Audiophiles searching for handcrafted tube amplifiers may be interested in a new product from Bellgrove Fine Audio based in Pasadena, California. The “Extraordinary Tube Amplifiers” have this week…

The rectifier tube for smaller vintage amps like the 5F1 Fender Tweed Champ or the Tweed Deluxe 5E3. This small bottle version is the closest in performance and…

I built this “tubes only” amplifier from scratch. It’s a quite long project of mine and it required a lot of time and patience to make and in…

Very low noise but slightly less gain than a regular 12AX7. Soft highs and edgy, dominant mids. Our recommendation when your amp has microphonic issues. This tube is…

Warm, clean tone with creamy overdrive! PREMIUM selected quality for the most demanding amp stages. This tube works greatly for warm clean tones and creamy overdrive. We recommend…

This APPJ Gemtune PA1501A is the successor and upgrade of the well reviewed Miniwatt N3, which is also known as the PA0901A. It is in excellent condition and…

But one thing most guitarists can agree on is that much of the glory of a great tube amp comes from the little glowing glass bottles that supply…

High-power amplifiers (HPAs) for RF/microwave applications were once automatically associated with electron-tube devices such as klystrons or traveling-wave tubes (TWTs). While those devices still pro… ( read original…

Thanks to digital modeling, we can conjure up any and every flavor of guitar tone. But for true tone aficionados, it always comes back to tubes. Why is…