OTL amps, my pick for the tube used.


This is my OTL tube pick for an OTL the 6C33C tube.
I don't believe much can compete with it for current, and that the big achilles heel of OTL's  

https://www.navisonaudio.com/uploads/images/thumb_medium/otl-150-1.jpg

https://www.navisonaudio.com/uploads/images/thumb_medium/otl-150-3.jpg

Just had to show this, in it's glowing glory.

Cheers George
128x128georgehifi
Before George points it out, the datasheet shown at the second link in his last post does in fact say "output current: 100 amps (continuous)," for the ME 1400/ME 1500 amplifiers referred to in that post (as opposed to the OTL amp referred to in his OP).
@almarg If you look at their website, they claim 100 watts into 8 ohms and 150 into 4. So I am assuming that '100 amps' is a typo, not uncommon on the web... but just for fun, since Power = R x I squared, and giving the amp the benefit of the doubt by assuming a 1 ohm load, 100 amps would work out to an amplifier that makes 10,000 watts into 1 ohms, and 40,000 watts into 4... Obviously the amp can't do that, so I'm going with Occam's Razor on this one, IOW a typo is the simpler explanation :)
However, as best as I can tell from some somewhat blurry rear panel photos I found on the net there is a 5 amp fuse located immediately adjacent to the ME amp’s pendant power cord.
Here is the ME1500 spec sheet for you Al (bmp) a bit clearer maybe.
https://ibb.co/2Fq1fPZ
https://ibb.co/HCYVmfk
https://ibb.co/XpsGYZQ

Cheers George


^^ Clearly the 100 amp thing has nothing to do with its output power. That is likely the 10mS power supply short circuit current.
If you look at their website, they claim 100 watts into 8 ohms and 150 into 4. So I am assuming that ’100 amps’ is a typo, not uncommon on the web

Hi Ralph,

What amplifier are you referring to? What I was pointing out is that George’s statement about 100 amps referred to the solid state ME 1400 and ME 1500, which are not the amp referred to in the OP. And the ME 1400 and ME 1500 are specified as being far more powerful than 100 and 150 watts into 8 and 4 ohms, respectively. And what I was pointing out was that (a) the power ratings of the ME 1400 and ME 1500 into 2 and 1 ohm loads are not consistent with what appears to be the rating of their mains fuses; and (b) the 100 amp maximum continuous "output current" specification of the ME 1400 and ME 1500, even if accurate, would only apply in the case of absurdly low load impedances and is therefore not relevant to any real world usage of those amps. As I’m sure you agree.

Also, I couldn’t find any detailed specifications for output power or anything else for the OTL-150 at the Navison site (just some references to "coming soon"), although that has no relevance to my posts in this thread.

Best regards,
-- Al

Also, I couldn’t find any detailed specifications for output power or anything else for the OTL-150 at the Navison site (just some references to "coming soon"), although that has no relevance to my posts in this thread.
Same here, I have no idea what he's looking at, or the relevance to the ME1500 doing 100amps either????

Cheers George