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A pair of marconi PX4, smaller brother of PX25


Article Sent By: A_Mckinney@machine--tools.com (Aisha Mckinney)
Aisha Mckinney is presenting: A pair of marconi PX4, smaller brother of PX25
These are very old vaccum tubes from late 1920's and are fine examples of British triodes from post-war time when large triodes started to become commercially available.
These are to be sold as it is and no return because of their age (from late 1920's !).
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Contact A_Mckinney@machine--tools.com (Aisha Mckinney) for additional information. This email is used for forwarding to newsgroup user.




A pair of marconi PX4, smaller brother of PX25