Wiesiek Lipowski wrote:Can I use LM334 instead of LM334Z here? What's the difference between them?
Greetings
This is the problem that I ran into. I have not seen JUST an LM334. It always had some kind of letter suffix on it and that suffix usually is the type of package design.
I am pretty sure my LM334D will function the same way as the "z", but instead of a 3 lead TO92 device, it is an 8 pin SO8 SMT package.
Here, take a look:
http://pdf1.alldatasheet.com/datasheet- ... M334D.htmlAs you see 5 of the pins are not used. I will just cut them off and attach longer lead wires to the needed 3 leads. So that is no biggie.
Writer Frog wrote:Be careful. These surface mount type devices may not survive an extended contact with a soldering iron.
I am an experienced tech, so that will not be an issue.
Theoretically speaking, the CCS is *NOT* in the signal path. It enforces the symmetry of the LTP inverter output while keeping the tubes at the optimal operating point.
The use of the solid state CCS should give you lower distortion.
I never delved too deep into the use of a CCS. The closest I been exposed to one, is in the use of SRPP pre-amp stages.
Well, it is nice to know the LM334 doesn't affect the audio signal. In the past I always had qualms about using 'sand' in my tube circuits. Lately I haven't been as picky when it comes to silicon rectifiers and in this case I am willing to give it a shot. As long as the signal doesn't go through it and hence is 'degraded' by it, I am good :).
Thanx,
Geo
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