Posted by admin on Thursday, December 16, 2010 · Leave a Comment
I'm looking to build a Sine, Square and Triangle waveform generator based upon the ICL 8038. Pre-etched PCB would help. Frequency range 100Hz-100KHz. RS no longer stock the chip and likewise Maplins. Self-assembly kit preferred.
I used the 8038 several times and found that it is infuriatingly difficult, if not impossible, to maintain decent sine purity over a wide range of frequencies.
I then discovered the XR-2206 and dropped the 8038. It is so much easier to use and I suggest that you at least have a look at it before you go ahead.
I may, just may, have an 8038 somewhere amongst my toys if you are determined to try it. No promises though.
(Oh, I just noticed Empty tummy's offer.)
This is one circuit which you may find interesting http://www.davidbridgen.com/swpgen.htm
MILLER WELDING 142053 PCB MOTOR SPEED CONTROL CIRCUIT CARD ASSEMBLY, MILLER WELDING 142053 PCB MOTOR SPEED CONTROL CIRCUIT CARD ASSEMBLY, MILLER WELDING 236087/ 235870 REPLACEMENT MOTOR PCB/GUN CIRCUIT CARD ASSEMBLY, MILLER WELDING 142053 PCB MOTOR SPEED CONTROL CIRCUIT CARD ASSEMBLY, Canon Printer Main Controller Board PCB Assembly IR6055, Puritan 7200 Conversion PCB Assembly 4-018041-00 medic-nib, Frymaster 1066779 Interface PCB Assembly Fryer Pre-98 NEW Fry Master , FOOT SWITCH ASSEMBLY (PCB) 040988 PCB730, PCB ASSEMBLY 017850 PCB729, SWITCH BACK PCB ASSEMBLY 018326 PCB723, Main PCB Assembly 6114-A01-0907 B for CAS NC-1 Crane Scale BRAND NEW, PCB ASSEMBLY FOR SAFETY LIGHT, MACH3 Control 33620-R Board PCB Assembly D4-0033620-R Card NEW , ASM 02-187742U02 PCB Assembly Foxboro Front with EPROM, ASM 03-142475U01 PCB Assembly Foxboro with ROMS-OM, ASM 02-187742U03 PCB Assembly Foxboro Side with EPROM, ASM 03-187742U01 PCB Assembly Foxboro with ROM, ALLEN BRADLEY SP-142129 AGC-1 1/2 PCB POWER SUPPLY ASSEMBLY ASSY 60W WATT 47898, ASM 02-147187-03 PCB Assembly Foxboro Side with EPROM without VRAM B1279EN, ASM 54-121550U03 PCB Assembly Foxboro Controller B1279EE-A, Waters Quality 700002763 Pump Driver PCB Assembly [52], ASM 03-142707U01 PCB Assembly CONF, ASM 02-147187-02 PCB Assembly Foxboro FRN, NEW ASM PN: 02-187742-03 Foxboro Side w/EPROM Circuit Board Assembly PCB, Assembly Line & PCB Inspection Zoom Stereo Boom XYZ Stand Microscope USB Camera, Nutek NTM4410LM Advance Platform Line Loader Multi-magazine PCB Assembly, CANON IR1022 IR1024 NETWORK I/F BOARD PCB ASSEMBLY FM2-5048, CANON IR2016 IR2018 NETWORK I/F BOARD PCB ASSEMBLY , NEW ABB 74742-00 AMPLIFIER PCB ASSEMBLY CONTROL BOARD RANSPAK 1000 CONTROL 74723, RACAL-DANA MODEL 1277 VXI 21-SLOT MAINFRAME OPT CHASSIS 404984 W/PCB ASSEMBLY, MILLER WELDING 142053 PCB MOTOR SPEED CONTROL CIRCUIT CARD ASSEMBLY, Star 39607510 -Star Micronics 39607510 Printed Circuit Board Assembly, Nutek NTM1410-M FIFO PCB Board Buffer Handler Assembly PTE LTD + Panasonic Motor, Printed Circuit Board Assembly for 3-Phase SCR Power Module for Pierry IR Dryer, QTI QUAD-TECH 33705 RGS4 OC VER 3.1 CPU, PCB ASSY ASSEMBLY, CIRCUIT BOARD - NEW/, QTI QUAD-TECH 25484 RGS4 2000 CPU, ALUM, PCB ASSY ASSEMBLY, CIRCUIT BOARD - NEW/, ROYONIC ROYONIX INC LAMP / BULB ASSEMBLY for PCB ASSEMBLY TABLE NEW, MILLER WELDING 236087/ 235870 REPLACEMENT MOTOR PCB/GUN CIRCUIT CARD ASSEMBLY, CASI-RUSCO 110044001 AMP CARD PCB ASSEMBLY, NIB, STRECKFUSS C065 RADIAL CUT FORMER LEAD PCB ASSEMBLY, MILLER WELDING 142053 PCB MOTOR SPEED CONTROL CIRCUIT CARD ASSEMBLY, MILLER WELDING 142053 PCB MOTOR SPEED CONTROL CIRCUIT CARD ASSEMBLY, MILLER WELDING 142053 PCB MOTOR SPEED CONTROL CIRCUIT CARD ASSEMBLY, YAMAHA PM3500 PCB ASSEMBLY MTS 2/3 P/N:NX815450 GENUINE, Stacked 4-Jack Phono Jack Assembly PCB Mount, Crane/National snack machine Part # 1596012 PCB ASSEMBLY - TRAY , Stratagene Robocycler Agilent 61384-01 PCB Power Assembly Board, NEW ASM PN: 02-147187-04 Foxboro-Rear W/EPROM/NOVRAM PCB Board Assembly, FK2-0489-000 Canon High Voltage PCB Assembly, FM2-4495-000 Canon IR2020i Feeder Controller PCB Assembly,