@thecarpathian , Ha Ha , I should have bought Microsoft when it first was available. The guy had 10 of those tubes at $125 each , bought 4 should have bought them all. It’s sad what’s happened to nos tubes in the last 10 years.
Additional Preamp Tubes
I am looking to purchase an additional matched pair of NOS tubes for my PS Audio BHK preamp. I currently own Brimar CV4003, Telefunken Medicals & Siemens Nickel Plate.
When I began building my system 3.5 years ago, I wanted revealing - accurate. Now I want a tube that is more musical / warm, similar to the Brimar’s with a touch more warmth.
My system: Aurender N150 > Briscati M3 > BHK > Moon 760A > KEF Reference 3’s. Rega P8 / Hana ML > Gold Note PH 10 on analog. Cables are Kimber Select from sources & Transparent Ultra’s pre > amp > speakers.
ChatGPT recommended Mullard CV4003. There is a pair on eBay from Valve Tubes. Please let me know your thoughts on this and other potential tubes, and if you have any experience with Valve tubes. Thanks!
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@buellrider97 , you and me both! Also Apple, Google, and Amazon! Wow, $125 each. At least you got four. Could have bought just two! |
@markmuse Thanks, I looked at 6v and almost bought a pair of 6v Amperex a little while back. As I understand it, noise can be an issue. |
Just ordered the Premium Matched Pair CV4003/M8136 NOS Mullard tubes. They are Markham manufactured, so while less warm than the Blackburn’s they may in fact be a perfect fit. Mitcham was Mullard’s specialized plant for military, industrial, and high-reliability tubes. Consequently, their CV4003s often sound slightly more linear, detailed, and open than their Blackburn siblings. You still get that beautiful liquid midrange, but with a touch more top-end extension, a slightly faster transient response, and a tighter bass grip. We shall see. Thank you for your advice.
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