The Museum of HP Calculators

Class A Transistor Amplifier Bias Optimization for the HP-41C/CV/CX

This program is Copyright © HP and is used here by permission. It was originally printed in the HP-67 E.E. Pac 1. This program was ported to the HP-41C by reading with the HP-41C card reader and the card reader may be required for operation of this program. This program was entered and uploaded by Tony Duell.

This program is supplied without representation or warranty of any kind. Tony Duell, Hewlett Packard and The Museum of HP Calculators therefore assume no responsibility and shall have no liability, consequential or otherwise, of any kind arising from the use of this program material or any part thereof.

Documentation Information (CD or source code)
How to get this Program to your Calculator (via HP-IL, disk, wand, and fingers)
Download Binary (.raw) program for disk or PC HP-IL Card download
Download Hexadecimal (.dat) program for Serial Port download

Program Listing

LINE  KEYS
 01 LBL "TRAB67"
 02 LBL 10
 03 LBL A
 04 RCL 09
 05 7P<>S
 06 STO 09
 07 7P<>S
 08 RCL 04
 09 25
 10 -
 11 RCL 05
 12 /
 13 STO 05
 14 RCL 00
 15 X^2
 16 *
 17 RCL 04
 18 RCL 02
 19 -
 20 4.4
 21 *
 22 /
 23 STO 22
 24 .1
 25 *
 26 STO 23
 27 LBL 00
 28 RCL 00
 29 2
 30 /
 31 ENTER
 32 ENTER
 33 RCL 22
 34 RCL 23
 35 +
 36 /
 37 STO 25
 38 RCL 05
 39 *
 40 *
 41 RCL 02
 42 +
 43 RCL 04
 44 X<>Y
 45 X>Y?
 46 GTO 01
 47 XEQ 03
 48 CHS
 49 RCL 01
 50 1
 51 +
 52 XEQ 04
 53 RCL 08
 54 +
 55 STO 24
 56 1
 57 RCL 01
 58 X^2
 59 -
 60 2
 61 /
 62 RCL 25
 63 *
 64 RCL 05
 65 *
 66 RCL 00
 67 *
 68 RCL 03
 69 +
 70 XEQ 03
 71 CHS
 72 1
 73 RCL 01
 74 -
 75 XEQ 04
 76 7P<>S
 77 RCL 09
 78 +
 79 7P<>S
 80 STO 09
 81 RCL 24
 82 X>Y?
 83 GTO 02
 84 -
 85 RCL 25
 86 /
 87 RCL 01
 88 /
 89 RCL 23
 90 X<>Y
 91 STO 23
 92 %CH
 93 .5
 94 X<=Y?
 95 GTO 00
 96 FS? 01
 97 GTO 01
 98 SF 01
 99 GTO 00
100 LBL 01
101 CF 01
102 STOP
103 STO 21
104 X<>Y
105 STO 20
106 RCL 01
107 2
108 *
109 RCL 25
110 *
111 RCL 23
112 *
113 RCL 24
114 +
115 RCL 09
116 -
117 RCL 21
118 *
119 RCL 20
120 *
121 1
122 RCL 01
123 -
124 RCL 20
125 *
126 1
127 RCL 01
128 +
129 RCL 21
130 *
131 -
132 /
133 RCL 25
134 /
135 STO 02
136 RCL 21
137 /
138 RCL 23
139 +
140 RCL 25
141 *
142 1
143 RCL 01
144 -
145 *
146 RCL 09
147 +
148 STO 03
149 RCL 00
150 X<>Y
151 /
152 RCL 02
153 *
154 RCL 02
155 RCL 00
156 *
157 LASTX
158 RCL 03
159 -
160 /
161 RCL 22
162 RCL 23
163 7PRSTK
164 /
165 RCL 21
166 *
167 RCL 02
168 *
169 LASTX
170 RCL 23
171 RCL 21
172 *
173 +
174 /
175 LOG
176 10
177 *
178 7PRTX
179 RTN
180 LBL 03
181 FS? 01
182 7PRTX
183 25
184 -
185 2.2 E-3
186 *
187 RTN
188 LBL 04
189 RCL 25
190 *
191 FS? 01
192 7PRTX
193 RCL 06
194 /
195 LOG
196 RCL 07
197 *
198 +
199 RTN
200 LBL 02
201 0
202 STO 23
203 LBL 01
204 1.1
205 RCL 22
206 *
207 STO 22
208 GTO 00
209 STOP
210 END

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