil
TITLE! trc)rlic or c1J,-,ec seccnda,-Y
So IJW E Slaboproudy obzorj, -v. 25, nc,. 7, 19641 d,03-409 . ferencO
ferer,0,3 element) c,rnnt re
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reference elefflan',,
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re, n,
Becondary StaDdard
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PACAK, Miroslav in2. CSc.
~--' .- .
Automatic selector of recording range. Automatizace 7
no. 3:65-68 Mr 164.
1. Institute of Physical Chemistry, Czechoslovak
Academy of Sciences.

91MXV~"-;M~W~
L 51799-65 FEIWA(h) Peb
ACCESSION NR: AP5016857 CZ/0014 35
AUTHOR: Pac .(Engineer, Candidate of sciences)
Kiroslay
TITLE: Proposed design and calculation for a vcitage=- .41ator
SOURCE: 8dolovaci technika, no.
TOPIC TAGS: voltage stabilizer
ABSTRACT: Tbe arti-cle de&IR Kith the desi.arn. calculationn.
a simple D. C. voltage regulator 'with the 6tabll'ty of ap-proximate-IT 71~'-
+ -A., th.
SCr A' "~N
SUBMITTED: 00 E24 C LO~') SUB CODE: 9F
~11 .
C.,d- 1/1-

F A ""I , I'll rosl-riv, - i I) Z. C:;c.
Electronic mi--rovoltm--tF!r with a conthc" m~cdulator. -!--a L~ proudy
obzor 25 no.25:571-576 0 164.
1. Irsi-itute of Physical Chemistry, Czechoslovak Iicademy of
Scierces, Prague.

PACAX, Miroslav, inz. CSc.
Voltage stabilization by the Zener diode with compensation,
Automatizace 8 no.1:7-9 Ja 1615.
1. Institute of Physical Chemistry ot the Czechonlovalk Academy
of Sciences, Prague.