Hi All,

Im after a service manual for the above unit or a Garrard AT6 Mk2 A record player.

I found this gem in a recycle center and it still works!!! Even had the original wiring schematic, mic (which works) with it,
but the record player has no stylus and the rubber mat that the record rest on has "shrunk" lifting on one side.
Oh One tube looks to be burnt out. ( lots of black inside. doesnt look like the magic smoke came out tho).

does anyone know how to fix this? And can I please get some help as to where I can get a stylis to suit

Black inside a valve is no indication of its failure. Some 6V6 valves are carbon black inside.

The actual rotating drum that the matt sits on is a platter.

There is a "soundring" or something like that in Sydney I think.... someone will know. They may be of help?

Marc

Hi Madden,

Try www.soundring.com.au.

May be able to help, or point you in the right direction.

Cheers, Graham...

Thanks Marc & Graham

Ill give it a go

Cheers Rick

Colour 'coding' on valves can be confusing for newer collectors, understandably.

I've generally found some valves to be dark, as Marc said the 6V6GT was sometimes blackened though this is usually on the sides with the glass at the top left clear.

Some valves may have a chrome look on top of the glass - this is a chemical treatment carried out after the valve is sealed. The chemical is released to absorb any remaining gases that may otherwise shorten the life of the heater or reduce the efficiency of the valve. The chamber holding the chemical is called a getter.

If the glass has a white substance inside the glass in some random pattern this is more likely to mean the valve may be stuffed - either the heater has carked it or a shirt has occurred between the heater and the cathode. Some valves are more prone to this by their design than others.

Im after a service manual for the above unit

I don't have a service manual, but I do have the circuit schematic and parts list, which includes a dial restringing diagram.

If you unhide your email address in your profile, I'll send it to you.

Circuit is dated 1964. Original cartridge is Sonotone 9TA, with stylus 9TA SD (diamond).

If it's in good order that amplifier ought to have plenty of power.

Interesting: Sonotone is BSR

Marc

Didn't they put magnesium in a valve and after it was sealed, place it in a coil and zap it with high frequency until the the magnesium ignited? Was this how they got the vacuum? I was told/read this when I was school kid.
How do they make valves?

Here's one way...

http://vintage-radio.com.au/default.asp?t=94.

Thanks Guys!

The valve that I thought was blown wasn't. It was a little bit of burning from a wire that came from a transformer. It must have been touching in the past.

All fixed now!!
Email address un-hiden

Cheers

Rick

Okay, schematic and notes sent.

The vacuum was achieved with a pump. The getter cleaned up any oxide left.

Marc

Thanks GTC