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Hickok 539c settings for a Cca tube?

Posted on October 31, 2020 at 10:56:22
Permanent Waves

Posts: 112
Location: Keystone state
Joined: December 23, 2016
Anyone know for certain what are the correct settings and bias volts for s Cca tube? Should I just go ahead and use the set up for a 6922 tube or is the ecc88 set up more appropriate? I could not find the set up in the roll chart or supplement manual anywhere
Sitting here on the Group W bench


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RE: Hickok 539c settings for a Cca tube?, posted on November 1, 2020 at 07:49:57

Posts: 2287
Location: Winnipeg, Manitoba
Joined: September 1, 2005
March 1, 2018
Not sure if this helps, but the site refers to the Siemens Cca as a 6922/E88cc equivalent. Further down the page is a data sheet pdf link for Telefunken version confirming the same thing.



"I know just enough to get into trouble. But not enough to get out of it."


RE: Hickok 539c settings for a Cca tube?, posted on November 15, 2020 at 17:34:07
Rod M
Web Geek

Posts: 13086
Location: So. California
Joined: March 1, 1999
March 1, 1999
You should find that the 6922 and EC88 settings are the same.

CCa = E88CC = 6922 = CV2492


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