Hi,
I would like to build a simple and cheap tube amp with the schematic below.
There will be one pcb to manage the feedback, but that will come later.
I would like to keep this part of the circuit as simple as possible, on turret or even point-to-point.
Power supply will be one single secondary going to a first 220u 550V common capacitor, then 22 Ohm to 220 Ohm for each channel.
Output transformer screens are supplier through UL connections, LTPI anodes are supplied through KT88 plates using a positive feedback connection to have better sensitivity.
A specific negative feedback circuit will manage distortion and Zout of the amp.
Negative rail will be for bias and for LTPI cathode's CCS.
Transformers are toroidal, and I want to keep them "under the bonnet", with a flat surface on top.
There will be two channels on one single stereo amp.
Thank you for the suggestion.
I would like to build a simple and cheap tube amp with the schematic below.
There will be one pcb to manage the feedback, but that will come later.
I would like to keep this part of the circuit as simple as possible, on turret or even point-to-point.
Power supply will be one single secondary going to a first 220u 550V common capacitor, then 22 Ohm to 220 Ohm for each channel.
Output transformer screens are supplier through UL connections, LTPI anodes are supplied through KT88 plates using a positive feedback connection to have better sensitivity.
A specific negative feedback circuit will manage distortion and Zout of the amp.
Negative rail will be for bias and for LTPI cathode's CCS.
Transformers are toroidal, and I want to keep them "under the bonnet", with a flat surface on top.
There will be two channels on one single stereo amp.
Thank you for the suggestion.