Suggestions for BJT Tremolo Oscillator

[makinrose]

Hello Mr Makinrose

Vox has a single mosfet oscillator for the tremolo in their newer amps. They use it a lot so it must work okay?

Cheerio

Thanks!  However I'm wanting to do a signal modulating circuit.  While the Vox work well but they are modulating the power tubes via the 220K grid-leaks.  I'm wanting to use these in the signal path to avoid stressing the power tubes and power supply plus it's for fixed bias amp.