Hi,
Not to mention they're poisonous to the environment IIRC...
In short, what we mean is that the sreengrid benefits from having its PS regulated.
As for schematics, anything using 6L6, 807, 5881 and no doubt a raft of others will work for inspirational purposes; from the mere basic to the lunacy fringe.
Cheers,😉
Not to mention they're poisonous to the environment IIRC...
In short, what we mean is that the sreengrid benefits from having its PS regulated.
As for schematics, anything using 6L6, 807, 5881 and no doubt a raft of others will work for inspirational purposes; from the mere basic to the lunacy fringe.
Cheers,😉
haha... okay.. then its diode stacking time😉
but, can i sub the 6sl7 for a tube of my choice? say a 12au7?
but, can i sub the 6sl7 for a tube of my choice? say a 12au7?
Hi,
No.
For comparison: a 12AU7 is related to, but not the same as, the 6SN7/12SN7, amplification factor is about 17.
A 6SL7 is ........,the 12AT7, amplification factor is about 60.
IOW, if you have 12AU7s, who hasn't, and you must use them then try to find a schematic that uses those.
Otherwise I'd recommend sticking with a 6SL7 . The Chinese and Russian ones are not that expensive.
Cheers,😉
No.
For comparison: a 12AU7 is related to, but not the same as, the 6SN7/12SN7, amplification factor is about 17.
A 6SL7 is ........,the 12AT7, amplification factor is about 60.
IOW, if you have 12AU7s, who hasn't, and you must use them then try to find a schematic that uses those.
Otherwise I'd recommend sticking with a 6SL7 . The Chinese and Russian ones are not that expensive.
Cheers,😉
If you're still at the design stage, you don't need to restrict yourself to 6.3V heaters. If you use 12.6V heaters, the valves are much cheaper. 12SL7 is much cheaper than 6SL7. Loctal equivalents are even cheaper, I recently bought some 14F7 for US$3 each.
A 12AT7 is not nearly as good as 6SL7.
A 12AT7 is not nearly as good as 6SL7.
sad thing being that the local tube store doesn`t carry a wide selection. i`m limited to common tubes. 12at7, 6sl7, and the rest of the mess....
i was thinking if it was a good idea to use cheap pentodes insted? maby a el34 driving a 6l6? just a silly idea... would it work? or output impedance of that stage be too high? i`m just throwing out ideas.😀
i was thinking if it was a good idea to use cheap pentodes insted? maby a el34 driving a 6l6? just a silly idea... would it work? or output impedance of that stage be too high? i`m just throwing out ideas.😀
Might as well use the EL34s as outputs.
There are a large variety of tubes available out there- all it takes is a phone call in most cases. If I had to rely on what I could buy locally, I'd never get an amplifier built.
There are a large variety of tubes available out there- all it takes is a phone call in most cases. If I had to rely on what I could buy locally, I'd never get an amplifier built.
?!
Have you been to Wellaudio? Frankie will not only offer the tubes but also excellent advice what to do with them.
Nothing silly here. I've used triode strapped 6L6 to drive 2A3 with excellent results.
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