Matched Pair New Old Stock Special Quality Miniwatt Philips Holland E182CC Tubes
Manufacturing / Date Codes: 
1) 1D3 over ∆7D1
2) 1D3 over ∆4A3
Test Results:
1) GM1 = 17,500, GM2 = 17,000
2) GM1 = 16,500, GM2 = 16,500
Hickok Minimum = 7000 / 7000