Vacuum Tubes We've worked with virtually every tube currently available, including current production and New Old Stock (NOS) tubes to determine the sonic characteristics and overall durability of each. And although the tubes featured here are not made exclusively for Alessandro, these are our recomendations for the best choices in tubes currently available. We think you'll agree with our selections.

Preamp Tubes

Model	Comments	Make	Price*
12AX7WA	Low microphonics, good sound, and high reliability	Sovtek	$7.00
12AT7JAN	Traditional US-made tube	NOS	$9.00
12AY7/6072A JAN	US Military version	NOS	$16.00
12AU7/EI ECC82	Good clean sound	NOS	$9.00
6SN7	Various models available	NOS	$20.00
6SL7	Low microphonics and good tone	NOS	$20.00

Power Tubes

Model	Comments	Make	Price*
EL84/6BQ5	Good sounding, reliable tube	Sovtek	$7.50
6V6 JAN	Good sounding, reliable, US-made tube	NOS	$25.00
6L6GC JAN	Good sounding, reliable, US made tube	NOS	$20.00
EL34EH	We have some, and I like 'em!	Sovtek	$15.00
6550C	As good as they get. Can be substituted for an EL34 for that early Mullard sound.	Svetlana	$25.00
KT88/EI KT90	I like the performance and sound of this tube and would use it in place of the KT88.	NOS	$35.00

NOTE: The cost of power tubes listed above includes matching for pairs and quartets.

Rectifier Tubes

Model	Comments	Make	Price*
GZ34/5AR4	The only alternative to a real Mullard GZ34	Sovtek	$20.00
5Y3WGTA JAN	Good sounding, reliable, US-made tube	NOS	$9.00
5U4	Hate them, don't even stock them.	N/A	$ N/A

Vintage Tubes

We maintain a large stock of hard-to-find vintage preamp and power tubes; contact us for more info...

* Prices and specifications subject to change without notice.
** Vacuum tubes not subject to online discounts.