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Author Topic: Halli SX24 tubes  (Read 2144 times)
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VK7ZL
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« on: January 06, 2013, 04:22:26 PM »
Does anyone know if the original 6SK7's in an SX24 were glass or metal?

My SX24 has a mixture. Does it make any difference using one or the other?

Bob  VK7ZL
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W7TFO
WTF-OVER in 7 land Dennis
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« Reply #1 on: January 06, 2013, 04:58:15 PM »
Metal tubes were the rage then.

They were thought of as better for RF as they were already shielded.

Not being gifted with Hallicrafters knowledge, I couldn't say as to what was original.

73DG
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KM1H
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« Reply #2 on: January 07, 2013, 08:35:07 PM »
They came with metal and pin 1 on the sockets is grounded to the shell. Metal were popular to many brands but sales leaders such as Philco and Zenith refused to use them due to a big pissin contest with RCA going back to the 20's.

Carl
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VK7ZL
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« Reply #3 on: January 09, 2013, 12:07:48 AM »
Thanks Dennis & Carl for the replies.
I will find a couple more metal tubes for mine.

Bob  VK7ZL
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