I ask for advice-you need a very good power supply circuit for a phono tube
preamp
2-tube ecc83 +2 tube ecc88. (attach)
advise the scheme. or a ready fee
250-- v. anode feed
6.3 -v heat
12 - v
I will buy a transformer for the needs of
I do not want to have an AC background
preamp
2-tube ecc83 +2 tube ecc88. (attach)
advise the scheme. or a ready fee
250-- v. anode feed
6.3 -v heat
12 - v
I will buy a transformer for the needs of
I do not want to have an AC background
Attachments
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I use a 12V SMPS. I run heaters in series for 12V, and run a boost converter to get 280V. It's silent, and you can run it from a battery if you like. It's also smaller, more efficient, and cheaper.
DC-AC Converter 12V to 110V 200V 220V 280V 150W Inverter Boost Board Transformer | eBay
DC-AC Converter 12V to 110V 200V 220V 280V 150W Inverter Boost Board Transformer | eBay
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For a phono preamp, I use a 12V 10A brick.
AC 100-240V To DC 12V 2/3/4/5/6/8/10A Power Supply Adapter Transformer LED Strip | eBay
Connect the 12V tubes in parallel, and the 6V tubes in series.
All four tubes and the boost converter run from the single 12V supply.
AC 100-240V To DC 12V 2/3/4/5/6/8/10A Power Supply Adapter Transformer LED Strip | eBay
Connect the 12V tubes in parallel, and the 6V tubes in series.
All four tubes and the boost converter run from the single 12V supply.
ok!!!!
who then applied this to the phono stage? really have reviews or read the article-there are comments of the person who applied it? in the phono stage?
I want to read the article - or see the photo!
Thank you so much!!! -It is very interesting !
can? to put a resistor to get 250 volts?
6) Current with 12V interface (No-load): 250mA
who then applied this to the phono stage? really have reviews or read the article-there are comments of the person who applied it? in the phono stage?
I want to read the article - or see the photo!
Thank you so much!!! -It is very interesting !
can? to put a resistor to get 250 volts?
6) Current with 12V interface (No-load): 250mA
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I did. Here's a much better circuit for phono I built. Yes, you can use an RC filter to get 250V.
EDIT: the one resistor that got too hot was due to a short. It still works fine, so I left it instead of changing it.
EDIT: the one resistor that got too hot was due to a short. It still works fine, so I left it instead of changing it.
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It's completely silent. If there was any noise (there isn't, I scoped it) it would be around 35kHz. The entire thing will run off of a battery if you want it to, too!
I use SMPS and boost on most of my builds. Yesterday I built a 6P45S triode connected amp (80W) powered from an ATX supply and a 500W boost converter Even the module I listed above set to 110V for negative bias. (it's isolated)
I also built a GU-29 amp using these. They work better than linear and cost less to use. Win/win if you ask me
I use SMPS and boost on most of my builds. Yesterday I built a 6P45S triode connected amp (80W) powered from an ATX supply and a 500W boost converter Even the module I listed above set to 110V for negative bias. (it's isolated)
I also built a GU-29 amp using these. They work better than linear and cost less to use. Win/win if you ask me
Persuaded))). I also buy - I'll listen
if there is noise - I will assemble another block ------ THANKS !!!!
I wanted to assemble the power unit I need 150-200 dollars roughly-kenotron-capacitors-resistors --- expensive
If it plays as it should - it's a huge savings
THANKS !!!!THANKS !!!!THANKS !!!!
if there is noise - I will assemble another block ------ THANKS !!!!
I wanted to assemble the power unit I need 150-200 dollars roughly-kenotron-capacitors-resistors --- expensive
If it plays as it should - it's a huge savings
THANKS !!!!THANKS !!!!THANKS !!!!
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