KCA NOS Tubes

KCA NOS Tubes NOS and New Production Vacuum Tubes for Guitar and Audio Amplifiers

Here's a cool item I dug up in the archives while "organizing" the inventory. Very rare and toneful! Great in any 6V6 am...
02/03/2026

Here's a cool item I dug up in the archives while "organizing" the inventory. Very rare and toneful! Great in any 6V6 amp.

NOS in original boxes. Super toneful and very difficult to source, especially in matched pairs. Only a few available.

Down to the last 2 of these very cool EF86s. Dr Z and Matchless peeps take note!
11/19/2025

Down to the last 2 of these very cool EF86s. Dr Z and Matchless peeps take note!

Found a few in the archives. These won't last! A great alternative is the NOS Tesla EF806s (high grade EF86) https://www.kcanostubes.com/content/nos-tesla-ef806s-not-jj-high-grade-ef86 Another great one is the Amperex, Holland, EF86. Darios were made in Holland and appear to be identical to thise tu...

More New Arrivals!
05/26/2024

More New Arrivals!

Rare find. NOS in original boxes. Small stash in stock.

More New Arrivals!
05/26/2024

More New Arrivals!

Mesa Boogie STR-450

Great 12AX7 substitute! On Sale!
03/10/2024

Great 12AX7 substitute! On Sale!

Number one choice for guitar amps where lower gain and smoother tone is required. These remove harshness in some guitar amps.ﾠﾠ

https://www.kcanostubes.com/content/nos-mazda-6v6g-matched-pair
03/03/2024

https://www.kcanostubes.com/content/nos-mazda-6v6g-matched-pair

If you liked Mazda 6V6GTs you'll love these. Limited supply on hand. Labeled and boxed as "Haltron, England". Haltron was a British tube distibutor that sold many high quality brands of tubes. Also labeled Mazda, GEC, and Brimar and sold in white boxes.

SALE!
02/27/2024

SALE!

Manufactured in Mullard's Mitchum factory in the early 1980's. Nice military stock. Original white military boxes. Try one of these in your phase inverter or reverb driver socket (only if your amp calls for 12AT7s in these positions) in your Fender amp for a real upgrade in tone! Also superb in audi...

SALE!!!
02/26/2024

SALE!!!

jan philips 6v6gt deluxe reverb princeton fender princeton reverb fender champ

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