03-05-2021, 06:12 PM
Hi Folks, why not go to the PCC84 as used in TV, it was a good reliable valve and seems to have had less problems than the ECC85, which got a bit of a bad name.
You could also go further and look at the UHF tuner valves PC86/88/97/900. Slightly odd heater voltages and only single valves but most electrodes are double pinned on the base for low inductance.
Also plenty around and really cheap
Ed
You could also go further and look at the UHF tuner valves PC86/88/97/900. Slightly odd heater voltages and only single valves but most electrodes are double pinned on the base for low inductance.
Also plenty around and really cheap
Ed







