General Electric GE 25Z5 Vacuum Tube Valve NOS NIB Gene Roddenberry This lot of six RCA

This lot of six RCA 6GH8A tubes tested to spec on our Paul Hart-calibrated TV7/U

highlighting and notes

The dust jacket looks new -- as does the book itself

They have late 1930s retro styling with coke bottle glass envelopes and mesh plates

General Electric GE 25Z5 Vacuum Tube Valve NOS NIB Gene Roddenberry This lot of six RCAThis new old stock, new in box GE 25Z5 tube tested to spec on our Paul Hart calibrated TV7 U. This listing is for the GEs only; the other tubes are back up stock. BECAUSE OF THE BIZARRE, INTRUSIVE AND DRACONIAN GERMAN PACKAGING REGULATIONS AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM WE NO LONGER SHIP TO GERMAN ADDRESSES. WE WILL HAPPILY SEND YOUR PACKAGE TO A NEIGHBORING COUNTRY OR MAKE SUITABLE ARRANGEMENTS. IN 2021 WE PURCHASED