TECH: 6sj7 metal or glass difference

Hi all,
Is there a reason for using a metal vs glass envelope tube? In this
case, a 6sj7 in the ami b amp. I need to replace it (this one is metal)
and want to buy the correct one. Thank you, Rick.

On 2006-08-11 15:13:25 -0700, "flashbk13" said:

Hi all,
Is there a reason for using a metal vs glass envelope tube? In this
case, a 6sj7 in the ami b amp. I need to replace it (this one is metal)
and want to buy the correct one. Thank you, Rick.

There is some difference in power output and specs between the metal
and glass 6L6 tubes. I don't think it matters for the low power tubes
though.

John :-#)#
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just flip out."

Rick - The 6SJ7 is a high-gain amplifier tube, and the metal type has
the advantage of its metal shell acting as a shield. A glass type
might introduce some hum. I'd go with the metal one if I were you.

*jukebox jimmy

*********************

flashbk13 wrote:
Hi all,
Is there a reason for using a metal vs glass envelope tube? In this
case, a 6sj7 in the ami b amp. I need to replace it (this one is metal)
and want to buy the correct one. Thank you, Rick.

Thank you for the reply Jimmy, Rick.
Record Hound wrote:
Rick - The 6SJ7 is a high-gain amplifier tube, and the metal type has
the advantage of its metal shell acting as a shield. A glass type
might introduce some hum. I'd go with the metal one if I were you.

*jukebox jimmy

*********************

flashbk13 wrote:
Hi all,
Is there a reason for using a metal vs glass envelope tube? In this
case, a 6sj7 in the ami b amp. I need to replace it (this one is metal)
and want to buy the correct one. Thank you, Rick.