NOS/NIB Preamp Tubes

RCA 12AX7's, 17mm, grey plates from 1959-60…$175.00

RCA 12AX7A's, 14mm, grey plates, 1960's and 1970's production…$145.00

-Limited Time Special Offer.

RCA 7025's, 14mm, grey plates…$200.00

GE 12AX7's, 17mm tubes, 1954-1955 production…$145.00

GE 12AX7's, 17mm tubes, 1956-1957 production…$145.00

GE 12AX7's, 17mm tubes, 1958-1959 production…$140.00

GE 12AX7's, 17mm tubes, 1960 production…$145.00

GE 12AX7's, 17mm tubes, 1961 production…$145.00

GE 12AX7's, 17mm tubes, 1962-1965 production…$145.00

GE 7025's, 17mm tubes, seldom seen…$165.00

GE 12AX7A/7025's, 14mm tubes, excellent first gain stage tube…$175.00

GE 12AX7/ECC83's, 14mm tubes…$135.00

-Great choice for the second gain stage and phase inverter positions of Marshall and Vox style amps.

GE 12AX7WA's, 14mm, mil spec…$145.00

Raytheon 12AX7's…$120.00

Tung-Sol 12AX7's, 1950's 17mm tubes…$175.00

Tung-Sol 6681/12AX7A's, 1960's 17mm production…$165.00

Mullard 12AX7's, 163 production codes…$225.00

Mullard 12AX7's, 161 production codes…$235.00

Mullard CV4004's, military issue box plates…$245.00

Amperex 12AX7's, 14mm plates, disk getter, 1970-1972 production…$195.00

Amperex 12AX7's, 14mm plates, small halo getter, 1962-1970 production…$245.00

Amperex 12AX7's, early 14mm tube, large halo getter, 1959-1962 production…$255.00

Amperex 7025's, 14mm plates, 1967 production…$245.00

Amperex 7025's, 14mm plates, 1971 production…$225.00

Amperex 12AX7's, 17mm plates, 1958 MC6 production…$295.00

Telefunken 12AX7's, 17mm ribbed plates, diamond in glass…$295.00

RFT 12AX7's…$95.00

Matsushita 12AX7's…$95.00

Samsung 12AX7's…$95.00

RCA 5751's, black plates…$115.00

Tung-Sol 5751's…$125.00

GE 5751's, 1953 5 Star stock with black plates and triple micas…$145.00

GE 5751's, mid 1950's military stock, black plates with triple micas…$135.00

GE 5751's, 1963 and 1966 military stock with double micas…$85.00

RCA 12AY7's…$145.00

GE 12AY7's, Halo getter…$115.00

GE 12AY7's, mid to late 1950's D getter…$175.00

GE 12AY7's, early 1950's D getter…$175.00

Mullard 12AT7/ECC81's, original 1960's and early 1970's Blackburn production. These are NOT to be confused or conflated with the 1980's Mitchum factory CV4024's…$55.00

RCA 12AT7's, grey plates…$45.00

RCA 12AT7's, black plates…$55.00

RCA 6201's, black plates, extra support rods…$60.00

GE 12AT7's, 1960's stock…$35.00

GE 12AT7's, 1950's "D" getter version…$40.00

GE 12AT7WA/6201's, 1956 military stock with 3 micas…$50.00

GE 6201's, 1957 5 Star production with 3 micas…$50.00

Ken-Rad 12AT7's, seldom seen…$60.00

RCA 12AU7A's, clear tops…$75.00

RFT 12AU7's…$45.00

Mullard EF86's, 14mm solid plates…$120.00

Amperex EF86's…$120.00

Dario-Miniwatt EF86's…$120.00

RFT EF86's…$65.00

-Many of my competitors are clueless on what differentiates an RFT from a Tesla-made EF86 tube. Yes, there are strong similarities in their construct, but there are also meaningful differences that contribute to the RFT EF86's superior performance. Buy your RFT EF86's from Hi Test and get what you are paying for.

RCA 6AT6's…$15.00/pair

Sylvania 6AT6's…$15.00/pair

Sylvania 6AV6's…$15.00

GE 6AV6's…$15.00

Sylvania 5879's…$15.00

RCA 5879's, 1960's production with double micas…$20.00

RCA 5879's, 1950's production with triple micas…$25.00