ruffrecords
Well-known member
If you double up you need to do it to both heater leads. Strictly speaking neither of them is a ground.
Cheers
Ian
Poor Man's Tube Mixer
- Thread starter ruffrecords
- Start date
Help Support GroupDIY Audio Forum:
Cheers
Ian
ruffrecords
Well-known member
Pictures of the latest plug in mic channel for the poor man's tube mixer. which I have just finished testing. This module has stepped mic gain, phantom/pad/line and phase switches, two band stepped REDD EQ with three frequencies per band, pan pot and two echo sends all in a 3U by 70mm wide module.
Front:
Front panel PCB rear view showing EQ inductors:
Complete module:
This version has an OEP mic transformer but there will be a version with the Sowter/Cinemage/Jensen transformer footprint instead.
Cheers
Ian
Front:
Front panel PCB rear view showing EQ inductors:
Complete module:
This version has an OEP mic transformer but there will be a version with the Sowter/Cinemage/Jensen transformer footprint instead.
Cheers
Ian
ruffrecords
Well-known member
It is a long time since I had anything to report on the Poor Man's Tube Mixer but the first custom build is now complete and will soon be heading for Los Angeles.
This one has four mic pres each with two band EQ with three frequencies per band , a pair of post fader echo sends and a pan as well as the usual stepped gain control and phantom, mic/line, pad and phase switches. Direct out can be switched from pre EQ to post EQ from the fader panel which also provides mute and solo switches. There are a couple of echo returns and a master section with master fader, monitor and headphones level controls plus a pair of SIFAM VU meters. Lastly there is a dual copto compressor module (linkable for stereo). PSU is external.
Backside:
Next up is another custom one with 12 line inputs.
Cheers
Ian
This one has four mic pres each with two band EQ with three frequencies per band , a pair of post fader echo sends and a pan as well as the usual stepped gain control and phantom, mic/line, pad and phase switches. Direct out can be switched from pre EQ to post EQ from the fader panel which also provides mute and solo switches. There are a couple of echo returns and a master section with master fader, monitor and headphones level controls plus a pair of SIFAM VU meters. Lastly there is a dual copto compressor module (linkable for stereo). PSU is external.
Backside:
Next up is another custom one with 12 line inputs.
Cheers
Ian
ruffrecords
Well-known member
Here is a close up:
Cheers
ian
Cheers
ian
L´Andratté
Well-known member
It´s making my brain melt.
What a vision, ruffrecords. I could write multiple lines of praise here, but let me just say this is the most compelling work I have seen on GDIY for some time!
(Btw. channel 3 Gain and HF knobs are swapped...
)
What a vision, ruffrecords. I could write multiple lines of praise here, but let me just say this is the most compelling work I have seen on GDIY for some time!
(Btw. channel 3 Gain and HF knobs are swapped...
)
ruffrecords
Well-known member
well spotted, I better fix that before I ship it. Funny thing is, the client was over here on tour last month and popped in with his band to have a play with it. Nobody noticed the swapped knobs.
Cheers
Ian
Cheers
Ian
