4000 Series CMOS Logic IC Dil Chips By Texas Instruments

This is one item of new, 4000 series logic device from Texas Instruments. The B suffix indicates the buffered output version. The UB types are unbuffered. The E suffix indicates the DIL/DIP package with legs on. The CD prefix is currently used by Texas Instruments so a CD4012BE is the current replacement for what may be marked as 4012B.

The 4069UBE is available which can be biassed-up into a linear amplifier mode. That allows you to play a variety of electronic tricks. You can see some of those at the following link:

A Miniature CMOS 4069UBE PWM AM MW Radio Transmitter

More, semi analog logic chip projects can also be seen here:

Crystal Controlled A440 Oscillator

Hammond Organ Sound Generator

Radio Glen Transmitter Information Technical Data And History Of The X-Model Prototype

Graphical Waveform VCO Oscillator

HCF4011B is by ST.

Many 74HC series chips are available on another listing in this shop.