A HiFi Class A Valve/Tube Alplifier KIt - with Bass and Trebel or equaliser.

Thread Starter


Joined Aug 27, 2016
I am looking for a good HiFi Class A Valve/Tube Amplifier Kit - with Bass and Trebel or, better, an extra equaliser.

Thread Starter


Joined Aug 27, 2016
I would like suggestions for a good Class A HiFi Valve/Tube Amplifier Kit.

Many thanks in advance.


Audioguru again

Joined Oct 21, 2019
61 years ago I heated my home with a Hi-Fi Valve/Tube amplifier kit but it was class-AB, not class-A.
To keep the distortion low the output tubes needed replacements every 3 months.

I soon replaced it with a solid state Hi-Fi FM receiver (not available as a kit) that still works 58 years later.


Joined Nov 6, 2012
"Hi-Fi" and Tubes do not go together ........
Are You looking for the particular type of Distortion that Tubes normally create ?

You can duplicate this "Tube-Distortion" in a reasonably close manner using Solid-State Components,
if you're interested in some Circuit ideas just ask .......

If you're looking for the highest Fidelity that You can get,
high-end-Op-Amps can't be beat,
and they're readily available, and super-easy to work with.

If you're looking for the "Cool-Factor" of Tubes ...........
mount the Tube(s) of your choice on your Chassis and Power-up the Filament(s),
get the Chassis Chrome-Plated, and polished to a mirror-like finish,
then build an Op-Amp Amplifier, inside the Box, that actually processes the Signal(s).
Then watch your friends get "blown-away" by all that "pristine" Tube-goodness !!!