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March 18th 04, 10:42 AM

On 17 Mar 2004 22:19:39 -0800, (Tom Bruhns) wrote:

Paul Burridge wrote in message . ..

Yes, but I'd hoped to avoid any intermediate amplification stages.
Looks like I'll have to swallow it.

Exactly how much power do you need?

Only enough to feed another inverter gate.

Exactly how "clean" (free from
other harmonics) must it be?

Preferably filthy. It's another multiplier (this time only 3X, thank
God!)

Don't you have an amplifier in the
circuit you're playing with anyway?

Yeah, but who needs insertion loss on top of the 8dB the filter's down
even at centre pass frequency.

100mW should be easy with a
single stage following the digital square wave, and a full watt is
certainly feasible with the right design. If you were hoping for
100mW of fifth harmonic from a single HC output, you were probably
dreaming.

As opposed to the *nightmare* of the reality. :-)

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