What is the pinging I hear when I first turn on my amps?

SET Asylum

Single Ended Triodes (SETs), the ultimate tube lovers dream.

Topic - What is the pinging I hear when I first turn on my amps? - 2bkurius 09:29:18 12/18/11 (10)

RE: What is the pinging I hear when I first turn on my amps? - moffat 02:47:02 12/23/11 (0)

the pinging could be the glass "expanding" during warm-up... - Interstage Tranny 18:16:05 12/22/11 (0)

RE: What is the pinging I hear when I first turn on my amps? - Al Noakes 12:58:17 12/20/11 (0)

It's tube heating up and expanding. Definately not shot noise. - Bas Horneman 04:24:41 12/20/11 (3)

RE: It's tube heating up and expanding. Definately not shot noise. - drlowmu 15:14:47 12/20/11 (2)

No you are wrong. Very very very wrong. - Bas Horneman 13:16:32 12/22/11 (1)

"Shot Noise characteristic is white." - Tre' 17:40:52 12/22/11 (0)

This is called "Shot Noise" in Electronics - drlowmu 11:24:48 12/19/11 (0)

Well my Wavac EC 300B with WE tubes does this too. I don't have a clue why. NT - jnr 16:41:57 12/18/11 (0)

My Mesh Plate Chinese 300B tubes do this............. - Cut-Throat 10:47:03 12/18/11 (0)

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