I would call Cinemag or email them and ask what zobel parts are required. Just in case. But the rest should be the same.
UPDATE: I did finally get back to this project. I got some Mogami quad console wire from Redco for the pot wires. And ran shielded wire for everything off the board. I removed paint behind the front panel to ground the pot enclosures. Now I got a working preamp for condensors!!! I can put the lid on with no hum!
As DMP stated tho I wouldn't have ANY trouble prolly with an external Power Supply...
Still have a couple issues. If I use a dynamic mic it hums even getting the lid close to it LOL! And nasty hum if phantom is engaged. But I only tried an old EV mic on it to test. I think my phantom supply needs some work.
My Eisen pres have a 47UF electrolytic and a .1 bypass cap from the phantom resistors to ground. Do I need that? I even tried a new power transformer same deal. And channel 2 is noisier even tho the wires are shorter...
Also the 1 meg pot is real touchy. I achieve max gain at about 1/3 throttle. Need to work on that. The original has a 1 meg resistor across the input iirc? Will try that. And another tip: 20 DB pad is TOO much! 10 DB is prolly better.
It doesn't seem to overload on loud sources as I had thought it might. Maybe no pad is required at all. But didn't try drums yet.
But it sounds great! Thanks Mnats. Just a little more experimenting left. And learned a bunch. Thanks for the tips DMP! Having fun with my MNATS 2-1108!!!!
It doesn't sound dark at all. Sounds totally high end. Kinda surprised with those antique UTC's. Gotta test it some more tho obviously. And best of all none of my friends have one of these. They are all gonna make me bring it with when I go back to NY. LOL
John
EDIT: OH and the impedance switch does work. It changes the sound somewhat. On a CAD m179 it gives it a slight bass roll off and a little softer in the highs. But on that mic 500 ohms sounds beefier. And this has plenty of gain for a condenser with lots of room to spare. Fear not... LOL
Horrible pics I know... My camera was stolen and got a cheapey for now to tied me over. This is what it looks like now:
MU can: