bruno2000
Well-known member
Greetings folks,
Here's a project I've been working on and off for a couple of months now. I call it a 1073 "Lite" since it has no filters, no line input, and only 2 selectable frequencies for the Lo shelf. It has 2 selectable frequencies for the top shelf, including 5k to brighten up those pesky dull guitars, and 11 mid band frequency choices. This one has the Carnhill input transformer, and Ed Anderson's output, but there's a footprint for Ed's input transformer as well. I'm building one up with Ed's input, and will post pictures when it's done.
The bottom board contains the mic pre, the mid band EQ components, the output section, and the power supply parts. The top board has the 2 EQ amps, the hf and lf caps, and all of the switching. They are connected together by a 20 pin header, and a 10 pin ribbon cable.
The power is compatible with the traditional 500 rack +/- 15VDC, or you can run it from the +24VDC power available from the 51X rack, by leaving out some parts, and installing a couple of jumpers.
I only had a few boards made for the prototypes, but if there's any interest, I'll do another run to sell.
Best,
Bruno2000
Here's a project I've been working on and off for a couple of months now. I call it a 1073 "Lite" since it has no filters, no line input, and only 2 selectable frequencies for the Lo shelf. It has 2 selectable frequencies for the top shelf, including 5k to brighten up those pesky dull guitars, and 11 mid band frequency choices. This one has the Carnhill input transformer, and Ed Anderson's output, but there's a footprint for Ed's input transformer as well. I'm building one up with Ed's input, and will post pictures when it's done.
The bottom board contains the mic pre, the mid band EQ components, the output section, and the power supply parts. The top board has the 2 EQ amps, the hf and lf caps, and all of the switching. They are connected together by a 20 pin header, and a 10 pin ribbon cable.
The power is compatible with the traditional 500 rack +/- 15VDC, or you can run it from the +24VDC power available from the 51X rack, by leaving out some parts, and installing a couple of jumpers.
I only had a few boards made for the prototypes, but if there's any interest, I'll do another run to sell.
Best,
Bruno2000