Grommes / Western Electric G5M Tube Mixer Mods

tablebeast · 9th August 2005, 06:55 AM

HI, I'm new here and I just aquired a cool device. Its a Grommes / Precision Electronics / Western Electric G5M Tube Mixer. Its a lot like the Altec 1567 Tube mixer but has a lot of important improvements. It has 5 transformer balanced mic inputs, , a line input, tube EQ, and a master gain stage. Basically I want to refresh and modify it. I would like to install DI inputs bypassing the transformer and direct outs for each of the 5 mic channels. It uses both sides of a 12AX7 per channel so I assume there should be sufficient gain for the direct outs. I want to use this as the front end for my DAW. I want the individual outputs for use recording drums and I want to use it as a mixer in its natural state for overdubs, utilising multiple mics into one output. What I'm looking for is any help with this. I could use a schematic if there is one out there. Maybe one of you guys has one of these? How would I go about installing the mods on this? Thanks in advance guys.

Jesse Mesa-Savage

kftool · 8th February 2008, 11:45 PM

Hi guys, I have a schematic for the above mixer along with a few of them.

reply if you are so inclined.

Ken fritz, Richmond, VA

tubewade · 8th February 2008, 11:57 PM

I have one, but have never tried to modify it. Just used it as is.

A schematic would be very much appreciated. If you want to post it here or send to wadenjulie at netzero dot net I would be very grateful.

battles · 26th January 2010, 01:21 PM

Quote:

Originally Posted by kftool

Hi guys, I have a schematic for the above mixer along with a few of them.

reply if you are so inclined.

Ken fritz, Richmond, VA

Hey Ken,

Hope you don't mind me contacting you this way. Any chance you could email me a copy of that Grommes G5M schematic? My address is : ryanpaulyoung@hotmail.com

Also, do you happen to know what type of input transformers it takes / WHERE in the world to get them?

Thanks for any advice you could offer, I appreciate your time.

Cheers,
--ryan

DaveInVA · 27th January 2010, 04:03 PM

That's a nice mixer, My Dad was General Manager for Grommes back then. He had started there as an Engineer in the 50's, left and then went back there later. I also have the schematic and even the sales spec sheet packed up around here somewhere.

Dave

battles · 27th January 2010, 06:19 PM

Oh sweet, yah both of those would be wonderful. I found out yesterday that I need either T1-L or T1-LA input transformers. Any idea where to might locate some?

Thanks so much for your help.

Wavebourn · 27th January 2010, 06:40 PM

Quote:

Originally Posted by kftool

Hi guys, I have a schematic for the above mixer along with a few of them.

reply if you are so inclined.

Ken fritz, Richmond, VA

Hi Ken;
I sent you e-mail.
Would you be so kind to send me a schemo?

Anatoliy

AuroraB · 27th January 2010, 08:32 PM

Now - THAT's a set of schematics I'd really like to have! ??

little-O · 23rd March 2010, 07:57 PM

If anyone has a G5M that is collecting dust and not seeing much use, please PM me or email me. I've been on the hunt for one. I wish to do some mono recording with it.

tubegetter · 25th May 2010, 11:17 PM

That makes two of us!

Anyone that is looking to seel a GM5 please PM me here as well. Thanks!

Quote:

Originally Posted by little-O

If anyone has a G5M that is collecting dust and not seeing much use, please PM me or email me. I've been on the hunt for one. I wish to do some mono recording with it.

9th August 2005, 06:55 AM	#1
tablebeast diyAudio Member Join Date: Aug 2005	Grommes / Western Electric G5M Tube Mixer Mods HI, I'm new here and I just aquired a cool device. Its a Grommes / Precision Electronics / Western Electric G5M Tube Mixer. Its a lot like the Altec 1567 Tube mixer but has a lot of important improvements. It has 5 transformer balanced mic inputs, , a line input, tube EQ, and a master gain stage. Basically I want to refresh and modify it. I would like to install DI inputs bypassing the transformer and direct outs for each of the 5 mic channels. It uses both sides of a 12AX7 per channel so I assume there should be sufficient gain for the direct outs. I want to use this as the front end for my DAW. I want the individual outputs for use recording drums and I want to use it as a mixer in its natural state for overdubs, utilising multiple mics into one output. What I'm looking for is any help with this. I could use a schematic if there is one out there. Maybe one of you guys has one of these? How would I go about installing the mods on this? Thanks in advance guys. Jesse Mesa-Savage

8th February 2008, 11:45 PM	#2
kftool diyAudio Member Join Date: Feb 2007 Location: Richmond, Virginia, USA	Grommes g5m mixer Hi guys, I have a schematic for the above mixer along with a few of them. reply if you are so inclined. Ken fritz, Richmond, VA

27th January 2010, 08:32 PM	#8
AuroraB diyAudio Member Join Date: May 2001 Location: Norway, -north of the moral circle..	Now - THAT's a set of schematics I'd really like to have! ?? __________________ While the Lie leapt from Bagdad to Constantinopel, the Truth was still looking for it's sandals!

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Western Electric 16A Plans	korneluk	Multi-Way	31	17th May 2012 04:44 PM
Western Electric 374A	john	Tubes / Valves	4	21st December 2005 03:17 PM
Western Electric 300B	serengetiplains	Tubes / Valves	4	16th December 2004 06:16 PM
Western Electric transformer	contaxchen	Swap Meet	0	22nd March 2004 02:54 AM
Western Electric	PassFan	Tubes / Valves	0	26th April 2003 01:09 PM


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

8th February 2008, 11:57 PM	#3
tubewade diyAudio Member Join Date: Jun 2007	I have one, but have never tried to modify it. Just used it as is. A schematic would be very much appreciated. If you want to post it here or send to wadenjulie at netzero dot net I would be very grateful.

27th January 2010, 04:03 PM	#5
DaveInVA diyAudio Member Join Date: Sep 2002 Location: VA	That's a nice mixer, My Dad was General Manager for Grommes back then. He had started there as an Engineer in the 50's, left and then went back there later. I also have the schematic and even the sales spec sheet packed up around here somewhere. Dave

27th January 2010, 06:19 PM	#6
battles diyAudio Member Join Date: Jan 2010	Oh sweet, yah both of those would be wonderful. I found out yesterday that I need either T1-L or T1-LA input transformers. Any idea where to might locate some? Thanks so much for your help.

23rd March 2010, 07:57 PM	#9
little-O diyAudio Member Join Date: Dec 2005 Location: Toronto	If anyone has a G5M that is collecting dust and not seeing much use, please PM me or email me. I've been on the hunt for one. I wish to do some mono recording with it.

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read