27-03-2021, 04:32 PM
(This post was last modified: 27-03-2021, 04:36 PM by Geordie McBoyne.)
The Invicta T105 is a development of the Pye B16T. The model shown here is a TRF receiver fix tuned to channel B2. Like the B16T the RF amplifier valves are EF50s which at the time the set was made a valve being replaced by the EF42 or EF91. The double-diodes are EB41s.
The EHT is derived from the flyback pulse. The line output stage has a damper diode, a Mullard PY31.
The set works, or it did when it was acquired in the summer of 2017, I haven't bothered to do anything with it since then. The main component that is missing is the cabinet, the previous owner chopped up the cabinet because of woodworm damage. Should be easy enough to make a new cabinet for this set.
I'll introduce the set into the forum as a separate topic.
Geordie McBoyne.
The EHT is derived from the flyback pulse. The line output stage has a damper diode, a Mullard PY31.
The set works, or it did when it was acquired in the summer of 2017, I haven't bothered to do anything with it since then. The main component that is missing is the cabinet, the previous owner chopped up the cabinet because of woodworm damage. Should be easy enough to make a new cabinet for this set.
I'll introduce the set into the forum as a separate topic.
Geordie McBoyne.
