UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Hope to start an audio amp with CV415/CV4046/TT15

peter_sol · 11th Jul 2020, 6:54 am

Hi again Adrian.
My experience with the EF91 in the input stage was that you only had to go near them for them to ring or howl. Plenty of gain can be had from an ECC83 using a 100K anode load and 2.2K cathode resistor.

11th Jul 2020, 6:54 am	#20
peter_sol Octode Join Date: Aug 2003 Location: Welwyn Garden City, Herts. UK. Posts: 1,906	Re: Hope to start an audio amp with CV415/CV4046/TT15 Hi again Adrian. My experience with the EF91 in the input stage was that you only had to go near them for them to ring or howl. Plenty of gain can be had from an ECC83 using a 100K anode load and 2.2K cathode resistor.