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Look on the DIY guitar amp building sites.I know how to wind voltage and current transformers but how many turns does a audio transformer need to be 4000 ohms for a tube B+ and 8 ohms to the speaker?
Does anyone still sell these?
Those are like 60 bucks at Mouser, there are some cheaper ones from different manufacturers.Hammond 125xSE series. E
If he is after "tube quality sound", then I cannot imagine that price is a concern.Those are like 60 bucks at Mouser, there are some cheaper ones from different manufacturers.
I belong to the local antique radio club, lots of old transformers to be had. There must be one (a club) in San Diego you can join!
I'm not looking for a transformer, Gary is...I belong to the local antique radio club, lots of old transformers to be had. There must be one (a club) in San Diego you can join!
If it is the circuit mentioned in post 7, be careful! That thing has no AC line isolation! E
Turn down the treble tone control on a modern amplifier and it will sound as warm as an old vacuum tubes AM radio.
Transistor and IC amps when designed properly sound like the original recording or live show. Absolutely flat and accurate frequency response and distortion much below what can be heard.
Tube amps are highly sauté after, the Dynaco amps sell up to $1000 each on ebay.
Does that mean that people jump for joy when they find one?Tube amps are highly sauté after
Gary, sorry for my earlier comments, but the fact is that the amplifier that you discussed in your other thread is just one gawdawful circuit and will not sound good. I don't mean to put down tube amplifiers in general. I've built a few myself, and some of them sound pretty good. (In fact, as I type this, I'm listening to some internet radio played through a tube amp to my desktop speakers.) I'm just saying that there are a lot better simple tube amps than that one that you are interested in.
If you really want to build this amplifier, then take Canadaelk's advice and pick up a used transformer. There are lots of them around for little cost.
A transformer suitable for your circuit is readily available in almost every old 5 tube AC/DC radio that you'll find in a garage sale, dirt cheap.
Build the circuit, see what you think. But don't spend a lot of money on it.
And by the way, I don't know where you got the 10 watt spec from, but you don't need a 10 watt transformer for that tube.
they are highly sauté after.