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Star Tech Journal

Issue: 1983-August - Vol 5 Issue 6 - Page 21

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21
s,.....T-AR_*_TE_C_H _Jo_u_RN_A_L/-AU_G_us
- T-19_8_3
52. Semiconductors considered
to be "low power" or"small
signal" usually have power-
dissipating ratings of:
a) 20 watts or less
b) 10 watts or less
c) 5 watts or less
d) 1 watt or less
_I_N_QizITIVE
53. Reactance is a property of
electrical devices and con-
ductors which:
a) resists the flow of electrons
b) retards changes in voltage
c) retards changes in current
d) a and b above
e) band c above
j lnQuizitive Answers (July)
49) e
50) b
51) a
54. Some ways to help semi-
conductors perform better
at higher frequences are:
a) decreasing the size of the
semiconductor chip
b) maltlng the leads shorter
and smaller
c) using smaller packages
d) all of the above
e) none of the above
55. Compared to small-signal
transistors, high-power tran-
sistors usually:
a) cost more
b) make more heat
c) are bigger
d) are more complex
e) switch slower
t) all of the above
g) all but d and f above
Star,trTech Journal Technical Seminars
CORRECTION
Onpage22 oftheJuly'83 issue(Vol. 5, No. 5), one of
the formulae on the outside ring of the PIE DISH is
incorrect In the center quadrant P (Power), I'/R
should read I'xR Please change your illustration so
the formula will read correctly. __ ---,-. __
Upcoming dates and locations for Distributor-sponsored S*TJ
Technical Seminars are listed below. If you're interested in
attending, please contact the appropriate sponsor.
AUGUST 22·26, 1983, O'Connor Distributing, Dallas, TX
Contact: Dennis Norwood - 214/631-0768
SEPTEMBER 12·16, 1983, Betson Enterprises, Moonachie, NJ
Contact: Steven Betti - 201/440-2200
From New York & Connecticut: 800/526-7004
In New Jersey: 800/652-2837
Distributors interested in sponsoring an S*TJ Technical
Seminar should contact Star*Tech Journal at 609/662-3432 for
further information.
ALL-PURPOSE NON-CONTACT AEROSOL DUST/LINT REMOVER
ANNOUNCED BY CHEMTRONICS
An improved, non-contact aerosol dust and lint
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The newly formulated aerosol delivers 70 pounds
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Chemtronics 70 PSI Dust and Lint Remover is
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Forfurtherinformation,contactCustomerServiceDept,Chemtronics
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• - 70 PSI is a trademark of Chemtronics Inc.
Is Someone You Know Interested in Receiving a Sample Issue?
If there is, simply fill out the information we'll need to mail them a complimentary issue.
Mail it to Star*Tech Journal, PO Box 1065, Merchantville, NJ 08109.
Send a sample copy to:
Name _______ _ _ ____ _____ _
Send it compliments of:
Name _ ______ _____ _ _ ____ _
Address. ___ _______ __ __ __ _ _
Address. _ _ ____ ___________ _
City/State/Zip
City/State/Zip. _ __ _ _ _ _ __ _ __ _ _ _
SELL IT.
Interested in advertising? S*T J reaches over 4,000 service shops with a readership of over
12,000 operators, distributors, technicians and manufacturer suppliers. Your message gets
read more than once .. . again and again. For more information call Paul at 609/662-3432.

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