[ForSale-Swap] Shorty 3-400Zs

[Ron Trepka]

These were my spares for a TEMPO 2000 desktop amp that has been traded some time ago. The receiver of the amp decided to not take the spares although I told him of the issue.
 
I never really needed these as the original tubes never went bad.   They are the 3-400Z version that does not have the base or the pin plate and are therefore about 1/2 inch shorter than the 3-400Z or 3-500Z that are almost exactly the same height.  These were the only ones that would fit into that amp and are EXTREMELY difficult to find.
 
I am not exactly sure of the manufacture but these tubes were made pre-Nixon.
I suspect $200 for a pair  is about the going price including shipping.
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Ron