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Marconi TF114

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Front view [34K]

  • Very late 50's or early 60's
  • Covers 10Kc/s to 72Mc/s in no fewer than 12 ranges ranges
  • 6 valves and maybe a couple of trannies.
NOTES Picture of screened valve screen (!) [7K]Yet another Marconi signal generator - for crying out load, just how many different once did they make ?

Still, they're all very well built and this one is no exception. All of the tuning components are mounted in their own seperate screened box - the box accounts for most of the volume of the unit. Valves mount onto the outside of the box and they too are well screened, not just by a metal shell but a metal shell with an additional knitted screen within.
SERVICE DATA Came with a photocopy of the manual, which will be scanned in due course.
CURRENT STATE Basically woking ; a lot of caps have been replaced and look like they've been done in the not too distant past - and neatly too. The big shame though is that the output attenuator section has been removed :-(
WHERE FOUND A donation from Chris.

Chassis view [30K]
The insides are dominated by a huge black box that contains the
passive components that are used in the tuned circuits. This level of
screening is essential when trying to maintain high levels of stability.

Page copyright
J.Evans 2005
Last updated
20th September 2005