velleman kits

[Connoisseur of Distortion]

wow! these kits are great! i took a trip to an electronics store yesterday and picked up a sound amplification kit (picks up ordinary sounds puts them in your ears) and have been walking around with them for awhile now...

the kit came with a tinned PCB, and all component locations marked and labeled on the topside. It had all of the necessary components, including an IC socket and a NE5532. The thing cost me $10 and about 45 minutes of time, and now i can't leave it alone!  

they had a whole wall of projects... and i'll probably end up building them all because of the positive experience with this one. recommend them to anyone.

[MartyMart]

I built the 7 watt mono amp ( which someone gave me ) and it sounded
awful !!!
It was a good/clear kit though !
I need to remake it as the Anderton amp

Marty.

[John Lyons]

I built the sine wave generator. Has Saw, sine and square wave shapes. Simple and fun. I built it to trigger sub bass from a kick drum in mixdown sessions. Cool for a theramin type noisemaker (use a huge knob for repeatability and more control. Small knob for faster sweeps)
Parts express has these pretty cheap.

John

[Paul Perry (Frostwave)]

Basicaudio, what was the number of the sine wave kit?
Velleman has manuals (including schematics) on their website
http://www.vellemanusa.com/

[John Lyons]

Mine is a "Function Generator" Model FG-500.

John

[Wixomwhat]

you guys see there are 3 tube amp kits and 2 or 3 ss amps on their site?

Anybody have any idea how much the kits cost?

[Wixomwhat]

the tube kits are expensive

http://www.designnotes.com/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=auha

[Paul Marossy]

www.kitsrus.com also has some nifty little circuits.

[Nasse]

Few interesting ones:

K8045 Programmable LCD display message wiewer for your project, add some high tech for your project, about 50 euros, "add an LCD display to any low-tech application and make it look high-tech !"

MK121PAL classic "TV tennis" game, just 20 euros

MK157 smaller LCD message display

MK171, coming soon minikit, Dalek voice machine

[loscha]

http://www.velleman.be/Downloads/0/Manual_MK100.pdf
http://www.velleman.be/Downloads/0/Manual_MK101.pdf
http://www.velleman.be/Downloads/0/Manual_MK102.pdf
http://www.velleman.be/Downloads/0/Manual_MK103.pdf
http://www.velleman.be/Downloads/0/Manual_MK104.pdf
http://www.velleman.be/Downloads/0/Manual_MK105.pdf
etc, etc, etc
most up to 157 are there, except for the following 404 sized files in my directory.....

114, 137, 142, 146, 150, 153, 155, 156, 159

I really like the dice kit (MK109). Uses a charging capacitor to control the frequency of the CD4046 phase locked loop. Sounds kind of like a synth kick drum if you tune it correctly with some additional resistors!

Future plans include experiementing with CD4046s as synthesizer noise makers (try to cascade a few for FM synthesis madness).

[Nasse]

10-CHANNEL, 2-WIRE REMOTE CONTROL
Order Code:   K8023

[MrChameleon]

Paul, perhaps it was the kit MK105 "Signal Generator". I bought 2 over the 'net when I couldn't find it in Sydney, and have a spare, unbuilt one.

Basicaudio, what was the number of the sine wave kit?
Velleman has manuals (including schematics) on their website
http://www.vellemanusa.com/

[loscha]

yeah, it seems the 105 is the only signal generator in the  MiniKits.

This is a hook up to your PC signal generator.
http://www.velleman.be/Downloads/0/Manual_K8016.pdf

this one looks interesting. it's got sine wave and "32-bit digital pink noise"
http://www.velleman.be/common/product.Aspx?lan=1&id=354162

[Paul Perry (Frostwave)]

Paul, perhaps it was the kit MK105 "Signal Generator".

I don't think so, the MK105 is fixed frequency, isn't it?
An ingenious design, but since the outputs are capacitor shaped, can't be converted to a variable frequency sine oscillator.

[MrChameleon]

Yes, fixed frequency of 1KHz iirc. Amplitude variable with pot, wave type variable by jumper.

[John Lyons]

I need to check again but Partsexpress.com had this Signal generator/Function generator...That's where I bought mine years ago.

I do have the manual which lists the models as FG-500K.
If you want a copy of schematic I can send it to you through the mail. I has got a lot of good info, not just the values and numbers. THoeory of operation etc...
My email is basicaudiowvATearthlinkDOTnet. Just adjust the email address and drop me a line with your address to mail to.

Thanks

John

[Paul Perry (Frostwave)]

Thanks Basicaudio! found it on the web. Based on the XR2206.
www.electronickits.com/kit/complete/meas/fg-500k.pdf

[loscha]

I've been looking at making a pair of reasonble quality test oscillator for use around the house (and one for my friend Bill to use, too), and the XR2206 is the chip I keep coming back to.

I'm sure that some of the mid to cheap range signal generators out there are just the 2206 in a shiny box.

With the advent of cheap multimeters that have reasonably frequency testing on them, graduated controls, once deemed very important in such a device, are becoming a much less required feature for some.

[Paul Perry (Frostwave)]

I'm sure that some of the mid to cheap range signal generators out there are just the 2206 in a shiny box.

I suspect that too.
Before that, standard was a phase shift oscillator tuned either by a twin gang pot (common) or a twin gang tuning condensor (cap) from a radio (smoother, won't wear out, but needs to be a high impedance circuit) with a thermistor to stabilise the amplitude. Which is what was the foundation of HP, which now makes crap plastic printers.