2 Matched code Sylvania made Magnavox + 1 other Magnavox 6V6GT tubes. AT1000 tested, 98% 97% 86% gm Testing Notes:Heaters were on for at least 2 minutes before testingPlate voltage is applied for at least 1 minute before testing.Tube was checked for noise and microphonics One of the well known attributes of the Amplitrex is the sensitivity it has for gas testing. It is likely other tube testers will show no gas at all for these tubes. Amplitrex AT1000 results. New tube spec mhos is 4100 at 250V on the plate. Gas should be less than 4.5ma.Tube codemhos Emissions %GM % H-K uAGas mA312 8394050110980.4312 8394000100970.3?354076860.4 Acceptable practice with power tubes is to have the gas below 10% of plate current (45ma), which is 4.5ma. So these tubes are well within the good range. It is likely other tube testers will show no gas at all. Cleaning the tubes is being left to the buyer since often cleaning the tubes also removes labeling.Test results are written on the tubes. These can be easily removed with a moist paper towel. Domestic purchases can be combined to reduce shipping costs. Items usually ship the day after payment is received.

Magnavox 4 6V6GT 2 12ax7 / 5au4 Tube /Amplifier Model AMP 175-GH works perfect. Sounds clean /All Magnavox tube test strong Guaranteed no noise no hum

Auction for 1 Magnavox tube amplifier 185 6V6 pp .sold as is or parts only .Please take a look all pictures. I do this for living.I know How to packed.Maybe you will pay little Bid.But I m sure you will be more than happy to pay.You know why. Because u will receive your item in one piece. Shipping International 135.00. Buyer has to declare costume at your country.

2 Matched Magnavox (Sylvania Made) 6V6GT tubes. Smoked Chrome Top AT1000 tested @ 250V. Testing Notes:Heaters were on for at least 2 minutes before testingPlate voltage is applied for at least 1 minute before testing.Tube was checked for noise and microphonics One of the well known attributes of the Amplitrex is the sensitivity it has for gas testing. It is likely other tube testers will show no gas at all for these tubes. Amplitrex AT1000 results. New tube spec mhos is 4100 at 250V on the plate. Gas should be less than 4.5ma.Tubemhos Emissions %GM % H-K uAGas mA312 848 MVM43901141070.0312 848 MVM44501151080.2 Acceptable practice with power tubes is to have the gas below 10% of plate current (45ma), which is 4.5ma. So these tubes are well within the good range. It is likely other tube testers will show no gas at all. Cleaning the tubes is being left to the buyer since often cleaning the tubes also removes labeling.Test results are written on the tubes. These can be easily removed with a moist paper towel. Domestic purchases can be combined to reduce shipping costs. Items usually ship the day after payment is received.