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User Manual request for Cambridge 673 Dual Amps
Hey,
Long time no speak all!
Does anyone have a copy of the user manual for the CT 673 Dual MicroMax amps they could share by any chance?
I reached out to Novanta/CT but didn't get anywhere with them.
It's mainly to check pinouts + mating connector PN's, and to see what some of the jumpers are for.
Image attached of the driver in question.
https://neurophysics.ucsd.edu/lab/Cambridge_drivers.pdf
Many thanks in advance to anyone who could help.
All the best,
Dan
- There is no such word as "can't" -
- 60% of the time it works every time -
Hypothetically speaking, would these amps be used to drive a set of galvos equipped with absolutely massive mirrors that would be appropriate for a certain CVL that we saw at UKLEM recently?
Asking for a friend...
Adam
Creaky Old Award Winning Bastard Technologist
please see attached
More coming
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Senior Member
Heh.Originally Posted by buffo
Hypothetically speaking, would these amps be used to drive a set of galvos equipped with absolutely massive mirrors that would be appropriate for a certain CVL that we saw at UKLEM recently?
Asking for a friend...
Adam
I like your thinking Adam!
Unfortunately it’s for another project; 3mm aperture on this one though
I do have a plan to get some 30mm CA wagglers for next LEM though.
- There is no such word as "can't" -
- 60% of the time it works every time -
Creaky Old Award Winning Bastard Technologist
All nearly of them use the same demodulator circuit for the photodiode currents
Drive cable and Feedback cable have separate grounds and shield braid,
From the attached you should be able to figure out the pinouts by reverse engineering the board.
"AGC" is drive to the position sensor led.
Galvo LOW returns via the obvious current sensing resistor.
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When I still could have...
Creaky Old Award Winning Bastard Technologist
The two sets of jumpers circled in the attached pics will go direct to the differential inputs, as they are used to reverse input polarity.
I sent a request to a friend in Cali, if anyone has the manual he does.
We shall see.
Steve
Last edited by mixedgas; 04-25-2025 at 14:50.
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Hey Steve,
Many thanks for the information so far; much appreciated!
All the best,
Dan
- There is no such word as "can't" -
- 60% of the time it works every time -
Creaky Old Award Winning Bastard Technologist
Mr. Briggs,
I have your requested files attached
There are some others, that I'm not comfortable posting. PM me with a current email.
I would not power it up without a review of the other docs.
This thing is a beast.
Steve
Last edited by mixedgas; 04-25-2025 at 21:17.
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...
Senior Member
Hey Steve,
Wow! Thanks for the info so far; you are a gentleman and a scholar!
PM sent.
And after a quick scan of the manual, I'm glad I didn't power it up yet!
Thanks for the comprehensive info. Very much appreciated!
All the best,
Dan
- There is no such word as "can't" -
- 60% of the time it works every time -
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