Yard sale, thrift store, and curb finds

to bad it isn’t in a little better shape !

I managed to save a pair of these from the dumpster



Good modular PSUs perhaps?

1 Like

At least, with 65Amps (minimum) per rail, you are sure you can’t overload them…

But you should check with a scope the “quality” (ripple) of the current they provide, they usually aren’t great at that, and they don’t really need because that 12V will be “downstepped” and regulated on the motherboard.

2 Likes

Any good resources on how to do this for someone who is still learning their way around an oscilloscope?

Connect GND and output to your scope.
Most computer PSU’s will need some load to work correctly.

You have a modern digital scope ?
Just hit the “auto” button and look at the result on screen.
Look at the display to see how much one division (one square of the grid) is, usually displayed as XXX V/Div or XXX mV/Div. It should also display either min/max voltage, or average and PP voltages.
This will give you an idea of how well it is regulated.

With an analog scope, you’ll have to adjust manually the “timebase”, “center V” and “V/Div” controls to “zoom in” on the curve.

2 Likes

I got ideas.

4 Likes

feet gate with piezzo ?

I’m thinking reed switch

1 Like

I will be curious to see that

1 Like

Big bunch of yard sales in a nearby neighborhood today. I came away with:


A drum synth AND a keyboard synth for $3!

Cassette recorder, 50¢
And to go with it:

Box full of tapes for $1, who could refuse?
And finally:

Rolling computer desk, $5. I think it’ll be about perfect for the B2600 which right now is awkwardly perched atop a file cabinet.

7 Likes

Miaouuuu synth ! :+1:

4 Likes

Today i found this Stihl HS80 on the sidewalk. No really, i went to their door to ask :slight_smile:
They said it had been broken for years.


The primer valve got stuck, which is a common problem. 5 minute fix :slight_smile:

Not synth related but i had to show it off to someone :slight_smile:
This will certainly help me get more synth budget :slight_smile:

7 Likes

image

That sounds like a challenge.

8 Likes

Add a contact microphone and use it as a drum trigger for some fast rolls.

3 Likes

Already done… or at least someone has tried it…

3 Likes

Or add a piezzo on it :slight_smile:

2 Likes

LOL, You guys are amazing :slight_smile:

3 Likes

nice find , thats not a cheap item . but do you have hedges ?

2 Likes

I do not have hedges myself. But my clients do :slight_smile:
I have been doing gardening work untill i will go back to school hopefully in 2022 :slight_smile:

(I used to borrow my cousin’s equipment)

3 Likes


50$ Might be too rich for my blood at the moment. Sorely temped though.

5 Likes