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Old 18th May 2019, 7:53 pm   #19
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,147
Default Re: Murphy V310 1957.

Getting a picture was the easy bit. It was time to clean up the attractive cabinet and buff up the Bakelite.

Two blocks of wood that held the shell together had come adrift. The glue had literally dried out but a squirt of PVA glue and some cramps soon put that right.

The loudspeaker and lid assembly was removed for cleaning. Being positioned upright the speaker was full of dust balls and the small speaker cloth was clogged. This was soon cleared up with the vacuum cleaner and a little work with Brasso soon returned it to it's 1957 condition. The control knobs were soaked in hot water with a little Fairy Liquid and with the aid of a nailbrush were brought up nice and clean.

There was dust and a slight bloom between the implosion protection glass and the face of the CRM172 CRT. This involved removing the front Bakelite surround together with rubber mask and toughened glass. Just four screws plus a time consuming fiddle to get all the 'smuts' clear of the mask and glass...

Just a few caps to be replaced as a precaution against failure in the audio stages and all looks good.

There is incredible gain resulting in the BBC preset gain control being set only a third on and the contrast just a quarter. Advancing either turns the picture completely negative. This is a standard service area model and must have given a good account of itself in difficult areas. The full fringe model the V310A must have been a difficult act to follow when it comes to fringe reception.

The tuner has coils fitted for Channels 1, 4 and 8.
Picture 3 shows the result when you advance the contrast and gain controls 'over the top'.

When the wood glue has hardened I will post the final pictures.
Regards, John.
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Last edited by Heatercathodeshort; 18th May 2019 at 8:01 pm.
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