HP 4328A - Etched Circuit Soldering Equipment; Impedance

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Model 4328A
Section V
Table 5-7
Table 5-7. Etched Circuit Soldering Equipment
Item Use
Soldering Tool Soldering
Unsoldering
Soldering Tip, Solder1ng
general purpose
Unsoldering
De-soldering aid Unsoldermg multi-
connection components
(e .. g. , tube sockets)
Resin (flux)
Remove excess flux
solvent
from soldered area
before application of
protective coating
Solder Component replacement
Circuit boartl repair
Winng
Protechve
Contamination, corrosion
Coating
protection after soldering
*Krylon Inc., Nornstown, Pennsylvania
1. CORE
2. COIL
9170-0271
(1. 5mm¢ copper wire
one turn)
Figure 5-2. (0. 9mS1 + j 1. 8mr.l) Impedance
Specification
Item Recommended
Wattage rating 37. 5 Ungar #776 Handle with
Tip Temp 750 - 8oo• F
Ungar #1237 Heating Unit
Tip Size·
1/8" OD
Shape··
chisel Ungar #PL113
Size 1/8"
Suction device to remove Soldapult by the Edsyn
molten solder from Company, Arleta,
connection
California
Must not dissolve etched
Freon
circuit base board rna-
Acetone
tenal or conductor
Lacquer Thinner
bonding agent Isopropy Alcohol (100% dry)
Resin (flux) core, high
tin content (60/40 tin/
lead), 18 gauge (SWG)
preferred
Good electrical insula- Krylon* #1302
tion, corrosion-
prevention properties
Humiseal Protective Coating,
Type 1B12 by Columbia
Technical Corp.
Woodside
77, New York
1. RESISTOR
0757-0399
2. INDUCTOR
9100-0761
Figure 5-3. (90S1 + j 180n) Impedance
5-7