You are bidding for one Telefunken G73-R black coated specially designed for HP used for special purposes. They were made in Germany in 1960s. This type of tubes is deadly quiet with clear and clean sounds. They are quick, precise, dynamic and very harmonic. The tube was well tested good on TV-7D/U and Avo ct160 at 9mA and 10.5mA. All the tubes from us are give one-month warranty since the time of arrival. There are many rare tubes in stock. Please request to meet your needs. Please ask before bidding. There are many types of raretubes in stock. Matched pairs and matched quads are available. Thanks

P/S: The shipping service here is by Vietnam post taking 14-22 days depending on your local customs. For regions that Vietnam post is not available, I’ll use express services like DHL, FedEx or UPS express taking 3-7 working days. However you have to pay an extra for the fees and shipping insurance with track ($68 in total). Please request your shipping option if you need them urgently. Some locations to which Vietnam post is not available, I’ll use express services and buyer have to pay an extra of course. Thanks