NOS NIB SYLVANIA MIL SPEC 6CG7 VACUUM TUBES 1958 US AIR FORCE 6FQ7 7026
Item History & Price
| Reference Number: Avaluer:7525099 | Model: 6CG7 |
| Brand: SYLVANIA | Country/Region of Manufacture: United States |
| Type: Vacuum Tube |
Up for sale is a NOS NIB pair of 6CG7 tubes. These are mil spec, being made for the US Air Force in 1958. There are long grey plates with a chrome shield between the plates along with a "U" getter. Come in original boxes and packing. The exact same equivalent as the 6FQ7.
These are listed at $30 each from on-line vendors such as this one: https://tubeworldexpress.com/collections/preamp/6cg7?page=2
A detailed description of the 6CG7 can be found ...on this site: http://oldstockaudio.blogspot.com/2010/02/12au7-12bh7-6cg7-whats-best.html
Here is part of that discussion: The 6CG7 (or 6FQ7 which is the same exact tube) is identical in internal construction to the 6SN7. The 6SN7 has the reputation of being the most linear of the medium mu triodes and the 6CG7 follows suit. Also, the 6CG7 line is remarkably similar in audio performance across various manufacturers of the same vintage or age. It is a good tube for early or middle stage amplification and has the added bonus of a grounded shield between sections, which reduces hum and increases channel separation.
All tubes are mailed USPS Priority Mail, which saves you on handling or buying boxes. You pay the postage only calculated by Ebay when I print out the shipping label.
I note that the free wheeling tube auction days on Ebay are long gone, replaced by mostly But It Now offerings at very high prices. I'm checking prices and doing my reasonable best to undercut these prices and still make it worthwhile to list. Feel free to ask questions but I think I've covered the bases here.
These are listed at $30 each from on-line vendors such as this one: https://tubeworldexpress.com/collections/preamp/6cg7?page=2
A detailed description of the 6CG7 can be found ...on this site: http://oldstockaudio.blogspot.com/2010/02/12au7-12bh7-6cg7-whats-best.html
Here is part of that discussion: The 6CG7 (or 6FQ7 which is the same exact tube) is identical in internal construction to the 6SN7. The 6SN7 has the reputation of being the most linear of the medium mu triodes and the 6CG7 follows suit. Also, the 6CG7 line is remarkably similar in audio performance across various manufacturers of the same vintage or age. It is a good tube for early or middle stage amplification and has the added bonus of a grounded shield between sections, which reduces hum and increases channel separation.
All tubes are mailed USPS Priority Mail, which saves you on handling or buying boxes. You pay the postage only calculated by Ebay when I print out the shipping label.
I note that the free wheeling tube auction days on Ebay are long gone, replaced by mostly But It Now offerings at very high prices. I'm checking prices and doing my reasonable best to undercut these prices and still make it worthwhile to list. Feel free to ask questions but I think I've covered the bases here.
