UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

space_charged · 16th Jul 2019, 5:30 pm

Thanks Kevin.

Yes Sony kit had a "reputation" for very good kit and well designed. On the negative side, Sony designed their kit from the bottom up and often came up with unconventional designs. Philips were similar in that. If it was a Philips or a Sony you had to get the service sheet out and really study it to get anywhere with fault finding.

I've enjoyed the KV9000 and it does indeed produce a very nice crisp picture. The shadow mask on a Trinitron has the least obscuration of the electron beams of all the types, since it consists of vertical wires.

Shortly will do some electrical safety checks on the mains transformer. The set considers itself double insulated so safety depends on that being OK. As observed before, the set has been very wet and that includes the mains transformer. Not impossible just to run it from an external 12/24V supply or indeed replace the transformer but, if it checks out insulation wise, I'd like to use it.

16th Jul 2019, 5:30 pm	#4
space_charged Hexode Join Date: Dec 2014 Location: West Midlands, UK. Posts: 315	Re: Sony 2SD625 line output transistor Thanks Kevin. Yes Sony kit had a "reputation" for very good kit and well designed. On the negative side, Sony designed their kit from the bottom up and often came up with unconventional designs. Philips were similar in that. If it was a Philips or a Sony you had to get the service sheet out and really study it to get anywhere with fault finding. I've enjoyed the KV9000 and it does indeed produce a very nice crisp picture. The shadow mask on a Trinitron has the least obscuration of the electron beams of all the types, since it consists of vertical wires. Shortly will do some electrical safety checks on the mains transformer. The set considers itself double insulated so safety depends on that being OK. As observed before, the set has been very wet and that includes the mains transformer. Not impossible just to run it from an external 12/24V supply or indeed replace the transformer but, if it checks out insulation wise, I'd like to use it.