Tag: 4049

  • Another fail!

    Here is a UBE Screamer with blend knob. I left a resistor out of the mixer and mixed up the Blend and Gain labels.

  • UBE Screamer 1.1.1 build

    Built and tested the new version of the UBE Screamer PCB. Everything is working! Sounds great. This is a good alternative to the standard TS-808 and other overdrives if you’re looking for something a little different. Does great low gain sounds. I built this in a 1590B enclosure from Tayda. I got most of the […]

  • UBE Screamer 1.1.1

    UBE Screamer 1.1.1

    This is an update of the UBE Screamer board. Same circuit just revised. I had these boards fabricated at PCBWay.com. The quality is very great! The UBE Screamer is a very interesting take on the Ibanez Tube Screamer by RunOffGroove.com. It’s the general circuit topology of the TS-808 but uses CMOS inverters in place of […]

  • 22/7 PCB Order

    22/7 PCB Order

    I just got these PCBs in the mail from https://www.pcbway.comPCBWay.com. I’m impressed with the quality. This is an update of my my 22/7 PCB. I made a couple small improvements. The 22/7 is a CMOS based Big Muff. A very cool and innovative circuit by RunOffGroove.com. Did I mention they just turned 20 years! If […]

  • RunOffGroove UBE Screamer

    RunOffGroove  UBE Screamer

    This is another great RunOffGroove project. It’s a unique twist on the classic Ibanez Tube Screamer. The UBE Screamer replaces the op-amps and transistor stages in the Tube Screamer circuit with inverters from a 4049UBE hex inverter. I built this from a PCB I designed. The board is project on OSH Park. Check out the […]

  • 22/7 on OSH Park

    22/7 on OSH Park

    Built and test this second version of the 22/7 by RunOffGroove.com. Sounds good. This is a great alternative for Big Muff fans. The OSHPark project is public and verified. 22/7 is a Big Muff built around CMOS inverters in place of the transistors used in the traditional BMP circuit. The CMOS inverters have a tube […]

  • Harvesting Parts!

    Harvesting Parts!

    Harvesting parts from these old PCBs. I had this need for a A100K pot and Christmas 🎄 has holding up the deliver from Tayda Electronics. So I started digging through my bin of old projects that never made it into a box 📦. I didn’t my ideal A100K pot, it would have been 16mm with […]

  • UBE Screamer PCB v1.1

    UBE Screamer PCB v1.1

    This is the second version of the UBE Screamer board. This version fixes a mistake with the reverse polarity diode. I’m calling this ready for public consumption and will add it to the OSH Park projects pages soon. The enclosure is grounded through the jacks. The bottom cover though doesn’t make an electrical connection to […]

  • UBE Screamer by RunOffGroove

    UBE Screamer by RunOffGroove

    This UBE Screamer by RunOffGroove.com is a unique twist on the venerable Ibanez Tube Screamer TS-808. It replaces the op-amps and transistor stages with a single hex inverter using an inverter in place of each op-amp and transistor. This has a great sound that stands up to all of the other overdrives. Read more about […]

  • More OSH Park PCBs

    More OSH Park PCBs

    These are some more PCBs from OSH Park. There is an IC Big Muff, Tube Steak, and a Woolly Mammoth. The Tube Steak I created from a schematic posted by Charlie Barth at Moosapotamus.net. Tube Steak Fuzz is a cross between the Tube Sound Fuzz, and Way Huge Fat Sandwich. Here’s a link to Charlie’s article […]

  • Good Articles on CMOS Chips in Stompboxes

    Here are some good articles on using CMOS chips in stompboxes. http://www.parasitstudio.se/building-blog/cmos-workshop-part-1 http://www.parasitstudio.se/building-blog/cmos-workshop-part-2-square-wave-fuzz http://www.parasitstudio.se/building-blog/cmos-workshop-part-3-octave-down