17 Oct
2023
17 Oct
'23
9:24 a.m.
On 10/17/23 07:48, David Breneman via Jukebox-list wrote:
So, just out of curiosity, since this is something I've been wonderingabout for decades : -) What is the purpose of metal envelope tubes? Durability? Shielding? Conducting heat?
Ruggedness and shielding are the main advantages. Possibly a cost issue, not sure of the manufacturing costs vs. glass at the time. -- Jay Hennigan - jay@west.net Network Engineering - CCIE #7880 503 897-8550 - WB6RDV