5E3 Big (6l6's)

[matt h]

(deleted)

[M Fowler]

and run 5881 instead of 6L6's.

[renshen1957]

Cheers all...i have decided i'm gonna build me a 5e3 as the parts are abit easier to source here in the uk...i will keep you all updated when i start the build. thanks again

Hi

If your PT has sufficient heater current, then you can substitute other power tubes into the 5E3 circuit. You will have no more power, but different tone.

Been there, done that. I used the amp to test the tonal properties of power tubes and tube rectifier sag. I tested el34 Kt 66 Kt 77 6550 Russian 6l6 vintage 6v6 & 5881 tubes。 The subjective winner, the russian 6l6 nos

Best regards

Steve

[showbander]

Cheers all, I wont be buying in kit form & will source all the parts for the 5e3 on the net & tubetown...
Gonna buy the chassis & turretboard and set about the board for starters.

So am i right in thinking from looking at the diagram all the resistors are 0.5 watts unless stated otherwise ?

As for the 2 watt resistors , will 3 watters be ok on the board or should i stick exactly to the wattages stated ?

Thanks

[Tone Lover]

3 watts would be fine .
Bill

[pdf64]

Consider using Bluebell for the transformer/s at least.
Philip is very helpful and the Hammond range should include something to suit http://www.bluebellaudio.com/guitartransmain.htm

The 291CEX may suit a 5E5 or 5E5-A fairly well, guess a static B+ of about 410V with a 5U4.

if you're going to drop 6L6GC's into a 5e3-ish circuit .., you've got to remember that the drive voltage required to make full power is about three-to-five times what is necessary for 6v6's--especially if you're going to shoot for something over 400V on the plates and bias accordingly

matt, I can't see that the signal drive voltage requirement will be much different for 6L6 or 6V6.
My experience is that either should settle to a static cathode voltage somewhere between 20 and 30V, which may rise to 40-50V at full crank.
As Vk defines the signal voltage required to reach clipping (at Vg-k =0), the same cathodyne etc arrangement could serve either.
Pete

[showbander]

Thanks for all the help fellas ! I've decided on the 5e3 build..I love those little amps and really wanna build one....Just getting things in my head and plan out before i buy all parts etc....I shall be using Ceriatone layout.

I will use the bus ground scheme only a little unsure where the 22uf (40v) grounds too (?)

I figure the filaments from pilot light goes PT then off to pins 2 & 7 of the 6v6s.

Thanks all