I have three matched quads of Mullard/Philips EL50. These were apparently made by Philips and badged Mullard in UK. For photo and details, see EL50 @ The National Valve Museum
These have the P type base, are ST shape and have a top cap. Very nice tubes indeed. These are listed for €48 each on the following site:
Audio valves / Power penthodes / Vacuum tubes for restauration or creation | Tubesworld
I'd be interested in offers - I also have some more. Not that I'm currently listing a matched quad + extra pair of Philips Mullard EL39 on www.ebay.co.uk - these are 6 absolutely superb tubes and very collectible.
These have the P type base, are ST shape and have a top cap. Very nice tubes indeed. These are listed for €48 each on the following site:
Audio valves / Power penthodes / Vacuum tubes for restauration or creation | Tubesworld
I'd be interested in offers - I also have some more. Not that I'm currently listing a matched quad + extra pair of Philips Mullard EL39 on www.ebay.co.uk - these are 6 absolutely superb tubes and very collectible.
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