Others learn from the exchange. You wouldn't be the only one with these questions.
And even now you still don't understand why that message of you was so wrong. RTFM you said. Yes let's just do that, practice what you preach. Read The ******* Manual. I give you a pointer to the most relevant part below.
Note that on this unit the master is at RHS as pointed out in the manual page 2 - 4.
It works in the way expected. Very often you do not earth ground what you are working on at the power supply. Your instruments do that (ie: scope or signal generator).
Indeed, multiple connections to the safety earth will create ground loops or worse, but that is not the essence of the disputed message.
Hello OmeEd,
My first comment was "It works in the way expected." In other words, as I described above.
The second part was addressing what I read in the manual (and excerpt you posted), and also applying it to normal bench practice. That is, we do not normally use the earth ground at the power supply. I gave the reasons why this is not normally done as well. Just for completeness.
Your point?
My first comment was "It works in the way expected." In other words, as I described above.
The second part was addressing what I read in the manual (and excerpt you posted), and also applying it to normal bench practice. That is, we do not normally use the earth ground at the power supply. I gave the reasons why this is not normally done as well. Just for completeness.
Your point?
Actually, I was merely asking what your objection was to my post. So I ask again, what was your point. You responded to me.
Frankly, you are aware that moderators simply post as normal members unless we make it clear it is an official post, normally using this symbol:
Which I have not done. To the very best of my knowledge, I am acting accordingly as a normal member who had their post questioned.
Frankly, you are aware that moderators simply post as normal members unless we make it clear it is an official post, normally using this symbol:
Which I have not done. To the very best of my knowledge, I am acting accordingly as a normal member who had their post questioned.
As already mentioned, the disputed message was not about wether or not to connect to the safety earth.
I explained myself - for completeness.
If that is all you object to, why? Probably should drop this.
If that is all you object to, why? Probably should drop this.
No , AB with a EF2 Sanken output pair.
I studied the Luxman's -
most are a deluxe version of the Hitachi topology (below 1). The input stage is the typical Wolverine fair ,
the VAS is different (differential w/ current mirror) . Compensation is lead - lag + VAS miller (C707,711,717,719).
Close in THD to Wolverine - without the EF3 !
"Typical Luxman" is similar to the "Symasym".
(below 2) is a deluxe LUX .... .1PPM ! Add a Widlar mirror and the Wolverine input stage = lower than the Wolverine ! ZERO distortion.
Almost 15dB more gain margin at 20Khz without oscillation. The only circuit that can beat the Wolverine I know of.
Luxman does not need to be class A with that advanced feedforward 2 pole setup.
OS
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Hi OS,
What Luxman model is that one? I'm interested as I own a few Lux amps and I'm now very curious.
Luxman can be a pain to work on.
What Luxman model is that one? I'm interested as I own a few Lux amps and I'm now very curious.
Luxman can be a pain to work on.
That's a newer one - the A-007. Just a 50W Sanken TO-3P output stage.
The bulk of better old Luxman designs (LV series - 105/205) use the Wolverine IPS + a Hawksford cascode - w/LED's.
The luxman series is actually a Wolverine "grandparent" design. Many of my designs were inspired
by LUX tech. They have some GOOD engineers !!
(BELOW) ye olde (1973) M2000 amp. LUX Cult following - same as a sonance 260 -20 years later.
I've run this on the Wolverine OPS , People forget ..... the Wolverine can run ANY input stage!
OS
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The LUX 505/507-9 looks exactly like a typical Wolverine build - 6000$ perfect amp.
EF3 with 3-4 pair Sanken outputs. Most of these elite units are <.001% THD.
Similar circuit and construction to a Wolverine.
One could fetch $2-5K for a well built Wolverine. I only spent 250$ with spare parts for my
Wolverine to get a 2K$ amp. People underestimate the value of this DIY offering.
Stuart's monoblocks are easily worth 3-4K each !!! Yikes....
Can't forget the HAND WOUND (by a Japanese craftsman) 600VA trafo - (below 2)
Caps are custom (samwah - korea) 10Kuf 71V beauties !
OS
EF3 with 3-4 pair Sanken outputs. Most of these elite units are <.001% THD.
Similar circuit and construction to a Wolverine.
One could fetch $2-5K for a well built Wolverine. I only spent 250$ with spare parts for my
Wolverine to get a 2K$ amp. People underestimate the value of this DIY offering.
Stuart's monoblocks are easily worth 3-4K each !!! Yikes....
Can't forget the HAND WOUND (by a Japanese craftsman) 600VA trafo - (below 2)
Caps are custom (samwah - korea) 10Kuf 71V beauties !
OS
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If you have a look at the Stax DA-50 and DA-100 M, Stax did this also. However these monoblocks were biased into class A so much more idle current.
Also shipping weight for mass production would be a huge cost saving.....
You have alot of knowledge from a service point of view Anatech, I take it you spent quite alot of time on the soldering iron ?
aren't there errors in here? for example, looks like no DC bias applied at Q206 base!
Yeah , Q206 (should) go to Q205's collector. They missed some dots on the schema.
Ah , don't matter - I can't afford the LUX , but I sure know how it works.
We have the LUX beat well , anyways.
OS
I think OS had in mind that the full potential of Wolverine would require such speakers and most importantly human temptation fueled by alcohol at some good party would turn up the volume a little bit and a bit more leading to speaker disaster. I saw and heard it.