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In Reply to: RE: These are the tubes I would love to hear in the Deuce or the Mc275. posted by Michael Samra on May 02, 2014 at 03:47:02
wasn't the KT-90's VTL's answer, converting the 156 to to a KT 88 base ?
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Shuggie makes a version of the EL-156 as well.
Honest amplification is better than excessive 2nd order distortion anytime.
The Chinese EL156 are a poor replacement for the Telefunken tube although somewhat cheaper.The filament current is 1.8 amps vs 1.4amps for the KT88s and the adapters are for changing the pinout and do nothing for the circuit.The bias point will be approx half of what the 88s need and the screen grid is rated for 450v max.The German Telefunken tubes are excellent the Chinese are less so.
Yes but the Chinese ones are cheaper in price and I haven't seen too much junk come out of the Shuggie plant in the last 12 years.Granted,they aren't the Telefunkens but they can give you an idea if your amp responds well to that type of tube.
Honest amplification is better than excessive 2nd order distortion anytime.
I built a se amp using the Chinese EL156 running the plates and screen grids at 400v and 60 ma as quasi triodes.I started off with 8 EL156 tubes and run the amp two or three hours a day,more on weekends,and after 5 months all but three tubes had developed screen grid shorts and the last two I changed are making the arcing sounds of a tube about to die.Using KT88s the amp plays without problem for months on end making me question quality control of the Shuggie plant.I can understand one or possibly two out of eight having problems but cannot recommend these tubes as the 88s sound at least as good.
Thanks for the tip! I've been wondering about the performance and quality of the Shuggie EL156. There hasn't been much word up until now on the consistency of these tubes. It's a shame they're substandard :(
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May your tubes be lively and long-lasting. Holy be thy heater.
The Shuggie KT88s are great however,the EL156 they don't make very many of to perfect the quality of them.I think if they made more of them,I'm sure quality would be better.Those may even be old stock production they are selling.
Honest amplification is better than excessive 2nd order distortion anytime.
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