Audio Asylum -THE place for audio discussion of all kinds

Electronic Tonalities -Affordable, great sounding tube audio kits and more

Angela Instruments -Parts and projects for the tube hobbyist. Good selection!

Triode Electronics Inc. -Great prices on tubes & parts. Plus, Ned is very helpful and shipping is lightning fast!

Antique Electronic Supply -Tubes, tubes, and more tubes, plus general tube related parts

Parts Express -Electronic parts, raw speakers, and test equipment