UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Edward Huggins · 18th Nov 2017, 9:17 pm

Your version is the BBH. The valve is a ECC83. There were 2 versions of this model. The earlier 1954 model has the EL42s triode connected, in the later 1955 version they are ultra-linear configured with a slightly more powerful output. Given this, there is a difference in the OPTX.

18th Nov 2017, 9:17 pm	#6
Edward Huggins Dekatron Join Date: Sep 2015 Location: Southwold, Suffolk, UK. Posts: 8,328	Re: Pye Black Box Restoration Your version is the BBH. The valve is a ECC83. There were 2 versions of this model. The earlier 1954 model has the EL42s triode connected, in the later 1955 version they are ultra-linear configured with a slightly more powerful output. Given this, there is a difference in the OPTX. __________________ Edward.