Hey there recently obtained a peterpan radiogram the amplifier it's self is in fairly good condition the
Capacitors aren't leaking etc
There is currently no radio but will play a record but only low volume
I've cleaned up all the connections between the turntable and the amp
But no change one thing I did notice the valves were getting really hot
One large valve next to the transformers which I can't identify due to faded markings has
A small amount of blue glowing around its anodes.
Pictures to come any ideas and information would be great

I did notice the valves were getting really hot. One large valve next to the transformers which I can't identify due to faded markings has
A small amount of blue glowing around its anodes.

The valve glowing blue will likely be the rectifier (5Y3). These sound like the classic symptoms of a short circuit the B+ supply making the valves work too hard -- especially so if the anodes are red.

Don't switch it on again unless you want to be up for a replacement of the power transformer (if you can even find one).

Do a re-cap.

Hey thanks for your message
I will start with the capacitors first one I've seen with the mustard capacitors and not the paper ones

If you unhide your email address (via Control Panel) I'll send you the model MR schematic. Not sure about the 1317 bit, but this should be useful.

That would be great !! Have changed my email privacy.
Thanks heaps

Okay, sent.

Pale blue around the outside of the anodes can also indicate its gassy. Red plates, definite issues.

And how pray tell did you determine that the capacitors were not leaking? There are two ways Electrolytics leak & one can destroy rectifiers & transformers. The only way that you can determine if a non polarised cap is leaking is to take it out of circuit & high voltage test it, with an insulation tester, or capacitor leakage tester. If it is a "waxed paper" type, it will be leaking: You just replace them, not waste time testing them.

The fact that the radio will not play and it has low volume says serious issues. Remove the chassis & photograph inside of the pan (in focus & sharp) so we can see what is in there.

An understanding of valves will reveal that rectifier & output valves put out more than enough heat to burn fingers & fry eggs.

As above, do not bother to turn it on again and the record changer / turntable is also going to need servicing.

Marc

The actual cost of replacing the capacitors is so negligible that it really is a waste of time testing them. Replace all the non mustard caps then and all associated resistors then test it through a variac if you have one .

There is only really the mustard caps in it.
When I said before there was no leaking caps I meant the paper ones that are there aren't leaking contents.

They may not be leaking their contents but believe us , They need to be replaced. The MICA caps probably wont need replacing.

the paper ones that are there aren't leaking contents

They are probably 50 years old or more. Paper caps use by date was decades ago, regardless of how they appear externally.

Also, any old electros are dynamite -- literally, as they can explode. The filter and reservoir caps in power supplies are notorious for destroying components and in the worst cases starting fires.

As a general principle, we would never even consider powering up such a set without having dealt with the caps (and resistors as necessary) and also looking for shorts, etc.

Thanks for all your comments I will email the pictures to be uploaded today. I am excited to get this one up and running properly . I have already started to replace the rubber insulated wires and have a list of the caps I need to get in town

If the radiogram really has Philips polyester ''mustard caps", those will probably be OK. I've heard that yellow Ducon polys are also reliable.