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> 1 reticon SAD512/sad 512 analog delay line,bbd music ic
1 reticon SAD512/sad 512 analog delay line,bbd music ic
RARE RETICON SAD512 / SAD 512 / RETICON 512, MUSIC IC
BUCKET-BRIGADE ANALOG DELAY LINE (HALF OF SAD1024 / SAD 1024)
New old stock (NOS) DIP/DIL ICs. Legendary and rare Reticon Reticon SAD 512 / SAD512 / Reticon 512, SAD512-type bucket brigade analog delay line (BBD - Bucket Brigade Device). Why they no longer make this extremely useful analog IC (and the SAD1024 and SAD2048) is a mystery to me! The SAD 512 is getting very hard to find these days. Note, this is an ANALOG DELAY LINE IC - it is NOT a relatively inexpensive digital delay line IC. Great for generating audio special effects / music special effects / sound special effects, such as echos, reverberations and sum-and-difference frequences / comb filter / flanger / phaser effects, to give music and sounds more depth, character, uniqueness and richness, and for special audio effects / special music effects / special sound effects. Other applications include voice control of tape recorders to prevent loss of initial sounds (real time voice triggers the recorder's ON/OFF control while also being recorded by the SAD512 circuitry; then after tape recorder starts recording, the delayed sound from the last SAD512 stage output comes through and you miss nothing), variable signal control of amplitude or of equalization filters, tremolo, vibrato and chorus effects in electronic musical instruments, variable or fixed delay of analog signals, time compression of recorder and telephone conversations or other analog signals (for example, to minimize dead periods that only waste listening time), music and audio sampling systems, and for the ever-popular voice scrambling and voice encoding systems. SAD512 ICs can be cascaded together to increase delays and to tap off of intermediate points to increase delay or resolution. Clock rate may be as high as 1.5MHz. Input signal frequency can be more than 200KHz, so the SAD512's usefulness extends well into the ultrasound (ultrasonic) / sonar bands, and handles treble frequencies nicely. Much easier, faster, cheaper and compact to implement than ADC-to-DAC digital methods, and some audiophiles say that the results are much more natural-sounding than digitized music. Superior to the TDA1022 (also a 512-stage bucket-brigade analog delay line) because the TDA 1022 requires a negative power supply and is good for input signals only up to 45 KHz - while the TDA1022 is OK for audio and infrasonic designs, I won't design with TDA1022 for any of my ultrasonic, sonar and treble frequency bandwidth special projects. The SAD512 is simply a fantastic IC! I recently purchased a ton of these - more than I can use in a lifetime, so I am selling off a small percentage of my stock.
