BWS Consulting: Exclusive Vacuum Tube Audio Design

Audio Engineering Services & Home Theater Service

I Repair/Customize Guitar Amplifiers; Fender - Matchless

Call 703-536-3910

Please Review All Directories And Sub-Directories, I Have Affordable Introductory Amplifier Options For Systems.

Please Request Services For Home Theater Systems And Audio Gear With The Contact Forms Menu

 
   
 

Paypal, Check or Money Order Accepted For Payment

 
   
   
 

Selected Vacuum Tubes

BWS Consulting supplies selected, medical  Telefunken 12AX7s and fully screened Bendix 6900 audio tubes.  I sell high quality vintage vacuum tubes from: Amperex, Bendix, General Electric, Mullard , Radio Corporation Of America, Siemens, Sylvania, Telefunken, and Tung-Sol.

I will consult with you about your audio system, so that we can select the vacuum tubes that match best with your equipment.  Please call me with model information and with information about what tubes you are currently using.

The following lists some of the tubes that are currently available for shipment:

All tube pairs are matched and tested in circuit.  Codes are matched when available.  Shipping is additional.

 

Tube Rectifiers 5R4, 5U4, 5Y3, .5931,GZ-34, 6087... Various Brands.....................Contact Form Request

Amperex BB 12AU7A ECC82 matched pair NOS boxed 60s.................................................$150 per pair

Telefunken 12AX7 NOS smooth plates Wa codes,Selected regular,Red, Blue or Yellow Tip..$350-$800 per pair

General 12AX7 Tube Types:  RCA, GE, Sylvania, Amperex, Raytheon, Tung-Sol..........Contact Form Request

Siemens E288-CC gold pins early vintage NOS boxed........................................................$250 per pair

Amperex 6922 gold pins 60s & 70s...........................................................................$125-$250 per pair

Amperex 7119 60s & 70s...........................................................................................$80-$140 per pair

Tung-Sol 5998 power tube....................................................................................Contact Form Request

Tung-Sol 7236 power Tube...................................................................................Contact Form Request

6267/EF-86 Pentode noise selected.........Amperex,Mullard & Telefunken.......................$30-$60 each tube

Amperex 7308 gold pins 60s & 70s.......................................................................Contact Form Request

Amperex 7316 special 12AU7 60s & 70s................................................................$130-per tube MP $280

Amperex or Mullard 8233 treated............................................................................$375 per pair

Sylvania or Tung-Sol Brown Base 6SL7GT...............................................................$30 each

Sylvania Brown Base 6SN7WGT 3 Hole Plate..........................................................$180 per pair

Sylvania Black Base 6SN7W Crome Dome..............................................................$180 per pair

Sylvania Black Base 6SN7/ VT-231 Tall Bottle...........................................................$150 per pair

Sino original 845 power tube....................................................................................$160 per pair

RCA 12BH7A Gray Plate.........................................................................................$ 50 each

RCA 12BH7 Black Plate..........................................................................................$ 75 each

General receiving Tubes: 12AU7, 12AT7, 12BH7, 6CG7, 6DJ8, 5751, 5814, 6201......Matched Sets Available-

..............................................................................................Contact Form Request


 

TO VIEW SPECIAL TUBE LISTINGS PLEASE SCROLL DOWN FOR DETAILS


BENDIX/MU 6900 SPECIAL 5687 DUAL TRIODE

 

Bendix/Mu 6900 Selected Pair  $1550.00 This pair is(SOLD) low noise selected; burned in and matched for line use or amplifier use.  These tubes have very closely balanced sections.  TV-2 readings are102/105% quality, and 104/110% quality; where minimum is 63% quality.  Excellent current balance in this pair.  It is common for  6900s to have grid leakage problems, so many of the tubes do not pass testing. I check each tube for current and noise in a balanced high voltage preamp circuit.  You are buying properly working tubes with a 90day warranty against failure.

 

 

 

$1850.00 FOR THE PAIR UNITED ELECTRONICS 845(THIS PAIR IS SOLD)

$1850.00 FOR THE PAIR(PHOTOS ABOVE)

UNITED ELECTRONICS 845 MATCHED PAIR. PLEASE OBSERVE ALL MARKINGS.  I CLEANED THE BASE

OF THE FIRST TUBE AND TRIMMED  THE SOLDER.  ALL PINS ARE SOLID AND CLEAN.  THE TUBES HAVE

EXCELLENT AC AND DC CURRENT BALANCE AND HAVE BEEN RUN AT 1150 VOLTS Bias -151v and -150v

grid with +21v on the comon cathode resistor.

Sino 845 pairs $160.00 Burned In and matched for AC and DC current balance!

NOS Telefunken 12AX7 Wa Codes, Selected By Grass Valley Instruments, Diamond Glass, Blue Tip or Yellow Tip Selected Low Noise Pairs, Price $360.00

NOS Siemens E-288CC Dual Trode Gold Pins, Low Noise $250.00 Per Matched Pair

Amperex JEP 6922 Gold Pin Tubes Matched Pair White Label New Condition. Gm 17,000 all 4 sectionsAmperex JEP 6922 Matched Pair, New Condition,

66-52 Date Codes Gold Pins, Gm = 17,000 for all four sections. Low Noise, Price $225.00

Amperex JAN 6922 Matched Pair, New Condition, 68-50 & 68-47 Date Codes Gold Pins, GM 17,000, 17,000 - 17,000, 17,500, Low Noise, Price $180.00

NOS Philips Matche Pair E188CC(7308) Dual Triode  Gm = 18,000 For All Four Sections, Low Noise, Price $185.00

NOS Pro/Comm Made By Amperex Matched Pair 6DJ8 Dual Triode Gold Pins, Gm = 18,000 For All Four Sections, Low Noise, Price $110.00

NOS Amperex 6DJ8 Dual Triode, Matched Pair Selected For Hewlett Packard 78-32 date codes Gm = 16,000 For All Four Sections, Low Noise, Price $110.00

NOS Amperex 6DJ8 Dual Triode, Matched Pair Selected For Hewlett Packard 58-26 Date Codes, Very Rare D-Foil Getter GM = 18,000, 17,000 - 16,900, 17200, Low Noise, Price $250.00 SOLD

NOS Quad Of Philips E188CC SQ Dual Triode Gold Pins.  ROD3, ROD1, ROD3, & ROA4 codes; 17000, 17000 - 16500, 16500 - 16500, 16500 - 16500, 16500.  Price $350.00