UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Mullard 3-3 information required

Ed_Dinning · 21st Mar 2012, 10:52 pm

Hi Neil, the 3-3 was a vey neat design, Mullard in their original article did not skimp on the chassis size, but it could be made much more compact. Note that is was originally used with speakers that were much more sensitive than thaose of today, so apparently much louder.
It was designed by Mullard as a marketing tool to sell their EF86/EL84/EZ80 valves; there is no reason at all that it cannot be built using octals that have similar characteristics (some research needed in the valve data books).
As ever with an amp like this a lot is down to the op trans.

Ed

21st Mar 2012, 10:52 pm	#24
Ed_Dinning Dekatron Join Date: Jan 2004 Location: Newcastle upon Tyne, Tyne & Wear, UK. Posts: 8,194	Re: Mullard 3-3 information required Hi Neil, the 3-3 was a vey neat design, Mullard in their original article did not skimp on the chassis size, but it could be made much more compact. Note that is was originally used with speakers that were much more sensitive than thaose of today, so apparently much louder. It was designed by Mullard as a marketing tool to sell their EF86/EL84/EZ80 valves; there is no reason at all that it cannot be built using octals that have similar characteristics (some research needed in the valve data books). As ever with an amp like this a lot is down to the op trans. Ed