SET Asylum

Single Ended Triodes (SETs), the ultimate tube lovers dream.

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RE: 300b set versus 300b parallel set

Posted by Chip647 on May 20, 2017 at 08:26:55:
Yes, but.

Remember that doubling the output power from 7 to 14 watts results in a fairly small increase in apparent loudness from the speaker. You will be spending a lot of $$$ for little output benefit.

With parallel 300b amps, the Single Ended Output Transformer has to be wound to allow for double the current which greatly increases the cost and usually lowers the bandwidth performance.

If you want more power and DHT sound, Push Pull 300b (or 2A3) is how I roll. I have built a 2A3 PP amp that I often prefer to 300b SET.

Big power from SET is more fun with big transmitter tubes. You are not expecting them to sound like 45/2A3/300b types.