I recently found one of these in a carboot sale. There are schematics on the sailormouth site though the circuit board on mine was different. Anyway I fried mine; it only cosy me a few pence and I was not that bowled over by what I found so I wasn't very careful. Apart from a couple of distortions (which made the voice quite funny) most of the bends just caused it to re-trigger sounds really fast, although there were two glitches which were funny too, although they produced the same results each time.
Here is a board scan with some points marker penned on, although a couple won't do anything at all since I was also marking where certain components were. Basically you need to use (+) connection for the speaker and connect it to any of the solderpoints marked in black. The two crosses are glitches.
i bent one of these - they are AMAZING - just bring the battery power down a bit with a 1k pot and u have some super crashes hehe and weird loops... also if u ever think u have fried it - remove the resistor in the plastic shielding (just bypass it) and it'll work fine again heh
Hi - I replaced the resistor all certain that I hadn't fried it but it didn't work again. I was using a DC power supply and turning the voltage down didn't do anything exciting, however a 1K pot may have created better results but I never got that far before I broke it
Did you have the same version as this? If you have a look on the squarewave website he appears to have bent the a desk that sounded like the one I had http://thesquarewaveparade.com/litphabet-dek.html
It only cost me 50p, had no battery cover, so I was abit heavy-handed with it! I have another one anyway, so I will open that one up and see I have any more luck.
« Last Edit: March 30, 2007, 12:48:01 PM by iqoruvuc »
ah my one is read and says "little phonics" under the alphabet desk writing... hrm - have you tried shifting the + connector from the battery around the board? i found this worked on another vtech machine that blew up
I opened up the other alphabet desk I have last night and had a play-around inside. Bizarrely the circuit borad is exactly the same but it behaves completely different.
Some of the bends that worked on the other one have absolutely no effect whatsoever, I can't get the same excorcist-like distortion the other one did, this one glitches much more, and hardly does the trigger-repeat thing which was pretty much all my other on did. I have only tried connecting points from the speakers (+) side so far, but I am surprised it behaves so differently. Also doesn't seem to respond to power crash either. Strange.
I actually got the same one. It even has the same serial number. I have messed around for a long time in but I can only get cycles of noises already on it. how do I get the great distortions I that guy made. This is actually the first time I have circuit bent so don't flame.
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- just bring the battery power down a bit with a 1k pot and u have some super crashes hehe and weird loops... also if u ever think u have fried it - remove the resistor in the plastic shielding (just bypass it) and it'll work fine again heh
