Current circlotron on two transistors. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Transistor power amplifiers
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A slight alteration of the previous scheme and the need to use ordered speakers led to an interesting use of the latter. It's about current.
This is the speaker itself.
And this is how the scheme turned out.
(click to enlarge)
As you can see, a simple redistribution of galvanization made it possible to turn on the speakers in a current way. Now every wire inside the circuit carries a unidirectional current including the loudspeakers. Instead of XLR, I put two RCAs at the input. This is a preparation for a future device with a current output. This scheme, as well as the previous one, does not require thermal compensation.
The question "what sounds better" is somehow not born here. This scheme is more lively, "tasty". But there is a condition. It is better to make power supply stabilized, because. a small background is heard (if the ear is brought to the speaker). This was not the case in the previous version. And an inexperienced person can easily mix up the wires going to the speaker. Therefore, if anyone wants to repeat it, for safety, it is better to put a plug on the output. Or just make active acoustics.
Author: George; Publication: cxem.net
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