1L6,1U4 x2, 1U5 and 3V4 used tube set for 1951~1964 H500 and all 600 series Zenith Trans-oceanic. The 50A1 voltage regulator tube for the 600 series not included. The tubes all test at 90% or better. The minimum good number is 68%. If you own a 1950 G500, let me know and I will substitute the correct 1S5 for the 1U5. If you prefer a new set, please check my other listings. I will properly package the tubes in a box for safe shipment and pay insured USPS postage with tracking number in the US. Same business day shipping. International shipment through US Postal Service International for actual postage cost and actual selling price stated on the customs declaration. 7 ounces packed for international shipment.