Tri-Dented Schems

[Unbound]

Hi all looking to see if I can find-

Any manual/info for the ATrident Trimix sidecar.

Or a schematic for the channel - CB 9244 ISS 2.

I know the channel is related to the 80b and the 70 series...maybe one of those schems would help?

Thanks,
Aaron
Prelude Studios

 

[peterc]

Here are some links :

http://web.telia.com/~u31617583/

http://www.angelfire.com/la3/ssaudio/trimix_mkII_s70_input.html

Peter

 

[Rob Flinn]

As far as I was aware the sidecar was just extra input modules. Bo Hansen can probably verify this since he was a Trident dealer for many years.
I have most trimix diagrams including mk 1 & 2 input modules, but none of them show the serial numbers you quoted.

If all else fails try at the trident usergroup
http://groups.yahoo.com/group/TridentAudio/

 

[Unbound]

Yep the Trimix is extra input modules. I've got a 16 channel one, and that would be what is written on each channel, along with 'Trimix Input Module.' Thanks for the schems and the help.

Aaron
Prelude Studios
_______________
"The clash of ideas is the sound of freedom."
-Claudia LadyBird Johnson

 

[tubemonkey35]

Check out the stuff we have on the Trident Audio users group at yahoo.

Mk 1 modules where on the original Trimix and when they introduced the Series 70 they introduced the Mk 2 version of the module. Mk2 modules featured a Phase reverse for both XLR and line inputs as opposed to just XLR. PLus the modules were labled different on the buss assigns to now read 1-16 as the 70 was a 16 buss Trimix. The modules could be wired for either the 8 buss (Trimix) or the Series 70; this modular idea save manufacutring.

 

[Unbound]

Yeah I only have phase reverse for the mic input so I must have MkI modules. I'll check out the forum...I'm a fan of old Trident stuff anyway!

Thanks,
Aaron
Prelude Studios
______________
My fault, my failure, is not in the passions I have, but in my lack of control of them.
-Jack Kerouac

 

[tubemonkey35]

The Mk 2 Trimix /Series 70 is old Trident, these boards are the same; they are also like the 80 series only fixed high and low instead of switchable like the 80. A 70 is a 16 buss Trimix.

 

[Unbound]

Isn't the EQ slightly different on a 70 than on a trimix? Or maybe I'm wrong...My trimix has fixed shelves at like 10k and 120Hz I believe...I thought that was adjustable on a 70...maybe I'm wrong...

Aaron
Prelude Studios
______________
My fault, my failure, is not in the passions I have, but in my lack of control of them.
-Jack Kerouac

 

[tubemonkey35]

Nope, your wrong again the Series 70 is a large format Trimix, same modules interchangable between the consoles, you can wire them for 8 buss or 16. They just made the slight change to the phase reverse.

The 80 had selectable high and slow 10 or 15k on the high and 80 or 100 on the low. The Trimix / 70 has fixed high at 10k and 100 for the low.

You could order the Trimix as the standard 18x8x2 main section and add onto it with the 16 channel add on section and the optional add on TT patchbay. People liked the board so much and were ordering that way and people were requesting 16 buss, hence the Series 70 frame which was a Trimix setup as 16 buss instead of 8 buss. Same console sold as one complete unit instead of optional this and that.

You can do many upgrades to your Trimix / 70 input modules NE5534's in the fader buffedr instead of TL0s etc..

These modules were made to take those chips in spots but to cut costs they went straight TL0's

Easy upgrade making it even more like the 80.

You can mod the EQ to have selectable high and low like the 80.

 

[tubemonkey35]

The reason I know this stuff is because I have Trimix in the garage and a 70 inside the house.

 

[Unbound]

I'd be really interested in modding this out. I'm not a whiz like some people on this site, but I'd like to get this thing sounding spectacular. Any help would be appreciated, thanks so much tubemonkey35.

Aaron
Prelude Studios

 

[tubemonkey35]

Take some pics and email me them. I'll pm you my email.

 

[CJ]

Are those 3-dent compressors any good?

 

[Rob Flinn]

My trimix has about 33 mkI modules & 6 mkII modules, so they are definately interchangeable. I`m just looking for another 16 channel desk to bolt on the side, so I`ve got 55 inputs !! :wink:

 

[Rob Flinn]

Are those 3-dent compressors any good?

Thats a good question CJ. They seemed to get quite a mixed reception here when the thread was going on aabout them a while back. However, a friend was mixing an album recently at a studio which had a comprehensive range of compressors, & he really liked the trident. Not the cleanest thing in the world, but sometimes we like dirty !!!

 

[tubemonkey35]

I think the Trident comp might be a good DIY to try.

 

[Bo Hansen]

Aaron,

Here is some Trimix information for you:

The CB-9244 Issue-2 are a input module from the "MK1" genaration made around 1981 to 1983. (MK2 modules is made from 1983 and up, and are a updated module for series-70)

Here are the differnt between the "MK1" and MK2 input modules.

Microphone preamp.
MK1: the microphone transformer secondary connected (via one half of the gain potentiometer) to the not inverted input on the first op-amp. (as later S-80-B, C and broadcast versions)
MK2: microphone transformer connected to the inverted input on the first op-amp.

Line input.
MK1: unbalanced.
MK2: active balanced.

Phase reverse.
MK1: only on the microphone input.
MK2: both on the microphone and line input.

Insert return.
MK1: unbalansed.
MK2: active balanced.

EQ in/out.
MK1: only the eq boost/cut potentiometers disconected, the eq op-amps still in the signal patch.
MK2: true eq bypass, all eq circuits disconected.

--Bo

 

[tubemonkey35]

Bo, this info is great; I had not noticed that the EQ was true bypass on the MKII.

Bo you rule as usual.