Various manufacturer

7C6

17.00 USD

Quality double diode triode tubes manufactured by various makers in the United States or Canada. These 8 pin loctal based glass tubes are designed as detector and high gain amplifiers for radio receivers, and come with black plates and top getters. They are glass etched 7C6 and have various makers markings. Boxes are standard manufacturers printed 7C6. Photo is trypical of available stock.

Condition

New Bulk
New Old Stock (New in box)
Used Tested

	Tube Matching 6.00 USD by tube
LEARN MORE WHY ? A tube may have one, two, or three internal sections depending on the purpose of the tube; somtimes these sections are all the same, sometimes they are different. Due to manufacturing and material tolerances, there may be slight differences between the original specification and the actual tube. Tube matching tests each one of these internal sections and selects tubes, compared to original specifications at manufacture, for balanced performance and good sound. HOW ? All our tubes are tested by us prior to packing on our Stark, AVO, Simpson or RF Laboratories Inc. calibrated testers. On request for tube matching, tubes are matched for Mutual Conductance in Micromhos and Plate Current in Milliamps on our Amplitrex or Radioelec Duovac testers, with results printed for each individual tube. Certain tubes difficult to test are matched for Mutual Conductance in Micromhos only on one of our regular calibrated testers. On request we can also test for Microphonics.