Dear Sirs,
I would like very much to hear some opinion from people who have experience about powering the clock generator circuit with batteries.
I strongly think this could be a way to get wonderful clock stability and, in conclusion, exceptional sound.
Thank you very much indeed.
Kind regards,
bg
I would like very much to hear some opinion from people who have experience about powering the clock generator circuit with batteries.
I strongly think this could be a way to get wonderful clock stability and, in conclusion, exceptional sound.
Thank you very much indeed.
Kind regards,
bg
beppe61 said:Dear Sirs,
I would like very much to hear some opinion from people who have experience about powering the clock generator circuit with batteries.
I strongly think this could be a way to get wonderful clock stability and, in conclusion, exceptional sound.
Thank you very much indeed.
Kind regards,
bg
hi beppe61, I tried it with my clock, and I was not impressed.
Batteries can be noisy too.
😎
Dear Sirs,
thank you very much for your extremely kind and valuable replies.
I can only say that your comments have changed completely my belief.
I truly thought that batteries were "the cure" for most of digital problems.😱
And for the first time I see the word "noise" related to batteries.😱
I am sincerely upset.
Thank you very much anyway.😀
Kind regards,
beppe
thank you very much for your extremely kind and valuable replies.
I can only say that your comments have changed completely my belief.

I truly thought that batteries were "the cure" for most of digital problems.😱
And for the first time I see the word "noise" related to batteries.😱
I am sincerely upset.

Thank you very much anyway.😀
Kind regards,
beppe
beppe61 said:Dear Sirs,
thank you very much for your extremely kind and valuable replies.
I can only say that your comments have changed completely my belief.![]()
I truly thought that batteries were "the cure" for most of digital problems.😱
And for the first time I see the word "noise" related to batteries.😱
I am sincerely upset.![]()
Thank you very much anyway.😀
Kind regards,
beppe
Hi Beppe,
Batteries are a "cure" for other problems in vibrators.....
Elso Kwak said:
Hi Beppe,
Batteries are a "cure" for other problems in vibrators.....
I knew a bloke who converted his to mains power but it blew up before he could try it out !!!
beppe61 said:Dear Sirs,
I would like very much to hear some opinion from people who have experience about powering the clock generator circuit with batteries.
I strongly think this could be a way to get wonderful clock stability and, in conclusion, exceptional sound.
Thank you very much indeed.
Kind regards,
bg
this will scare you off even more
http://www.tnt-audio.com/clinica/regulators_noise4_e.html
read parts 1 to 4, good info and suggestions on low noise
Guido, good post. Nice to see someone went to the trouble of actually measuring battery noise. This has been a dirty little secrect for too long. Batteries are not perfect voltage sources.
They are chemical reactions. I like to think of boiling water as an analogy to the molecular conversions taking place. It's no panacea. On the other hand, it can easily solve ac related hum issues in some equipment.
jh
They are chemical reactions. I like to think of boiling water as an analogy to the molecular conversions taking place. It's no panacea. On the other hand, it can easily solve ac related hum issues in some equipment.
jh
hagtech said:Guido, good post. Nice to see someone went to the trouble of actually measuring battery noise. This has been a dirty little secrect for too long. Batteries are not perfect voltage sources.
They are chemical reactions. I like to think of boiling water as an analogy to the molecular conversions taking place. It's no panacea. On the other hand, it can easily solve ac related hum issues in some equipment.
jh
Hi Jim, your post amply demonstrates you are not a chemist. Boiling water is a physical process; a battery giving off current is a chemical process (electro-chemical). The latter is not constant but fluctuating like the flames in your cosy fireplace to give a better analogy.
Re: Re: Battery powered clock circuit.
Dear Mr. Tent,
thank you very much indeed for your extremely kind and valuable advice.
Exceptionally interesting tests indeed.
And also a revenge of instrumental assessments on listening tests.
I mean, in the end an oscilloscope is always the most reliable and sensitive tool, much more than a human ear I am afraid.
Thank you very much indeed.
Kind regards,
beppe
Guido Tent said:this will scare you off even more
http://www.tnt-audio.com/clinica/regulators_noise4_e.html
read parts 1 to 4, good info and suggestions on low noise
Dear Mr. Tent,
thank you very much indeed for your extremely kind and valuable advice.
Exceptionally interesting tests indeed.
And also a revenge of instrumental assessments on listening tests.
I mean, in the end an oscilloscope is always the most reliable and sensitive tool, much more than a human ear I am afraid.
Thank you very much indeed.
Kind regards,
beppe
Battery Powered Clock
I have had fantastic results powering an Audiocom SC3 in my Sony SCD-1 with batteries, as well as all other circuits in the CDP. A well-designed battery implementation beat the best I could design with AC/DC discrete regulation stages by a significant margin. The keys are low impedance batteries (e.g. 2 milliohm Optima Yellow Top spiral cell or Enersys Odyssey PC2150 thin-plate), decoupling the battery from the application with a parallel array of fast filtering caps located inside the CDP(e.g. Rubycon ZA), DC trunks of quality wire, short length, and adequate gauge (3' or so max length and 20-25 strands of 24 AWG poly-coated magnet wire to minimize skin effect), and where possible, running the application unregulated directly off the battery. The results are astonishing.
I have had fantastic results powering an Audiocom SC3 in my Sony SCD-1 with batteries, as well as all other circuits in the CDP. A well-designed battery implementation beat the best I could design with AC/DC discrete regulation stages by a significant margin. The keys are low impedance batteries (e.g. 2 milliohm Optima Yellow Top spiral cell or Enersys Odyssey PC2150 thin-plate), decoupling the battery from the application with a parallel array of fast filtering caps located inside the CDP(e.g. Rubycon ZA), DC trunks of quality wire, short length, and adequate gauge (3' or so max length and 20-25 strands of 24 AWG poly-coated magnet wire to minimize skin effect), and where possible, running the application unregulated directly off the battery. The results are astonishing.
More engineering humour?
Hi David,
Shall I ask the moderators to move your post to "More engineering humour"?
😀
Hi David,
Shall I ask the moderators to move your post to "More engineering humour"?
😀
Why not try a 100AH battery in the vibrator and let me know whether you prefer AC/DC regulation?
Don't have

Sorry man, I don't have a vibrator...... Where is it for? [joke]David Garretson said:Why not try a 100AH battery in the vibrator and let me know whether you prefer AC/DC regulation?

Battery Powered Clock
Seriously, it works great as described. I tried a variety of batteries Lithium, NiMH, and SLA big & small before concluding that size matters. Large, low impedance SLAs are the way to go.
Dave
Seriously, it works great as described. I tried a variety of batteries Lithium, NiMH, and SLA big & small before concluding that size matters. Large, low impedance SLAs are the way to go.
Dave
Battery Powered Clock
The attached URL shows a picture of the battery-powered Sony. The battery switch logic and cap arrays are inside the expanded left cover. As great as this unit sounds, maybe the vibrator got stuck in the on position for a little too long....
http://cgim.audiogon.com/cgi-bin/vs.pl?vaslt&1140494870&viewitem&o2
The attached URL shows a picture of the battery-powered Sony. The battery switch logic and cap arrays are inside the expanded left cover. As great as this unit sounds, maybe the vibrator got stuck in the on position for a little too long....
http://cgim.audiogon.com/cgi-bin/vs.pl?vaslt&1140494870&viewitem&o2
Re: Battery Powered Clock
Skin effect at DC?
David Garretson said:DC trunks of quality wire, short length, and adequate gauge (3' or so max length and 20-25 strands of 24 AWG poly-coated magnet wire to minimize skin effect)
Skin effect at DC?
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