No, the cap was better than a big fat PP3 battery .... not necessarily all batteriesNeal wrote:Who would have thunk it? A cap better than a battery....tisk!
26 pre
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IslandPink
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#61
"Once you find out ... the Circumstances ; then you can go out"
#62
Or all caps, or in any other circuit, in any other system. Would make life simpler if there were absolutesIslandPink wrote:No, the cap was better than a big fat PP3 battery .... not necessarily all batteriesNeal wrote:Who would have thunk it? A cap better than a battery....tisk!
Whenever an honest man discovers that he's mistaken, he will either cease to be mistaken or he will cease to be honest.
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pre65
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#63
Some long while ago I lashed up a DC blocker to use with Pre3.
I've been using it with 26 pre, and following advice I've modified it a bit with an X2 cap on input and output. I had a couple of Phillips 220n X2 caps in the spares box so in they went.
Now, I may be imagining this, but I've just plugged it in, and with 26 pre and 833A amps I swear I can hear a slight improvement in clarity. Must admit I was not expecting that.
Next plan is a dedicated DC blocker for each 833a amp.
I've been using it with 26 pre, and following advice I've modified it a bit with an X2 cap on input and output. I had a couple of Phillips 220n X2 caps in the spares box so in they went.
Now, I may be imagining this, but I've just plugged it in, and with 26 pre and 833A amps I swear I can hear a slight improvement in clarity. Must admit I was not expecting that.
Next plan is a dedicated DC blocker for each 833a amp.
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
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Mike H
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#64
From my recent testing of transformers inductance versus DC, I found that for one non-gapped example (just to see what happens, actually a p-p OPT, but basically made the same as a large mains, for example) its inductance was reduced to half its AC value at ONLY 10.5 mA of DC!
Just did a quick calc and that would mean if there's just half a Volt of DC offset on the mains supply, say, and the DCR of the primary is 50R, DC = 10mA. Any good sized TX is almost certainly < 50 DCR!
Just did a quick calc and that would mean if there's just half a Volt of DC offset on the mains supply, say, and the DCR of the primary is 50R, DC = 10mA. Any good sized TX is almost certainly < 50 DCR!
"No matter how fast light travels it finds that the darkness has always got there first, and is waiting for it."
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pre65
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#65
As the 26 pre is out of the system for a bit I'm giving it the once over.
The input cap was a 0.22uf Soniqs, but should really have been a tad lower. I've found a couple of 0.1uf Russian K73-16 caps in my box, and comments on the web (by some) suggest they are good performers so I've soldered them in place.
Will have to wait now for any appraisal.
The input cap was a 0.22uf Soniqs, but should really have been a tad lower. I've found a couple of 0.1uf Russian K73-16 caps in my box, and comments on the web (by some
) suggest they are good performers so I've soldered them in place.Will have to wait now for any appraisal.
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)