Hello all
I’ve recently purchased these parts and I was wondering what type of aircraft they might of been in:
Thanks
(1)
SMITHS Bridge Amplifier Unit
Code: GB21
Ref. No.: 6A/100/10
Ser. No.: G/4896/66
Supply: 28v D.C.
MOD Inst A’461
Ferranti Inverter Unit Type F.1.17.A (attached to above Bridge unit)
Ref. 64/45100
Ser. No 860/66
Painted on the side of the Inverter Unit
FLM/M/10/66
SER No 860/66
(2)
Sangamo Weston Ltd 115v
C/S x 10
Goes between 30 and 50.
INSIDE GLASS ON FRONT:
6625-99-
100-3731
S109.6.73T
NO.AP.2057
RAF FORM 7218 Calibration Integrity Seal sticker on side.
07A240151 eteched on side.
(3)
Sangamo Weston Ltd 115v
C/S x 10
Goes between 30 and 50
INSIDE GLASS ON FRONT:
6625-99-
100-3731
S109.6.73J
NO.R016724
I.E.C/R/2/69 painted on side
BLAKE/45 handwritten on sticker in pencil
(4)
Weston P.S.I gauge
INSIDE GLASS ON FRONT:
S63.4.411
MOD.J
NO.RH17399
(5)
Sangamo Weston Ltd Milliamperes Gauge
Moving Coil
1947
J59896 painted on back
By: Comet102 - 3rd January 2018 at 23:01
Thank you both. Much appreciated.
By: ian_st - 3rd January 2018 at 12:03
The Smiths Bridge Amplifier is part of a fuel gauging system. I used to work for Smiths, but it is a long time ago, so my memory of these may be slightly out. I believe these were part of the “type 4” system which was fitted to many British aircraft in the 50s / 60s. There were variations of the amps to suit the particular installation, so without a reference it’s hard to pin this down to the type. If I was forced to guess, I’d suggest Jet Provost
By: Vega ECM - 2nd January 2018 at 22:26
The Ferranti invertor is a single phase output for a Weymouth gauge. It’s a civil version of a military original part. Part of a helicopter fuel system?
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January 2, 2018 at 5:27 pm