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However, with these tubes going as high as $6,000 a pair for an amazing set. The vintage WE’s are so smooth, extended, and dynamic, you’ll swear you’re listening to an entirely different amplifier. If you have the chance to experience the vintage 300Bs, you’ll freak out. Most manufacturers have voiced around the current tubes, but that only goes so far. Nope, these are 5,000 hour tubes on a good day. But don’t expect the 50,000-hour tube life of the NOS WE’s. Having listened to more than my share of the current 300Bs, most manufacturers have settled on Electro Harmonix or JJ, because they are available. Today, the 300B amps have had a bit of a resurgence (and to some, they never went away – just like vinyl) but there are no incredible tubes to power them with. I had a pair of those and they were pretty incredible, and I did spend some time with the NOS models when I had my WAVAC monoblocks. Only a few pairs of these were made and then the “new Western Electric” fell back into obscurity. The mightiest of them all are the vintage Western Electric 300Bs, and then if you can find them, the reissued WE 300Bs that came out around 2005 or so. If you are a lover of single ended triode amplifiers, no doubt you are familiar with the mighty 300B. In such case - the cheap smallĬhinese output transformer will be the most serious bottleneck of thisīut wait a minute - these transformers can be raplaced too. Hesitate before spending $$$ for the NOS 300B or JJ or any otherĮxotica. Investing 100-200 USD in these three tubes, while I would seriously Valid as below) - the best there are - "black glass" JAN NOS, maybe
#Buy audionote 300b tubes install#
If I was doing it again, I would install in the center the octal baseĪnd all 3 tubes would be 6SN7GT from NOS variety (same schematics is The bass - not too muscular, but rich in colors and vibrations. Slightly more charming than 845, very very clean and spacy trebles, and
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IN THE END - the amp starts resembling areal 300B. Of course - it goes without saying - that the coupling caps (2 perĬhannel) must be replaced too, with a 1uF PIO or something like that. The caps in this amp are VERY VERY SMALL. Minimum voltage ratings to be 600 V DC for all applications except 1000 Last thing to do would be to at LEAST double all electrolytes in sizeĪnd bypass them with a small MKP or better small PIO cap (observing But my sample had only the input tube with DC heaters. Also the schematics which is available on the net - ther heaters are DC. On my photos above - from e-shop internet). Some other variants of this amp have DC heaters (like Lastly, I had to rectify the heater circuits. Then I adjust the anode current to be not too big, a conservative 2 mA.
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It took me 3 full evenings to find optimal operating points - mostly by trial and error.įirst - I drop the power supply voltage from 420 V DC to a more suitable 250 V. The world) and also with my little baby - 6H1P (except it is noval notĪfter applying the SRPP circuit (lampizator) to the tube - I got just what I needed. This tube is exatc equivalent - 1:1 with 6SN7GT (most popular tube in So I exchanged the 6H9P with 6H8C (In "Chinese language" this is 6N8 replacing 6N9)
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I needed more amplification, so iĭecided for 6H1P in triode mode - one half is an input stage for everyīut the driver tube is wrongly chosen too - the very high amplificationįactor plus small current are not optimal here. I installed a proper noval socket to be able to change different tubes freely. I know nothing about it, it is rare, it has no easy This is a 300 B from 300 Bucks Sound.Ĭan we make it sound as GOOD AS IT LOOKS?įirst - I did not like the small septal double triode (3A5) in the The sound in fact perfectly matches the price tag - 300 bucks. RemovingĬathode capacitors ALWAYS cleans the sound a lot!) (I think that the boomyīass in all Angels is a result of cathode bypass capacitor. Booomīooom Biiig Bass and muddy everything else. Out of the box this amplifier played typical Music Angel sound. So how about our cute little Chinese "Miss Shenzen" ? Except the AudioNote 300B KIT which must be one of the The soundīut I almost forgot to mention - they were all VERY expenceive. The amps with 300B which I heard before were all very weak in power,īut paired with "proper" speakers - were all very very good. It has probably 10 times more cult status than it deserves.īut someone who was influential - 70 years ago said that 300B is THE TUBE - and the world took this as an 11th commandment. Music Angel 300B Music Angel 300B - "The 300 Bucks amp"