300b

  1. Vinylistas

    SOLD Border Patrol SE300 Single Ended 300b Valve Amplifier

    My Border Patrol SE300 power amp with external power supply for sale. Low gain version. Sounds better than my previously owned BP S10 amp tbh. Very good condition. Serviced recently. Selling as have too many amps. Collection from SE London. Price is £SOLD.
  2. Vinylistas

    SOLD Border Patrol S10 EXD 300b Single Ended Dual Mono Amplifier REDUCED!

    Reducing count of hifi gear at home. Flagship Border Patrol S10 EXD 300b single ended power amplifier for sale. Has EXD mods: copper chassis, deep cryo output and interstage trasformers, other internal parts upgrades. Two external power supplies with NOS Mullard valves. Optional Dact stepped...
  3. Vinylistas

    WTD: Premium 300b Valves

    Would like to buy a pair of premium matched 300b valves. New or used. Western Electric, KR, EML or similar.
  4. pmcuk

    Building a 300b SE amp.

    I thought I'd start a thread for sharing information about 300b builds. I'm in the middle of building 5 amplifiers with different OPTS. These are O-Netics Commercial 3.3K (Used in Wright Sound 2a3), O-Netics Level 1 3.5K, NP Acoustics amorphous core 3.5K, Lundahl LL1664/70 3K and Lundahl LL1682...
  5. pmcuk

    Best buys for current 300b tubes?

    Recommendations please for the bottom end of the 300b models - say under $200 for a pair, maybe under $250 if it makes a big difference. Contenders I'm aware of include: Shuguang 300b-98 Shuguang 300BA or 300BC Psvane basic 300b Psvane HiFi 300b JJ 300b EH 300b EH Gold 300b TJ Full Music...
  6. TheFlash

    SOLD Brand New Genalex Gold Lion PX300B (72mA/5.7maV) £80

    Should I be on trend and call this NNS (New New Stock)? Bought from Hotrox UK on 20th May, never used. My MH-300B amp arrived with 4 of these, pretty well-matched but not spot on. In my naive excitement I bought another to see if I could get closer. Snigger now, oh experts. The older ones are...
  7. Thetiminator

    Transcendent Audio The Pinnacle 300B OTL monoblocks

    For sale (due to silly money 211 amp on the way) - Transcendent Sound The Pinnacle 300B Output Transformer Less 300B monoblocks.  Professionally built in December by David Coe, the only parts he thought worth upgrading was the caps, which was done at the time of building.  When looking for a...
  8. Open door

    300B Trafomatic Experience Mk2 Integrated valve amp

    300B Trafomatic Experience Mk2 Integrated valve amp Bought this ex-demo. Very good condition but there are some very minor marks. Volume remote control. These now retail over £4K. I have the original box (very very heavy), so collection please in Gloucester. Or we can meet up. Happy to...
  9. westlower44

    WAD 300b Custom Power Amp, David Coe built

    WAD 300b Custom Clone Power Amp, David Coe built at AD Audio  £2,000   NOW £1800 Well this is a very, very reluctant sale indeed. I bought this beautiful amp from the builder, renowned Valve amp engineer, David Coe (Juancho) at AD Audio. He built the 300b for himself as the bench mark...
  10. hairyderriere

    ELROG taken over by Thomas Mayer.

    Potentially great news for the company, and for the hobby. The emphasis on sorting out reliability means it may get onto my radar again and influence future amp choices. http://vinylsavor.blogspot.co.uk/2016/08/the-future-of-elrog-tubes.html