These are our standard replacement for any 7591 application. Current production, built tough, reliable with great sound and performance.
SOVTEK 5U4G Big bottle rectifier - G envelope Made in Russia, Saratov Check out the attention to detail on the heater courses. These are the go to HiFi bottle. Compatible with 5Z3P
EHX 6SN7 MATCHED QUAD. As is the norm for Electro Harmonix Valves, these 6SN7's are well built, stable, reliable and sound good. Schiit upgrade.
NEW OLD STOCK PHILIPS. JAN 6080WC MILITARY SPEC TWIN TRIODE. MADE IN USA. SIMILAR TYPES: 6AS7 = CV2984 = E6080 = ECC230 = 6Н13С = 6Н5С = A1834 = A4475 = CV2523 = 6AS7G.
NEUTRIK NL4FX 4 pole cable connector, chuck type strain relief, dark grey bushing The industry-standard for loudspeaker connections offer extremely reliable and robust cable connectors with a reliable locking system. They feature solid contacts with screw-type terminals including a stranded wire protection which offer also solder termination.
SVETLANA S.E.D 6550C power tetrode. FACTORY MATCHED QUAD. Made in Russia - Saratov. Very popular as a G2 regulator in Audio Research Amplifiers.
NOS CV4009 6BA6 5749 EF93 Various types in stock. Similar to: 2J6BA6 5749 5749W 6660 CK5749 GL5749 CV454 6660 W727B7G Pentode
ELECTRO HARMONIX 6973 New production, made in Russia. 6973_Specs