HISTORY:
Many moons ago I had the pleasure of working on a few Australian radiograms for personal enjoyment. Not high technology for sure but extremely nostalgic!
Over time, one by one, the radiograms found new homes but one was left behind with me due to some "cosmetic issues" - the ugly duckling of the radiograms
In the end it became an "organ donor" so that other radiogram's could live another day ... this is one of those parts I extracted
MANUFACTURER UNIDENTIFIED - Large Front Panel Knob
Material: Black plastic with a topside brushed Aluminium insert
Fitting: round 1/4" shaft with a flat spot, often called a D shaft
Friction fit, there are no grubs screws used
It has been yonks and I did not record the radiogram details properly but this came from EITHER an HMV or KREISLER, these knobs would have been sourced from a 3rd party manufacturer, I have no idea who that may have been.
Here are a couple of examples of those radiograms, showing the knobs
Part # E20.7271 (stamped into the underside of the knob)
Panel Control knob (see dimensions below)
Black plastic side ribbed body
Very long shaft
Top side is an Aluminium based disc of metal, possibly removeable although I have not tried. Why you might want to do this is explained below under "COSMETIC CONDITION"
DIMENSIONS:
Diameter (top section) 34.50mm
Height (top section only) 11.50mm
Thickness (top section only) 2.70mm (this makes the knob very strong)
Shaft length 20mm
Shaft OD 10.50mm
COSMETIC CONDITION
USED equipment "pull"
CLEAN
NO plastic cracks or other physical damage
NO top side scratching or dents
HOWEVER ... let's talk a little about the Aluminium metal disc in the top
Light spot tarnishing can be seen, the effect is something like if you imagine a metal with an all-over gloss finish but then little areas of gloss have gone and there is a dullness which creates something like a "non-shiny" or dirty spot. Our technicians used to call this Aluminium "rot" as they saw exactly the same thing with some lovely old Technics SP1 turntables. After many many hours of polishing up the Aluminium, they did manage to restore the finish but I am not about to do that with these knobs!
They don't look "terrible" but you can see the small dull areas I am talking about, on EVERY knob I have available.
I have TWO knobs with a very short Black pointer line and the remaining three knobs have no pointer at all. This Black pointer mark has either been direct printed onto the Aluminium or they used a very shallow indent which was then infilled with Black - in either case, it looks delicate so don't try to clean too aggressively around these pointer lines.
I have now placed each knob into individual sealed packets, ready to breath life into another radiogram!
*** Where the photograph shows multiple knobs, this advertisement price is for ONE knob only - not all that are shown ***
