gar381
Well-known member
Hi Guys
I am working on a Pre for a buddy of mine based on the "Eclipse C" micpre.
The original uses 6 Shadow 4 pole switches. 2 of them are -20db and -30db pads
one is a Mic/line switch and 3 are preamp gain switches which you can use in
any combination. Way to complex !! The gain device is a SPA-62 DOA.
In my version I am keeping the 2 pad switches dumping the mic/line switch
and changing the gain switch to a 11 position Grayhill and keeping the SPA-62.
Added is a 2pole 20Hz-250HZ Variable Hipass and a Fader amp/line amp with
Trafo out. These 2 stages are using gar6220 DOAs but OPA604s can sub in
as a variation. This is a split 24v situation as is being built as a 500 51x module .
This guy uses a 7341PC input trafo and a 7393PC output trafo. The JE-123 -SLPC
can be used for the output as this is the same transformer as the 7393PC.
This is the illustrator artwork print on the front panel.
I will convert to HPGL for FPE
Here are both versions.
The 7341PC input trafo on the OPA604 version is a custom
Cinemag wind left over from my Sphere/API sidecar project.
I'll post more as this project progresses.
GARY
I am working on a Pre for a buddy of mine based on the "Eclipse C" micpre.
The original uses 6 Shadow 4 pole switches. 2 of them are -20db and -30db pads
one is a Mic/line switch and 3 are preamp gain switches which you can use in
any combination. Way to complex !! The gain device is a SPA-62 DOA.
In my version I am keeping the 2 pad switches dumping the mic/line switch
and changing the gain switch to a 11 position Grayhill and keeping the SPA-62.
Added is a 2pole 20Hz-250HZ Variable Hipass and a Fader amp/line amp with
Trafo out. These 2 stages are using gar6220 DOAs but OPA604s can sub in
as a variation. This is a split 24v situation as is being built as a 500 51x module .
This guy uses a 7341PC input trafo and a 7393PC output trafo. The JE-123 -SLPC
can be used for the output as this is the same transformer as the 7393PC.
This is the illustrator artwork print on the front panel.
I will convert to HPGL for FPE
Here are both versions.
The 7341PC input trafo on the OPA604 version is a custom
Cinemag wind left over from my Sphere/API sidecar project.
I'll post more as this project progresses.
GARY