Help identifying this gizmo

[Eldorado828]

Well fellas I've tried searching for days and have come to no conclusion as to what this board could be.
Now I turn to you wwdx comrades, maybe some here knows what this board is.

It comes with mounting tab and all the wiring but for what? The vc1, is it a band board of some kind, a frequency counter board replacement? Any help is appreciated.

 

[brandon7861]

I think it is an echo board. The RS0072 is an audio voice changer chip

RTS0072 Datasheet | RealTek - Datasheetspdf.com

RTS0072 VOICE CHANGER datasheet pdf provided by Datasheetspdf.com Datasheet pdf Search for RTS0072.

datasheetspdf.com

 

[sp5it]

Voice changer board.

 

[Eldorado828]

I appreciate you fellas replies.

I've got a few of them that I bought in a lot several years back. They came just as you see them, no control pots, wiring diagram or anything. If they're a voice changer should have had controls and documentation but they have none of that.

 

[brandon7861]

The datasheet shows what the pins do and some common ways to use the it with external circuitry. I wouldn't be surprised, for the CB world anyhow, if someone just copied the schematics from that datasheet (edit, nevermind that, it looks different, need the board schematic to know). If I have time later, I will see if I can find anything out from that board number.

RTS0072 datasheet, changer equivalent, RealTek

RTS0072 datasheet, RTS0072 changer equivalent, RealTek, Features and benefits, Stock and price

datasheetspdf.com

 

[Handy Andy]

If you've ever seen those toys that have a mask and a speaker inside that mask that when the kid wears the mask and speaks into that device - the speaker or the membrane (Piezo element) vibrates the mask to make this new voice.

People whom used to use a voice changer for fighting back against harassing phone calls...similar idea - disguise the voice...

The "Darth vader" is one type of use, another would be those PA horns used for funny gags that change you voice to a higher or lower pitch than what you have.

So you use a Rotary switch or press a button to change the program to force the sampled sounds to a higher or lower "speed" or pitch - which is by using those pins in a binary way - can change the speed to match or speed up or slow down - the output sampling - the sampling is "set" - but the headers are for the speaker, power and selected input (speaker part is more than likely it is for a piezo element that is glued to the mouthpiece of the mask or the PA Horn)




You know the funny part?

Go to this link...it's at Alldatasheet

RTS0072 pdf, RTS0072 Description, RTS0072 Datasheet, RTS0072 view ::: ALLDATASHEET :::

RTS0072 Datasheet, RTS0072 datasheets, RTS0072 pdf, RTS0072 integrated circuits : ETC - VOICE CHANGER ,alldatasheet, Datasheet, Datasheet search site for Electronic Components and Semiconductors, integrated circuits, diodes, triacs and other semiconductors.

pdf1.alldatasheet.com

Scroll to Page 6 - go all the way down...bottom of the page - you'll see the origin sourcing of this data...



Wild!

 

[TM86]

From unknown device to having enough info to make it work in a few hours. Gotta love this place.

 

[Eldorado828]

Wow that's odd to see cb tricks in there!

 

[nomadradio]

Wow that's odd to see cb tricks in there!

What I want to know is what back door did Bennie use to beat the All Data Sheet site to the punch for this info. All Data gets their material wherever they can, but this is humorous.

Kinda like the Ebay pop-up ads showing me the circuit boards I sell there.

73