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redhawk668

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  1. Yeah, sometimes life get's in the way. The one offered on eBay looks like it's based on my Rev. C design. It seems they changed a few things, rerouted some traces, but the basic design is still the same. I recall I've tested my Rev. C design and it didn't work. But, I do recall I've corrected that error in the design. So, I've checked my PCB design today and I've noticed the error has indeed been corrected. I've ordered some PCB's based on this corrected design and will build one and test it. If it works, I'll put it on sale on my Tindie webstore. It will be fully assembled PCB.
  2. Due to personal circumstances I haven’t been able to spend time on this. Things are looking better now, so I’ll be back on this. I didn’t forget about it.
  3. All of the SMD components are soldered on top of the little board, with the 74LS on top of the PC, you can stick it in and solder it to the PCB. My first draft was a little PCB that was piggybacked on top of the IC. That means you have to bend the needed pins upwards with all risks of breaking them. The only drawback of Rev. A is, you need a really thin PCB, like 0.6 mm to have the pins sticking out far enough. My new Rev. C is a 2 layer PCB with a TSSOP-14 IC + resistors on top and the capicators on the bottom. As this uses header pins to insert it in the socket, the PCB can be normal thickness. It also fits within the DIP-14 footprint.
  4. Yeah, cosmetic issues. But, it looks better when corrected.
  5. Thanks, I've corrected the issues. Will order some of these for testing.
  6. Ok, this is the Rev. C. I've managed to fit everything within the DIP-14 footprint. IC + resistors on top and capacitors on the bottom. Will order some of these soon and test them.
  7. I think there is a way to keep the DIP footprint, put some of the components on the bottom (second layer) of the PCB. So, IC on top with the resistors and the capacitors on the bottom. I'm using machine header pins, so there is clearance between the socket and the PCB. Then, it all should fit within the DIP footprint. That'll be Rev. C.
  8. Well, the passive components are 0603 footprint. That is still solderable by hand, I’ve tried to fit it all within the DIP footprint, but that means I have to switch to smaller footprints for the passives, it also needs space for the routing of the tracks. So, this design is the best compromise IMHO. This can still be soldered by hand, so kits could be possible too.
  9. Ok, Rev. B of the Delay Line. Now fully SMD. Can be made with standard PCB thickness of 1.6mm, so cheaper to manufacture and could be made with a pick and place machine. The IC is in TSSOP-14 package, just fits between a DIP footprint rotated 90 degrees. Board is routed. Now, I need to order some of them for testing. When succesful I can put them on sale at my Tindie store.
  10. This is the address of my store: https://www.tindie.com/stores/redhawk6682020/ Keep an eye on it, will be available soon. The PCB that will go on sale will be ENIG finish and fully SMD. Rev. A design works, but 0.6mm PCB's are a bit pricey, the Rev. B will be fully SMD and will go on sale in my Tindie store soon.
  11. I've made a bit of a rework of the little board and I had some PCB's made. It works perfectly and fits nicely in a 600XL. Should also fit in an 800XL without problems. I've managed to put everything on top of the PCB, so no bending of pins necessary. It does require good soldering skills, because of the SMD stuff, but the IC is easy to solder. When assembled it's basically a plug 'n play solution. I will put this soon on my Tindie store for sale if people are interested.
  12. For anyone who is interested: https://github.com/redhawk668/Atari-CO60472-Delay-Line-Replacement The link to my github.
  13. I will share the designs of this little PCB on my github.
  14. The little PCB I made from the Polish schematics works! I love it, from totally dead with a black screen back to working order. Great!
  15. Ok, I took the Polish schematics and used it as a template to create a little PCB out of it. PCB's are being made at this moment and I hope to test those ASAP. If they work I'll release them on my Github. I might even sell a few of them from my Tindie store.
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