Messages

Depending on the PCB array, V-score does not always work.
V-score is usually an upcharge for fabs the panalize your design with others.
If you V-score you need to pull back the copper.  Check your fab house for restrictions.
There are entire web pages devoted to both V-score and mouse bites and it's valuable info if you use any of those methods, along with your fab house specifications.

The term is mouse bite, yeah...it really is haha
Google PCB mouse bite and you'll have all the info you need.
Josh

I started using IDC connectors and ribbon for some of the bigger stuff I have been designing.  The same as what eurorack uses.  They are easy to custom size your own if you have a vise.  There is plenty of info on those on the interweb.

You can do it without using a bi-polar supply.

Grab a breadboard and search google for some PT2399 circuits utilizing CV and work it out

Look how CV is implemented for delay time in the PT2399 designs used in synth.

When using Arrow you have to look at the ship date of each component which I think is on the right-hand side on the selected component page.
While it may ship overnight, that's relative to the actual ship date from wherever that selected component is coming from, often from overseas.

Tayda 3362

You have to love it and enjoy the rewards that come with it that are not monetary.  There are far better ways to make money.

Haha, no worries! It was more just trying to make an observation.  I've seen worse and my comparison is against ones I have, so I got lucky on those I think, which look practically new.

WOW

Resurrecting this thread from the dead...carrying on the torch

The RE-201 continues its journey...

I met up with CJ to buy the unit in this thread.  It was great meeting CJ and buying the RE-201 was a bonus

I did get a chance to pull the unit apart and continue some troubleshooting on it.

I checked some things like making sure the tape head oscillator circuit was working, checking some voltages through the circuit, and running a square wave through it and oscilloscope probing.

I then used the mic input to do the audio probing as the instrument input wasn't strong enough.  When listening with an audio probe I do have some wet signal on the echo volume pot.  The most I get is a weak reverby/slight slapback delay that you can get to warble by adjusting the repeat rate pot. (probing the echo volume pot lug)  The signal is then reduced to nothing as it works through the rest of the circuit.
There is absolutely no feedback and it can't self-oscillate.

I'm not sure that all the replay heads/switch are actually working but that's something to figure out later.  Unfortunately, all the heads are fairly worn from years of use, but they may still be functional and it is encouraging that there is some recorded wet signal at all.

I'd like to do some more testing but I'm fairly certain the next step is a full recap and pot cleaning/checkup. There are many electrolytic caps in the signal line on these.  I haven't looked up when this one was built but I'm sure it is older than my other RE-201.  The service manuals are pretty hard to read for the component layout etc from years of photocopied copies so I will do my best to document the recap as the info on the net is absent.

It's a bit of a project so I'm sure progress will be slow as I have actual "work" to take care of

Josh

Don't assume anything is right on a build that doesn't fire up the first time.

Buy two of everything.

Get well soon Brian!
Thoughts and prayers...

Josh

The best thing about the Arduino is the community and the available libraries.  I have used the Arduino for fun stuff like temperature monitoring etc with a OLED display etc and also for getting into using it for attiny stuff.

There is such a high level of abstraction that hides a lot of the interworkings of what is happening.

I have since been using PICs for everything and am far happier.  The learning curve is far steeper, but you'll actually understand what is going on instead of copying and pasting someone's forum code, hoping it works, and have no idea how to fix it when it's not.

I would recommend these tutorials, they are excellent for the kind of stuff you want to do.  Just my two cents... Coming from the arduino platform...
http://www.gooligum.com.au/pic-tutorials

Arduino stuff is great and there are a ton of cool projects, pick your poison I guess...

Josh

I would never relate it to a sweatshop personally, but keep in mind that when a hobby becomes a business, it is much less fun...