You are here: Home > Prem Tubes (MULLARD-BRIMAR-GENALEX) F/Leads Plug&Play > Flying Leads Plug&Play CV4033 - Premium 12AT7 ECC81 E81CC ECC801S 6201 6060 CV455 CV4024 type.
We found 12 results matching your criteria.
Flying Leads Plug&Play CV4033 - Premium 12AT7 ECC81 E81CC ECC801S 6201 6060 CV455 CV4024 type.

Worthy upgrade (Brimar CV4033) May 24, 2010
Reviewer: George Fink from Beaumaris, Victoria Australia  
I purchased these to replace the EH 12AT7 tubes in my Manley Mahis amps. After contacting tubemonger re suitable tubes they suggested a Siemens and 2 Brimars one of which was this type.

The sound of my amps changed quite dramatically. The harshness and coldness in the mid was replaced by a much smoother and detailed sound, warmer and more involving. Treble is smoother and not as upfront.  Bass is deep and more detailed somehow. Overall a great improvement.

The tubes sit on a black Plastic base and plug in as normal, this base is attached very well and no wobble has been noted.

I tried a Brimar 6060 yellow T in this amp and preferred the cv 4033. More life in the music, the 6060T sounded flat in comparison.  

Overall a great upgrade to new tubes, not much cost and 10000 hr life. You can't lose.

Brimar CV4033 May 10, 2010
Reviewer: Anonymous from San Diego, CA  
The CV4033 tubes that I did buy will satisfy the 12AT7 tube rolling urge for a long time to come.  These are in a totally different league from the RFT and Electro Harmonix tubes tried previously in Bottlehead Paramount amps. These tubes have warmth and detail similar to what I experienced with Brimar 13D5 tubes used in a Bottlehead Foreplay preamp.
Sort By:
Page of 1
Brand New MINT NOS NIB Rare 1970-71 BRIMAR CV4033 Black Plate Military tubes. CV4033 Flying Lead is Premium Grade, High Reliability Long Life version of CV4024/6060/ECC81/12T7 valves. STC Rochester Plant Date Codes. Made in England. Brand New MINT NOS NIB Rare Mid-Late 1960s BRIMAR CV4033 Black Plate Military tubes. CV4033 Flying Lead is Premium Grade, High Reliability Long Life version of CV4024/6060/ECC81/12T7 valves. STC Rochester Plant Date Codes. Made in England. Brand New MINT NOS Rare 1960-62 - BRIMAR CV4033 Black Plate with Copper Grid Post Military tubes. Factory tested and serialized*. CV4033 Flying Lead is a PremGrade, High Reliability Long Life version of CV4024/ECC81/12AT7. STC Rochester Plant Prod England
2040M 2041M 2042M
Brand New MINT NOS Rare 1960-62 BRIMAR CV4033 Black Plate with Copper Grid Post Military tubes. Factory tested/serialized*. CV4033 Flying Lead is a Prem Grade, High Reliability Long Life version of CV4024/ECC81/12AT7. STC Rochester Plant England. IMPERF Brand New MINT NOS Rare 1960-62 - BRIMAR CV4033 Black Plate with Copper Grid Post Military tubes with IMP FLASH.Factory tested and serialized*. CV4033 Flying Lead is a PremGrade, High Rel Long Life ver. of CV4024/ECC81/12AT7. STC Rochester Plant Prod Engl Brand New MINT NOS NIB Rare 1970-71 BRIMAR CV4033 Black Plate Military tubes. CV4033 Flying Lead is Premium Grade, High Reliability Long Life version of CV4024/6060/ECC81/12T7 valves. STC Rochester Plant Date Codes. Made in England. IMPERFECT TEST SCORES.
2042MI 2042MG 2040M-IMP
Brand New MINT NOS NIB Rare 1960-62 BRIMAR CV4033 Black Plate Military tubes. CV4033 Flying Lead is Premium Grade, High Reliability Long Life version of CV4024/6060/ECC81/12T7 valves. STC Rochester Plant Date Codes. Made in England. IMPERFECT SCORES. Brand New, MINT NOS NIB Rare 1958 BRIMAR CV4033 3-MICA Black Plate Halo GT, Copper Grid Post Military tubes. IMFactory tested and serialized*.  CV4033 Flying Lead is a Prem Grade, High Rel Long Life ver of CV4024/ECC81/12AT7. STC Eng Brand New MINT NOS NIB Rare 1960 BRIMAR CV4033 Black Plate with Copper Grid Post Military tubes. Factory tested and serialized*. CV4033 Flying Lead is a PremGrade, High Reliability Long Life version of CV4024/ECC81/12AT7. STC Rochester Plant Prod England.
2044M 2045MI 2048M
Brand New MINT NOS Rare 1960-62 - BRIMAR CV4033 Black Plate with Copper Grid Post Military tubes. Factory tested and serialized*. CV4033 Flying Lead is a PremGrade, High Reliability Long Life version of CV4024/ECC81/12AT7. STC Rochester Plant England - SL Brand New MINT NOS Rare 1960-62 - BRIMAR CV4033 Black Plate with Copper Grid Post Military tubes. Factory tested and serialized*. CV4033 Flying Lead is a PremGrade, High Reliability Long Life version of CV4024/ECC81/12AT7 STC Rochester Plant England SLIMP Brand New MINT NOS NIB Rare 1960 BRIMAR CV4033 Black Plate with Copper Grid Post Military tubes. Factory tested and serialized*. CV4033 Flying Lead is a PremGrade, High Reliability Long Life version of CV4024/ECC81/12AT7. STC Rochester Plant Prod England.
2042M-SL 2042M-SL-IMPSC 2048MZ