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Bob's EZ Shop

Custom Vacuum Tube Sets for Musicians, Audiophiles and Radio Operators. All tube brands - All amps - NOS/USA/Current Production Tubes. Recycled (previously played), Generic (best value), PRIMO (most popular) and ULTIMO (best sounding) tube sets for every budget.

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Guitar Amp Tubes Sets
  
PRIMO TUBE SETS

We search the world over for vacuum tubes sets which we classify as PRIMO. They are value-priced (they don’t cost a small fortune) and make you and your amp sound great.

We choose many tubes from the 1940’s to the present. Some tubes may have been hidden away for years in old warehouses, military bunkers, storage sheds or grandpa’s attic and some may be bulk purchases from current production (EHX, JJ, Sovtek, Svetlana, Mullard Reissue, Tung Sol, etc). They come from Russia, Europe, Asia, and the good ole USA. Recent great finds include Russian military (1960’s to 1980’s usually including 6V6/6N6C, 6L6GC/5881 equivalents, and 6BQ5/EL84/6P14P equivalents, etc). When they get into our tube lab, they are quality tested on Hickok 539B or 580 or Maxi-Matcher® tube testers for gain, life test, shorts and physical appearance. MATCHED TUBE SETS are matched first for manufacturer (tube code, not label) and then for gain/current draw. We often get tubes that are decades old it and it is hard to determine if they are New in the Box (NIB), New Old Stock (NOS), bulk lots sold without boxes, or replacement tubes with great life still left in them. Our extensive experience and comprehensive testing means we throw out a lot of old and new tubes if they test below minimum “NEW” reading on our calibrated tube testers or they don’t pass the LIFE TEST. You can be assured that all the tubes we sell are tested to new or better according to manufacturer standards.

We don’t specify the specific brands sold in PRIMO Tube sets for any particular auction since we want to give you the BEST VALUE for the price. We do have general brand guidelines we try to follow when inventory is available for specific tubes numbers and these brands are shown in the table below. With over 7,500 satisfied customers on EBAY, our quality control, selection criteria and value pricing have proven results, so we are confident that you will be pleased with your purchase.

For customers who want specific tube brands, these are often available as individual or matching tube sets.

We arrange all the tubes we sell into several classes to make it easier to find what you need when looking for specific tubes. The classes include:

Class Examples

RECIFIERS: 5AR4/GZ34, 5U4, 5V4, 5Y3, 5Z3, 6CA4/EZ81, 6X4, 6X5, 12X4, 35W4, 35Z5, 0A2, 0B2, 0C3

PREAMPS: 6AN8, 6AT6, 6AU6, 6BA6, 6BJ7, 6C10, 6C4, 6BL8, 6CX8, 6EU7, 6J5, 6J7, 6K11, 6SC7, 6SH7, 6SJ7, 6SL7, 6SN7, 6SQ7, 6U10, 6V4, 12BH7, 12AT7, 12AX7, 12AU7, 12AY7, 12DW7/7247/ECC832, 6973/6CZ5, 7199, 6267/EF86, 12AU6

POWER TUBES: 6AQ5, 6BQ5/EL84, 6K6, 6L6GC/5881, 6V6, 6CA7/EL34, 6550/KT-88, 7591/S,7027, 6BM8, KT-77, 6GW8/ECL86

RF Amp Drivers: 6CL6, 6GK6, 12BY7, 5763, 6360

Power Amps: 6146/A/B/W, 6JB6, 6JM6, 6KD6, 6JS6C, 6LQ6/6MJ6/6JE6, 6LB6, 6LF6, 8950, 2E26, 6883, 8298/A, 572B, 807, 811A, 813, 1625, 4CX250B

Note: We have RF power tubes for most ham equipment manufacturers including Ameritron, Collins, Drake, Galaxy, Hallicrafters, Heath, Johnson, Kenwood, Knight, Maco, National, Palomar, Swan and Yaesu. We source the following brands/manufacturers:

AUDIO PREAMP TUBES

Tube Brands 6AU6, 6BA6, 6C4, 6CG7/6FQ7, 6DR7, 6EU7, 6J5,6J7, 6K11, 6SC7,6SK7,6SJ7,6SN7 USA 6C10 USA/Foreign 12AT7/ECC81 USA, JJ 12AU7/ECC82 USA 12AV7 USA 12AX7/ECC83 JJ, SOV, SVET, EHX, SINO, TUNG 12AX7/ECC83 MULL, USA 12AY7/6072 EHX,USA 12AZ7,12BH7 USA 56,57 USA 5879 USA 6267/EF86 USA/Foreign 6922 JJ,EHX,SOV 7199 USA,SOV 7247/12DW7 USA,JJ

AUDIO POWER AMP TUBES Tube Brands 6AQ5, 6BM8 USA 6GW8/ECL86 USA/Foreign 6K6 USA 6L6GC/6L6WXT RUBY,SOV,JJ 6V6/6N6C USA,Russian 50C5 USA 300B EHX,VA,JJ 6550 VA,EHX,SOV,SVET,TUNG 7027 JJ,SOV 7591 JJ,SOV EL84/6BQ5 VA,SOV,JJ EL34/6CA7 VA,EHX,JJ,MULL KT66 SOV KT77 JJ KT88 VA,SOV,EHX

RECTIFIER/REGULATOR TUBES Tube Brands 0A2,0A3,0B2 USA 0C3 USA,Foreign 5AR4/GZ34 JJ,SOV 5R4,5U4,5V4,5Y3,5Z3 USA 6CA4/EZ81 USA,Foreign 6X4/12X4, 35W4 USA

RF DRIVER TUBES Tube Brands 5763, 6360, 6CL6, 6GK6, 12BY7 USA

RF POWER AMP TUBES Tube Brands 6GE5, 6HF5, 6JB6, 6JM6, 6JS6, 6KD6, 6LB6, 6LF6, 6LR6, 6LQ6/6JE6, 12JB6, 12JN6 USA/JAPAN 811A SINO,USA 6146/6146A, 6146B, 6146W USA

Abbreviations: EHX Electro Harmonix JJ JJ Tubes MULL Mullard Reissue RUBY Ruby Tubes Russian Russian Military SINO Made in China/Shuguang SOV Sovtek SVET Svetlana TUNG Tung Sol USA Made in USA VA Valve Art Foreign Europe Made

PRIMO Tube sets usually DO NOT INCLUDE manufacturers such as Genalex, Telefunken, Mullard, Phillips, Valco and other high priced tubes.

In order to offer the best prices for our customers, we may substitute high quality equivalent tubes. Check Store pages to see a cross reference table of equivalent tubes that are equal or better in performance than the original tubes.

NOTE: WE HAVE MANY SETS OF THESE TUBES AND THE ONES YOU RECEIVE MAY NOT BE IN THE SAME BOXES OR BE THE SAME MANUFACTURERS AS ILLUSTRATED IN THE AUCTION PICTURE, BUT THEY HAVE ALL BEEN TESTED TO THE HIGHEST STANDARDS ON OUR TUBE TESTER. EQUIVALENT PERFORMANCE RESULTS IN YOUR TUBE TESTER OR IN YOUR AMPLIFIER CANNOT BE GUARANTEED DUE TO VARIATIONS IN EQUIPMENT AND CALIBRATION BEYOND OUR CONTROL. WE USE PROCOMM, EI AND WESTINGHOUSE TUBE BOXES FOR ILLUSTRATION OF THE TUBES IN AN AUCTION TUBE SET ONLY!