Circuit Bench

Articles
Title
CMOS Mixer (CB1290E )
3 Channel Mixer (CB1288E)
Dual Power Supply 12 + 12 V x 1 A (CB1182E )
Power Zener (CB1181E)
Power Supply 5 to 13 V x 1 A (CB1180E)
7.5 V x 1 A Power Supply (CB1179E)
Power Supply 6 - 9 - 12 V x 1 A - I (CB1178E)
Circuit To Observe Transistor´s Characteristic Curve (CB1287E)
Old Schmitt Trigger (CB1286E)
1 V Precision Reference (CB1285E )
Dual power supply with the 741 - I (CB1183E)
Auto Stabilized Zener using the 741 (CB1283E)
Variable Zener Variable from 2.5 to 10 V (CB1284E)
Adjustable Voltage Reference (CB1282E)
Freezer Alarm (CB1281E)
Linear Regulator For Solar Cell (CB1176E)
Level Indicator 741 (CB1279E)
Touch Key 555 (CB1278E)
CMOS Proximity Switch (CB1277E)
CMOS Logic Switch (CB1276E)
5 V Stabilizer with the 741 - I (CB1175E)
CMOS Touch Key with Lock (CB1275E)
FET Touch Relay (CB1274E)
One Minute TTL Timer (CB1273E)
CMOS Digital Timer from 0 to 99 Minutes (CB1272E )
One Hour Timer using the 555 (CB1271E)
Battery Regulator (CB1174E)
741 Timer Up To 10 Minutes (CB1270E)
Delay Up to 5 Minutes with Triac (CB1269E)
Microsecond CMOS Timer Up To Hours (CB1268E)

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