Tube Amp Archive

I’m guessing that since the Beekeeper is a separate unit, it doesn’t allow me that whole negative feedback NFB function but I don’t really know how that works anyway… The Beekeeper is the D preamp, and that section is outside of the global feedback loop in the D topology. Same as it is in your setu...

That's correct - here is a pic of the BeeKeeper

I have had a few nice amplifiers, including a Ceriatone OTS50 / OTS20 and a RedPlate Blackverb (the last was the nicest amplifier I ever had) but all of them were too loud in my little spare bedroom - even the 20 W job. And that’s despite the fact that (from my understanding) the power sections of t...

Thank you, friends for your very kind and helpful replies. I’m based in the UK, and so getting a kit from Mojotone would be prohibitively expensive. But I was thinking of putting it in a much smaller chassis with the following layout. IMG_6761.jpeg Tell me please, would you guys sacrifice a non-buff...

I thought I'd build an amp with: Power Amp Section from Rob Robinette's Blackvibe MICRO 12AU7 - 1 watt - Cathode biased - 12AU7 power tube (in push-pull) - 12AT7 phase inverter - Presence control - Master volume (after phase inverter?) and marry that with a Dumble 124 preamp section. The front panel...

I was wondering about grafting a Dumble preamp with a Rob Robinette Blackvibe Micro which to my understanding, involves one 12AU7 output Tube in push-pull for 1W. The only problem is to fit 8 potentiometers, 3 toggle switches and input socket on the front panel, the amplifier will need to be full si...