• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

6P3Se in Mcintosh 240...

I bought a quad of 6P3SE/6N3cE to try out in my Mcintosh 240, as I heard it was a good tube for the amp but I see the tubes have six rather than seven pins and all of a sudden I'm worried I need to do something to run the tube in it... or, plug it in and have my beloved amp burst in flames.

Can someone confirm for me that the 6P3SE can go into a 240 as-is? Thank you.
 
I don't see any way to adjust the idle current at the cathodes?jeff

Macs don't do that. Arguably they don't need to. There is *huge* NFB: a lot due to semi-cathode-follower configuration, and more overall. The 6L6 types have a long "toe". Mac just aimed at "cool", knowing the NFB would bring the tubes into play with authority.
 
I find that it's interesting that the MC240 has a rating of "Total harmonic distortion: 0.5%"
Yet.... those amps are in such demand..... is it because of the name?


And my lowly Technics receiver is rated as Total harmonic distortion: 0.008%.


You'd think that a "connoisseur" would want a lower HD for musical pleasure and bragging rights.
 
I find that it's interesting that the MC240 has a rating of "Total harmonic distortion: 0.5%"
Yet.... those amps are in such demand..... is it because of the name?


And my lowly Technics receiver is rated as Total harmonic distortion: 0.008%.


You'd think that a "connoisseur" would want a lower HD for musical pleasure and bragging rights.

That would be the tubes vs. ss debate in a nutshell.

Thanks all for the input... I will try them out this weekend!