Sold Only in Quads, (4) Tubes - 

Plate Current Matched set.

vintage-styled bottle, black plates modeling the classic British tones of the original

Having respected and followed the structural designs and use of material of the classical tubes, the original and musical sound performance is maintained.

Sold Only in Quads, (4) Tubes - 

Apex matched set.

Triple getters for a superior vacuum, gold plated grid wire and eye-catching gold artwork on the bulb.

These KT88 have a lot of punch with great detail.

Sold Only in Quads, (4) Tubes - 

TAD Factory  matched set.

Gold control grid for outstanding performance and reliable stability. Built in a heavy glass envelope with a beautifully polished metal base.

A very natural and three dimensional presentation with pleasing warmth and subtle highs. A very musically detailed response, with powerful sound and excellent sounding mids and top-end. 

Octal beam Tetrode, an exact copy of the KT88 valve manufactured by Marconi-Osram in the late 1960s and 70s. 

Powerful, balanced and detailed soundstage with full bass.

The JJ Electronic KT88 is a sonically faithful reproduction tube with a robust construction encased in a thick glass envelope. 

This tube has a tone that is warm and lively with a detailed and balanced response.

Reproduction of the original type 3 Tung-Sol 6550. Triple getters, carbonized screen, and gold plated grid. 

Excellent dynamics with full and rich body, an excellent choice.

Sold only in pairs, (2) tubes - 

Various quality brands like RCA, GE, Sylvania (brand selection subject to availability)

New-Old-Stock (NOS) tubes. The 6AN8A is a medium mu triode and a sharp cutoff pentode in the 9 pin miniature construction. 

Our amplifiers use the original Dynaco circuits, so these are the tubes you'll need for our MKIII.

Sold as each. Price is for a single tube.

Works in the Dynakit / Dynaco ST-70, MK III and MK IV Tube Amplifiers. 

Genalex Gold Lion U77 / GZ34 full-wave rectifier tube. A highly rated indirectly heated dual diode, full-wave vacuum rectifier. This tube has a strong, dynamic response. 

Excellent sound and a reliable choice, the Genalex U77/GZ34 comes with a dark blue base. 

It has a stable tandem supported getter cup, industrial thickness dual mica spacers and full 30mm length internal plate structures.  

Sold as each. Price is for a single tube.

Pre-tested and burned in for quality assurance. For use in the Dynakit / Dynaco ST-70 and MKIII or MKIV Tube Amplifiers. 

Tung Sol 5AR4 rectifier tube is a premium grade directly heated heavy duty rectifier Diode. Helps extend the life of the other valves in the amplifier by allowing them to heat up before plate voltage is applied.