-40%
Sylvania Gold Pin 6201 12AT7 tube. AT1000 Test 114%/112% gm. 1958
Sylvania Gold Pin 6201 12AT7 tube. AT1000 Test 114%/112% gm. 1958
Sylvania Gold Pin 6201 12AT7 tube. AT1000 Test 114%/112% gm. 1958
Sylvania Gold Pin 6201 12AT7 tube. AT1000 Test 114%/112% gm. 1958
Sylvania Gold Pin 6201 12AT7 tube. AT1000 Test 114%/112% gm. 1958
Sylvania Gold Pin 6201 12AT7 tube. AT1000 Test 114%/112% gm. 1958
Sylvania Gold Pin 6201 12AT7 tube. AT1000 Test 114%/112% gm. 1958
Sylvania Gold Pin 6201 12AT7 tube. AT1000 Test 114%/112% gm. 1958
Sylvania Gold Pin 6201 12AT7 tube. AT1000 Test 114%/112% gm. 1958
Sylvania Gold Pin 6201 12AT7 tube. AT1000 Test 114%/112% gm. 1958

Sylvania Gold Pin 6201 12AT7 tube. AT1000 Test 114%/112% gm. 1958

$ 10.04

  • Brand: SYLVANIA
  • Country/Region of Manufacture: United States
  • Model: Gold Pin 6201 tube
  • Seller Notes: “Tests above new tube specs.”
  • Type: Preamp Tubes

Description

The tube only has the 6201 label. Made in the 35th week 1958. Batch JCZ Before testing the heater was on for at least 2 minutes and plate voltage was applied for at least on minute. Also checked for shorts, noise, gas, heater cathode leakage, and microphonics. Tube tester was set to Fixed Bias mode. The Transconductance spec for a new tube is 5500 mhos at 250 plate volts. Amplitrex AT1000 results. Tube Emissions % GM % mhos 6201 116/116 114/112 6300/6200 Domestic purchases can be combined to reduce shipping costs. International shipping will be through eBay Global shipping Program. Items usually ship the day after payment is received.