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Tube power supply for Aikido Preamp
Tube power supply for Aikido Preamp
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Old 14th July 2018, 12:14 PM   #1
Tix88 is offline Tix88  Italy
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Cool Tube power supply for Aikido Preamp

Hello to all
I bought two mono PCBs for the Aikido preamplifier, since I wanted to do a tube pre-amp I decided to use a tube-driven power supply, I found this scheme from a user who uses it with AIKIDO, it could be a valid scheme ? Does it make sense to supply a tube or is it a solid-state power supply?.

Thanks Tiziano:freddo:
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Old 15th July 2018, 04:04 AM   #2
sony6060 is offline sony6060  United States
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I like using a rectifier tube. If you go with solid-state use low noise UF4007 rectifier diodes.
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Old 15th July 2018, 05:14 AM   #3
AllenB is offline AllenB  Australia
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The aikido is designed to try to correct errors in the supply. It is therefore likely yo be less sensitive to the supply. Still, it is always good to get the supply working well.
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Originally Posted by Tix88 View Post
Does it make sense to supply a tube or is it a solid-state power supply?
I think it is best to make a supply to suit your needs, it doesn't matter whether you match the same type of devices.
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Old 15th July 2018, 07:09 AM   #4
Tix88 is offline Tix88  Italy
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Thanks for the answers. What are the pros and cons of both types of power supply?
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Old 15th July 2018, 09:32 AM   #5
AllenB is offline AllenB  Australia
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Vacuum diodes have resistance that can damp transformer oscillations and produce good results. With this knowledge you can add resistance to solid state rectification and achieve the same good results with less effort.

Also, vacuum rectifiers delay the Voltage to the amp. This is not normally a problem, maybe you could read the thread on cathode stripping for other opinions.

I use solid state rectification.

Vacuum regulators can sometimes be a little noisy.
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Old 15th July 2018, 07:52 PM   #6
Tix88 is offline Tix88  Italy
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Which solid-state power supply you would recommend to me?
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Old 16th July 2018, 10:27 AM   #7
AllenB is offline AllenB  Australia
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Maybe John Broskie has a simple supply to use with his Aikido?

Designing a supply is a long process that depends on the individual transformer, the amplifier's current draw, it's supply rejection ratio and other things.

Personally, I like a choke input type supply to go with the type of amps that I build.
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Old 17th July 2018, 12:35 AM   #8
PRR is offline PRR  United States
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Quote:
Originally Posted by Tix88 View Post
...Does it make sense ....... .....
It is a little like the attached images. Much bigger and more powerful than it needs to be. (Yes, the last one is a V8 lawnmower.)

I'm not saying it is wrong. You can find all sorts of over-powered machinery that "somebody" thought was worth building.
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Old 17th July 2018, 09:39 PM   #9
kodabmx is offline kodabmx  Canada
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I use these to power my circuits... Run the whole thing from a 12V 5A brick.
DC-AC Converter 12V to 110V 200V 220V 280V 150W Inverter Boost Board Transformer | eBay
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Old 26th July 2018, 06:06 PM   #10
Tix88 is offline Tix88  Italy
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I decided to use the Salas Shunt, but I'm undecided whether to use a tube or solid state rectifier.
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