info on car tube amps???

[rustycar 10+ year member]

can anyone help me find info on building car tube amplifiers? i know the basics of tube amps and any scematics links or ideas will help. i want to build a small amp just basicaly for looks, before i invest money to make a good one.i have a a lot of tubes and componets to work with.

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[rustycar 10+ year member]

just an idea.... i once took a tube radio and removed the amp from the radio and just used the amp, i used the phono input. if i were to find an old car tube radio i probally could do the same, but how could i input sound?

 

[JimJ 5,000+ posts]

You have a lot of tubes? Any you want to sell? //content.invisioncic.com/y282845/emoticons/up2something.gif.dd110ecf3ae4b76050d87598f2f8de7c.gif If you've got some EL84's, 6DJ8's, 5U4G rectifiers or 6DJ8 triodes, I'd be very interested //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Anyway...back to your original question. Most car tube drivers (like Butler or USAmps) use tubes in their preamp stages, but the power amplifier is still solid state. True Class A tube amps are very rare in-vehicle, simply because of the impedance issues and power requirements.

 

[rustycar 10+ year member]

ok yeah iwas going the amp as a pre-amp. i have EL84's and 5U4G rectifiers but used and not matched pairs. most of the tubes i have came out of old 5 tube amps, just sold my heathkit w6m, kind of wish i didnt it was the coolest damm tube amp ive ever seen, needed to pay the bills tho. back to the question well am i better off using a power inverter on a tube amp or building one with a 12v power supply. i want to build one simple and ellegant basically just for the look, tube mounted in the dash look sweet.

 

[JimJ 5,000+ posts]

Power inverters will introduce noise into your signal, as most of them are squarewave generators instead of a pure sinewave...if you're serious about this project, I would take a close look at Butler Audio tube drivers or US Amps and see how they do it.

 

[rustycar 10+ year member]

thanks, started research on Butler Audio and us amps, any secematics or links?