Hi Perry, I see several EBAY sellers in the USA with new old-stock 6C4 tubes ranging from $6 to $12 each with reasonable shipping.
example: https://www.ebay.com/itm/156734272038 Mike VK6ADA https://vk6ada.com.au/ On Sat, Oct 18, 2025 at 2:20 PM Jacques Fortin <[email protected]> wrote: > Hi Perry, > Are the NOS 6C4s so rare now that you had to use a "sub" ?? > A 6AB4 is half of a 12AT7: way different from a 6C4, IMHO (half of a > 12AU7). > > 73, Jacques, VE2JFE in Montreal > > ______________________________________________________________ > R-390 mailing list > Home: http://mailman.qth.net/mailman/listinfo/r-390 > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ R-390 mailing list Home: http://mailman.qth.net/mailman/listinfo/r-390 Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
