USED
Ex various 1970's domestic valve receivers & radiogram front panels (usually sitting behind glass)
Oh yes, my wordee this is OLD technology but if ever you need to find these lilliput lamps with the special rubber boot, this could be quite a challenge. That's why I have always kept this type of component when the equipment went to the "operating table" (workshop) and underwent surgery to become an organ donor to give life to another piece of equipment.
Most commonly found sitting behind the front glass display panel in "radiograms" to provide backlighting
UNIDENTIFIED MANUFACTURER(S) - Incandescent Lamp With Flying Leads
I have a small number of these, all are identical (see the photograph) physically but two lamps have shorter leads than the others
A Black rubber boot is fitted to each lilliput lamp and this boot is removeable
The boot is used for mounting the lamp, having a small recessed "slot" for fitting onto a bracket
All lamps are 6.3V DC or AC operation
Light colour emitted: Yellowish/Golden Glow
Lead length varies from 120mm (2) to 200mm (2)
DIMENSIONS:
Lamp: 5.25mm diameter x 17mm length
Clear glass envelope
Rubber boot: 12.35mm length x 11.65 OD and the inside diameter is 4.45mm (lamp fitting end) or 9mm at the "viewing end"
TESTING:
Being old lamps, I have tested each that I have found ....
COLD DC resistance measured as 6 ~ 8 Ohm
Testing made at 6V DC, and ALL that I have light up nicely - a soft yellow glow and they do not get too hot!
The lamps are of course used, their remaining lifetime is completely unknown .... but at least today, they all lit up fine!
COSMETIC CONDITION:
USED
Ex domestic equipment such as HMV etc
CLEAN
I checked the integrity of the glass envelope/lead exit point (sometimes they can separate) - all good here.
Rubber boots have not degraded, soft (but not too soft) and pliable with no signs of the rubber disintegrating!
All leads are undamaged (fine multi-strand wire, PVC insulation)
Each lamp has now been individually packed into sealed clear plastic packets
