NOS/NIB Preamp Tubes

RCA 12AX7's, 17mm, black plates from the 1950's…$95.00

RCA 12AX7's, 17mm, grey plates from 1959-60…$90.00

RCA 12AX7A's, 14mm, grey plates, 1960's and 1970's production…$85.00

-Limited Time Special Offer.

RCA 7025's, 14mm, grey plates…$120.00

GE 12AX7's, 17mm tubes, 1952-1953 production…$90.00

GE 12AX7's, 17mm tubes, 1954-1955 production…$75.00

GE 12AX7's, 17mm tubes, 1956-1957 production…$80.00

GE 12AX7's, 17mm tubes, 1958-1960 production…$85.00

GE 12AX7's, 17mm tubes, 1961 production…$90.00

GE 12AX7's, 17mm tubes, 1962-1965 production…$85.00

GE 7025's, 17mm tubes, seldom seen…$95.00

GE 12AX7A/7025's, 14mm tubes, excellent first gain stage tube…$85.00

GE 12AX7/ECC83's, 14mm tubes…$65.00

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

GE 12AX7WA's, 14mm, mil spec…$65.00

Sylvania 12AX7's, 1950's 17mm black plates…$75.00

Sylvania 12AX7's, 1950's 14mm grey plates…$95.00

Raytheon 12AX7's…$75.00

Tung-Sol 12AX7's…$90.00

Westinghouse 12AX7's, early 1960's 14mm tubes with D getter…$65.00

CBS 12AX7's, 17mm tubes from the 1950's…$65.00

Mullard 12AX7's, 163 production codes…$145.00

Mullard 12AX7's, 161 production codes…$150.00

Mullard 12AX7's, 17mm tubes with halo getter and f92 codes…$165.00

Mullard CV4004's, military issue box plates…$155.00

Amperex 12AX7's, 14mm plates, disk getter, 1970-1972 production…$125.00

Amperex 12AX7's, 14mm plates, small halo getter, 1962-1970 production…$145.00

Amperex 12AX7's, early 14mm tube, large halo getter, 1959-1962 production…$155.00

Amperex 7025's, 14mm plates, 1967 production…$150.00

Telefunken 12AX7's…$155.00

RFT 12AX7's…$60.00

Tungsram 12AX7's, late 1970's and early 1980's production…$55.00

EI 7025's, late 1970's and early 1980's production…$40.00

NEC 12AX7's, high quality Japanese production…$40.00

Samsung/NEC 12AX7's, outstanding Korean tubes…$40.00

Toshiba 12AX7's…$35.00

 

RCA 5751's, black plates…$65.00

Tung-Sol 5751's…$85.00

Sylvania 5751's, 1950's black plates with triple micas…$90.00

GE 5751's, early 1950's military stock with grey plates and triple micas…$65.00

GE 5751's, mid 1950's military stock, black plates with triple micas…$65.00

GE 5751's, late 1950's military stock, grey plates with triple micas…$50.00

GE 5751's, 1960's tubes with double micas…$40.00

 

Tung-Sol 12AY7's…$50.00

RCA 12AY7's…$50.00

GE 12AY7's…$45.00

GE 6072's, black plates, triple micas, military, industrial and commercial stock…$125.00

Sylvania 12AY7's…$40.00

 

Mullard 12AT7/ECC81's, original Blackburn production…$40.00

Mullard CV4024/12AT7's, Mitcham production…$30.00

RFT 12AT7's…$25.00

RCA 12AT7's, grey plates…$30.00

RCA 12AT7's, black plates…$40.00

RCA 6201's, black plates, extra support rods…$40.00

RCA 12AT7WA's, black plates, 3 micas, scarce…$45.00

Westinghouse 12AT7's…$30.00

GE 12AT7's, 1960's stock…$25.00

GE 12AT7's, 1950's "D" getter version…$30.00

GE 12AT7WA's, 1950's military stock with 3 micas…$30.00

GE 6201's, 1950's 5 Star production with 3 micas…$30.00

Ken-Rad 12AT7's, seldom seen…$40.00

 

Tung-Sol 12AU7's…$30.00

Tung-Sol 12AU7A's…$30.00

RCA 12AU7A's, clear tops…$30.00

Sylvania 12AU7's, 1950's 14mm grey plate tubes…$20.00

GE 12AU7A's…$20.00

RFT 12AU7's…$20.00

 

Telefunken EF86's…$85.00

Mullard EF86's, 14mm solid plates…$75.00

Mullard EF86's, 14mm mesh plates…$55.00

Mullard EF86's, 17mm mesh plates…$75.00

Amperex EF86's…$60.00

Dario-Miniwatt EF86's…$60.00

RTC EF86's…$55.00

Valvo EF86's…$55.00

Genalex Z729/EF86…$75.00

RFT EF86's…$35.00

-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 5691's, red base, rated for 10,000 hours…$95.00

RCA 5692's, red base, rated for 10,000 hours…$100.00

 

RCA 6AT6's…$5.00

Sylvania 6AT6's…$5.00

Raytheon 6AT6's…$5.00

Westinghouse 6AT6's…$5.00

RCA 6AV6's…$10.00

Raytheon 6AV6's…$10.00

Westinghouse 6AV6's…$10.00

Tung-Sol 6AV6's…$10.00

GE 6AV6's…$10.00

 

Sylvania 5879's…$10.00

RCA 5879's, 1960's production with double micas…$15.00

RCA 5879's, 1950's production with triple micas…$20.00