Complete set of 19 tubes for a Heathkit SB-102 ham transceiver. All are tested and exceed acceptable specs as noted below.The tubes were all pulled from a Heathkit SB-102 and have been tested for leakage/ shorts and mutual conductance on a Hickok 752 tube tester. Most of the tubes are newer and National brand. The Tubes that were in the SB-102 had mostly all been recently replaced. A few of the original tubes are included and are denoted below.Qty 2 6146BQty 2 12AT7 / ECC81 (1 is a National, 1 is an RCA and triode one section of the RCA tests weak; this is the only marginal tube in the lot)12AU7A / ECC82 6HS6 RCAQty 4 6EA8, 3 National, 1 International6BN86CL6OA26GW8 (Raytheon)Qty 4 6AU6A, 3 National, 1 GE6CB6 Tubes are tested on a Mutual Conductance Tube Tester and GUARANTEED WORKING. Tubes are NOT returnable. If one is found not acceptable, I will refund 1/19th of the cost for each one that is bad. However, all tubes have been tested and are known to be good. Tubes are tested for Shorts and tested for Mutual Conductance, (Gm). Powered by SixBits eCommerce Solution

Vintage Sylvania 5U4GB 5AS4A Rectifier Tube - Hickok 752 tests @ 750/725 Min:650. Made in USA. Open box only removed for testing. Due to the high cost of shipping and handling, these are sold as is and I do not accept returns. Any return for any reason will incur a minimum restocking fee of 25%. Please check my feedback and buy with confidence. There are no returns on vacuum tubes so please do your homework and make sure these are the tubes you want. These will be professionally packed and shipped safely. Thanks for looking.

Vintage Matched Pair GE 6SN7GTB Vacuum Tube - Hickok 752 tests @ 525/525 Min:400 Made in USA. Open box only removed for testing. Both tubes test 525/525. Date codes also match. Due to the high cost of shipping and handling, these are sold as is and I do not accept returns. Any return for any reason will incur a minimum restocking fee of 25%. Please check my feedback and buy with confidence. There are no returns on vacuum tubes so please do your homework and make sure these are the tubes you want. These will be professionally packed and shipped safely. Thanks for looking and please check my other listings.

Pair used RCA 866A / VT-46-A rectifiers, both test good on Hickok 752A. In original cartons with one original data sheet.

Mullard made for Heathkit Daystrom 12AU7A / ECC82 tubeMullard K61 B8D codes on them (as best I can read). Also has the following numbers on the tube:8501022 Made in Great Britain Tubes are tested on a Hickok 752A Mutual Conductance Tube Tester and GUARANTEED WORKING. Tubes are tested for Shorts, Gas, and each Triode section tested for Mutual Conductance, (Gm) Tubes will be in individual zip lock bags and have a sticker attached to each upon receipt which will easily peel off and leave no residue. Gm=675 minimum to pass per the Hickok tube chart.Tube tester readings as follows: Tube Made by Mullard. Triode 1 Gm= 2600; Triode 2 Gm= 2650. Tube was in a vintage Heathkit Oscilloscope Electronic Switch with low hours on it. Powered by SixBits eCommerce Solution

Lot of Two Mullard made for Heathkit Daystrom 12AX7A / ECC83 tubesBoth have Mullard I61 codes on them. Made in Great Britain Tubes are tested on a Hickok 752A Mutual Conductance Tube Tester and GUARANTEED WORKING. Tubes are tested for Shorts, Gas, and each Triode section tested for Mutual Conductance, (Gm) Tubes will be in individual zip lock bags and have a sticker attached to each upon receipt which will easily peel off and leave no residue. Gm=200 minimum to pass per the Hickok tube chart.Tube tester readings as follows: Tube #1 Made by Mullard. Triode 1 Gm= 1460; Triode 2 Gm= 1360. Tube #2 Made by Mullard. Triode 1 Gm= 1280; Triode 2 Gm= 1240. Tubes were in Push-Pull service, in a vintage Heathkit Oscilloscope Electronic Switch with low hours on it. Powered by SixBits eCommerce Solution

Vintage Pair GE 6SN7GTB Vacuum Tube - Hickok 752 tests @ 485/470 425/425 Min:400 Made in USA. Date codes also match. Due to the high cost of shipping and handling, these are sold as is and I do not accept returns. Any return for any reason will incur a minimum restocking fee of 25%. Please check my feedback and buy with confidence. There are no returns on vacuum tubes so please do your homework and make sure these are the tubes you want. These will be professionally packed and shipped safely. Thanks for looking and please check my other listings.