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Reviews Categories | Electron Tubes | DX Engineering GU74b/4CX800a Help


Reviews Summary for DX Engineering GU74b/4CX800a
DX Engineering GU74b/4CX800a Reviews: 1 Average rating: 5.0/5 MSRP: $350
Description: Quick Ship with 1 year warranty.
Product is in production.
More info: http://www.dxengineering.com
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You can write your own review of the DX Engineering GU74b/4CX800a.

KA4KOE Rating: 5/5 Feb 8, 2017 11:38 Send this review to a friend
Works  Time owned: 0 to 3 months
Obtaining good tubes of this type is always a gamble if you use some of the online auction houses or off-shore dealers. I prefer to deal with shops located in CONUS. As with all ceramic tubes, you need to getter them (heater voltage only + ventilation) for 24 hours. The tubes are for my QRO HF-2500DX amplifier. I am getting at least 1500W with 30W input on 80m.
 


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