Bi-Polar Gainclone Suggestion
There has been some discussion lately about the merits of inverting operation VS non-inverting operation for the GainClone circuit, so perhaps it is prudent to show that an opamp circuit can be switched either way as below.
I know the circuit given is configured for X1 gain, but circuit values can be suitably changed.
I did also see a similar circuit in WW/EW circuit years ago that used a pot instead of a switch as the polarity selector.
This gave +1 through 0 through -1 gain and polarity control, and was described as being useful for selecting reverb unit return signal polarity, but alas I forget the finer details - anybody have that circuit to hand ?.
Either of these two circuits implemented correctly may be suitable to give the luxury of choice of GainClone operating mode.
This circuit is of course perfectly suitable for line level polarity control, and could easily be incorporated into a preamp or cdp output stage.
Eric.
There has been some discussion lately about the merits of inverting operation VS non-inverting operation for the GainClone circuit, so perhaps it is prudent to show that an opamp circuit can be switched either way as below.
I know the circuit given is configured for X1 gain, but circuit values can be suitably changed.
I did also see a similar circuit in WW/EW circuit years ago that used a pot instead of a switch as the polarity selector.
This gave +1 through 0 through -1 gain and polarity control, and was described as being useful for selecting reverb unit return signal polarity, but alas I forget the finer details - anybody have that circuit to hand ?.
Either of these two circuits implemented correctly may be suitable to give the luxury of choice of GainClone operating mode.
This circuit is of course perfectly suitable for line level polarity control, and could easily be incorporated into a preamp or cdp output stage.
Eric.
Attachments
CONRAD CASES
Can you specify type or model? I went into Conrad's site but it's not easy to get to which models they carry.
Carlos
fedde said:
Can you specify type or model? I went into Conrad's site but it's not easy to get to which models they carry.
Carlos
Re: CONRAD CASES
Already in this thread once:
Conrad article 522945 and:
http://www.diyaudio.com/forums/showthread.php?postid=108716#post108716
carlmart said:
Already in this thread once:
Conrad article 522945 and:
http://www.diyaudio.com/forums/showthread.php?postid=108716#post108716
does anyone know the exact amount of heat each chip creates at full volume? (a maximum)
i was thinking of using this diagram to bridge and parellel 4 together (4 chips) per channel and tri amp them
this would give me 224 watts per channel, per speaker
and then i was going to make a seperate sub woofer driver (posibly with the same chips) and then use 4 car batteries in series to give me +-24v (approx.) and put it in my car (when i get one).
sound cool?
i was thinking of using this diagram to bridge and parellel 4 together (4 chips) per channel and tri amp them
this would give me 224 watts per channel, per speaker
and then i was going to make a seperate sub woofer driver (posibly with the same chips) and then use 4 car batteries in series to give me +-24v (approx.) and put it in my car (when i get one).sound cool?
Attachments
Check post 45 in this thread. Whole light bulb procedure explained.
http://www.diyaudio.com/forums/show...highlight=oscillation light bulb&pagenumber=3
Marc
http://www.diyaudio.com/forums/show...highlight=oscillation light bulb&pagenumber=3
Marc
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