RESISTOR SUBSTITUTION BOX
x DECADE BOX (RESISTANCE)
xx RESISTOR
A combined resistor and capacitor substitution box. Provides 12 capacitor values from 470 pF to 100 uF. CQ. THE RADIO AMATEUR'S JOURNAL Jan 1979 (v.35#1) pg. 32
Dialup resistance substitution box lets you choose any value from 0 to 999,999 ohms (in 1ohm steps) using thumbwheel dials. ELECTRONICS HOBBYISTS HANDBOOK 1990 pg. 63
Resistance substitution box goes from 1 to 1,111,110 ohms in 1ohm steps. ELECTRONICS ILLUSTRATED Mar 1964 (v.7#2) pg. 100
Mini resistor rack holds 20 of the most popular resistors. Use to make quick resistance changes when troubleshooting equipment. Est. cost: $3. ELECTRONICS ILLUSTRATED Sep 1969 (v.12#5) pg. 38
Build your own audio test gear. Part 5. Building a resistor substitution box (1 ohm to 11.11 megohms). Est. cost: $70 (kit). ELECTRONICS NOW Dec 1997 (v.68#12) pg. 28
Testbench resistor box keeps 50 resistor always ready and safe from damage. Est. cost: $18. ELEMENTARY ELECTRONICS SepOct 1966 (v.3#1) pg. 86
Lowcost resistance decade. Universal decade box gives resistance of 1,2,3,...10,20,30 ohms. Est. cost: $3. ELEMENTARY ELECTRONICS JanFeb 1967 (v.3#3) pg. 98
Instant patch box provides a shielded method of substituting resistance, capacitance or inductance into a circuit with a minimum of problems. ELEMENTARY ELECTRONICS SepOct 1973 (v.13#5) pg. 58
Resistance substitution box has three dials for setting values from 200 ohms to 1.1 megohms with 10% or less error. Est. cost: $5. ELEMENTARY ELECTRONICS JanFeb 1974 (v.14#1) pg. 67
Resistance substitutions cube has 24 resistors that can be used singly or in series to produce all resistance values of 1 to 9 ohms and all multiples of 10 of these values through 100,000. ELEMENTARY ELECTRONICS MarApr 1974 (v.14#2) pg. 41
Resistor bank. Build a resistance substitution box with seven ranges covering 10 ohms to 68 Megohms. Est. cost: $33. HANDSON ELECTRONICS Summer 1984 (v.2#1) pg. 48
Combination RC substitution box. Flip switches to substitute heavyduty resistors or capacitors individually or in a series or in parallel networks. Range: 012,500 ohms. POPULAR ELECTRONICS [1] Jan 1966 (v.24#1) pg. 82
Modification to the Heathkit Model IN37 resistor substitution box provides more than 200 different values instead of 36. POPULAR ELECTRONICS [1] Jul 1970 (v.33#1) pg. 74
Wheatstone bridge substitution box gives values from 1 to 999,999 ohms. POPULAR ELECTRONICS [1] Feb 1971 (v.34#2) pg. 63
Resistance decade box uses rotary switches to overcome some problems with other units. POPULAR ELECTRONICS [1] Mar 1971 (v.34#3) pg. 64
Build an active power R box. This circuit can convert any resistor, fixed or potentiometer, into 40watt power resistors. Use it to simulate a wide range of load conditions when building and repairing power supplies. POPULAR ELECTRONICS [1] Oct 1978 (v.14#4) pg. 69
Build a resistance capacitance substitution box. Provides resistances from 0.5 ohm to 20 megohms and capacitances from 5000 pF to 2 uF. POPULAR ELECTRONICS [1] Apr 1982 (v.20#4) pg. 80
Dialup resistance substitution box uses six thumbwheel switches to choose any resistor value from 0 to 999,999 ohms. POPULAR ELECTRONICS [2] Mar 1989 (v.6#3) pg. 41
Variable resistorsubstitution box uses one or more potentiometers in place of resistors. POPULAR ELECTRONICS [2] May 1991 (v.8#5) pg. 77
Circuits for a resistance decade box that has six decades ranging from one ohm to one megohm. RADIOELECTRONICS Jan 1986 (v.57#1) pg. 22
Resistancecapacitance decade box. Rotary switches let you vary resistance from 10 ohms to 11.111 megohms and capacitance from 100 uF to 10 pF. Est. cost: $130. RADIOELECTRONICS Nov 1989 (v.60#11) pg. 39
Dialaohm resistance substitution box. RADIOTV EXPERIMENTER #789 JunJul 1966 (v.20#3) pg. 40
Pot Box. Twelve potentiometer values controlled by only four knobs through the use of 3position, doublethrow switches. Resistance from a few ohms to 10 megohms. Est. cost: $22. RADIOTV EXPERIMENTER AprMay 1967 (v.22#2) pg. 92
Power resistor load box provides resistances from a fraction of an ohm to more than 3700 ohms, with a power rating in excess of 25 watts. A builtin currentmonitoring meter, fuses and enough banana plugs for series, series/parallel, and parallel connections. RADIOTV EXPERIMENTER FebMar 1968 (v.24#1) pg. 82
