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g4aaw pete · 20th May 2022, 2:11 pm

Before I consider opening up this component & possibly destroying it, does anyone here have any knowledge of it?

Printed label reads 'quartz crystal controlled transistor oscillator type QC.93?, Frequency 1.5Mc/s made by Salford Elec.Insts.Ltd.'

It has a B9a valve base.
It was in a box of bits, so don't know what equipment it came from.

20th May 2022, 2:11 pm	#1
g4aaw pete Heptode Join Date: Jan 2008 Location: Birchington Kent, UK. Posts: 596	Unknown transistor osc. Before I consider opening up this component & possibly destroying it, does anyone here have any knowledge of it? Printed label reads 'quartz crystal controlled transistor oscillator type QC.93?, Frequency 1.5Mc/s made by Salford Elec.Insts.Ltd.' It has a B9a valve base. It was in a box of bits, so don't know what equipment it came from. Attached Thumbnails __________________ Regards Pete Last edited by g4aaw pete; 20th May 2022 at 2:17 pm. Reason: extra info.