Tube Stuff

Just a running list of reputable places to get tubes

• BRENT JESSEE RECORDING & SUPPLY, INC. (www.audiotubes.com)

• The Tube Store

• Tube Depot

• Vacuum Tubes .Net

• Tube World

• Upscale Audio

• Leeds Radio - also on Etsy

• FindTube

• McShane Design

300b headphone amps. I think the 2a3 tube is close to a 300b, so I'm listing those too.

• Woo WA5-LE: $3699 

• Woo WA5: $5899 (plus $365-$1900 for option tube upgrades)

• Cayin HA-300: $3,999 

• ModWrite HA-300: ~$8000

• ampsandsound Agatha: $3600-$4250

• GemTune GP-01: $859 - ChiFi crap, but has VU meters!

• Eddie Current Balancing Act: n/a new, ~$3500-$4000 used

• Manley NEO-CLASSIC 300B RC: $6100

• DNA Stratus: $3000

• Triode TRV-A300XR: $4100

A couple of DIY options;

• • ELEKit TU-8600 with all upgrades and good, tubes: $2467 (DIY) from VKMusic

    • can be considerably less with no upgrades and less cost tubes

    • $1300 from The Tube Store - with no tubes

    • recommended tube sets range from $290 to $1030

  • There are some older ELEKit amps too

  • Transcendent Sound "The Masterpiece": $699 + tubes

    • optional $30 pot upgrade

    • OTL, but Output Impedance: 15 ohms (headphone output)

    • Tubes: 2-12AU7 and 2-300B

      • example pricing for 12AU7 from TheTubeStore: $11-$99, TubeDepot: $8-$500

      • example pricing for 300b from TheTubeStore: $119-$369, TubeDepot: $40-$250

      • 2 Genalex Gold Lion 12AU7: $44/ea = $88

      • 2 Genalex Gold Lion 300B: $160/ea = $320

      • Total amp price: $699 + $30 + $88 + $320 = $1137 (plus some shipping)

Good tube info

• The Tube Store Basics

• The Tube Audio Store matching page

  • Good explanation of Mu, GM, and Rp