Underthebigtree
Well-known member
A couple of weeks back, I finished the first of my Gyraf Pultecs:
It worked perfectly the first time I powered it up, which is a miracle for me. Just a couple of comments on construction: I used nearly all matching polypropylene caps from Digikey. In order to get so many in the same family, I had to use 400V caps, which take up a ton of room. As a result, they are soldered to both sides of the board. I used the Fastron inductors from Mouser, and a pair of Amveco 62082 toroids for the power supply, as per another thread around here. For the coupling cap, I found some fancy shmancy high grade cap at Parts Express, for about $4.
As soon as I powered the unit up, I was blown away by the smoothness of the EQ. It did exactly what I hoped it would - created gentle curves that seem to sound good no matter what. I was shocked at how much midrange I could add without it sounding edgy.
I'm currently creating the ambient backgrounds for the upcoming James Bond video game "From Russia with Love". For lo tech high tech, I ran tons of servo motors, telexes, manual typewriters, etc. out of Pro Tools and into the Pultec, then into a Revox PR99 1/4" at 15 ips, then back into Pro Tools. Instant early 60's vibe.
Thanks to Jakob and Gustav for the design and boards. This device truly sounds great, and I'm looking forward to building another 4 units for use in my studio.
The other project is more prosaic, but definitely cool. I spent 4 weekends cleaning all the crap out of my garage, then build a workbench, put up pegboard, and organized everything. As a result, I was able to move my electronics out of the studio and into the garage, making a far better place to work, and cleaning up the studio mess at the same time. Here's my new DIY space:
It worked perfectly the first time I powered it up, which is a miracle for me. Just a couple of comments on construction: I used nearly all matching polypropylene caps from Digikey. In order to get so many in the same family, I had to use 400V caps, which take up a ton of room. As a result, they are soldered to both sides of the board. I used the Fastron inductors from Mouser, and a pair of Amveco 62082 toroids for the power supply, as per another thread around here. For the coupling cap, I found some fancy shmancy high grade cap at Parts Express, for about $4.
As soon as I powered the unit up, I was blown away by the smoothness of the EQ. It did exactly what I hoped it would - created gentle curves that seem to sound good no matter what. I was shocked at how much midrange I could add without it sounding edgy.
I'm currently creating the ambient backgrounds for the upcoming James Bond video game "From Russia with Love". For lo tech high tech, I ran tons of servo motors, telexes, manual typewriters, etc. out of Pro Tools and into the Pultec, then into a Revox PR99 1/4" at 15 ips, then back into Pro Tools. Instant early 60's vibe.
Thanks to Jakob and Gustav for the design and boards. This device truly sounds great, and I'm looking forward to building another 4 units for use in my studio.
The other project is more prosaic, but definitely cool. I spent 4 weekends cleaning all the crap out of my garage, then build a workbench, put up pegboard, and organized everything. As a result, I was able to move my electronics out of the studio and into the garage, making a far better place to work, and cleaning up the studio mess at the same time. Here's my new DIY space: