This is one of the gems I pulled out of the shed clearance in canberra over the last two weeks. There is no cabinet available so I am thinking about restoring the chassis and procuring a new smaller cabinet to put this baby in. I already have a lovely Kellog speaker cabinet which has been nicely refinished.
I have a nice 15 inch speaker which I might put into that cabinet.
The chassis has the vertical rectangular dial ( in good condition ) and 6v6 push pull output .

I noticed that chassis in the photos. I have one of these, though it is not here in Sydney. At the moment it is in storage because I have no room for it. This model (not sure of the model number) once featured in Radio Waves as "An instrument of rare distinction". I've restored my chassis but it had developed an intermittent fault that stopped the sound - most likely a dud output valve as when tapping the suspect valve with a screwdriver "fixed" the problem. I will fix it properly when it is next in my hands.

If my memory serves me correctly, there is an external speaker transformer that mounts under the record turntable in a pressed metal box. The whole radiogram weighs a tonne and is well made. There are several shortwave bands on this model. and plenty of volume.

The whole machine looks like the one in the eighth photo on the linked page:-

http://www.thebakeliteradio.com/page8/page8.html

Brad according to radiomuseum this set needs a field coil! Is that correct? I havent really had a indepth look.

Having had 5 minutes to look under the chassis I noticed it has a massive speaker tranny and choke under there. So I'm pretty happy with that.

Next time I am close to my unit I will take a photo of what's under the turntable. There is either one or two of the pressed metal boxes. I can't remember now.

AWA 805GZ is a ten valver:

6U7G, 6J8GA, 6G8G, 6SJ7, 6SJ7GT, 6J5GT, 2*6V6GT, 5Y3GT, Y61/3

It is written up in HRSA 1/95 which I can look up if needed.

STC830 I wouldn't mind a scan of that if possible. Or I might find a back issue.

I'll see what turns up.

803GZ is not in aorsm as far as I can see but 805GZ is 1949. It is showing two smoothing coils, which tends to indicate two chokes; with no nomenclature indicating a field coil speaker.

There is an article in Radio Waves Jan 1995 AWA (Fisk) Radiola, on Seven Band Receivers which has 805G circuit.
Also Oct 1996, an article on restoration of an 805G again with a circuit and an alignment table which should come in handy as there are 23 adjustments.

You might be pleased to know that, if your radio is indeed the 805G, according to the author Ian Long, the radio is An Instrument of Rare Distinction.

The whole machine looks like the one in the eighth photo on the linked page

That's a heck of a solid unit: http://www.thebakeliteradio.com/page8/files/awagram.jpg

The real AWA service data sheet pdf, with voltages etc is on Kevin Chants site. That's all you need.

Go forth & download.

Marc

I'm hoping to see this radio tomorrow evening.

Saw this radio, it's just the chassis, no enormous cabinet. Large speaker transformer mounted underneath, along with what looks like a field coil in a metal compartment - we suppose it's the choke. Someone's already replaced all the resistors at least, although working on it could be a nightmare - there's a huge amount of stuff for the different wave bands.

The 5Y3 was missing, yet to be determined if there's a reason.

Several decades have proven that It is one thing to speculate, however, If parts have been changed then alarm bells should ringing. The major reason for a set to be taken out of service is due to it breaking down. Often with new work, its been got at by some Monkey who exceeded their level of incompetence and flipped it to save face, or it ended up in the back corner of the shed & the cabinet was re-purposed as a bookshelf. I was given a cabinet like that a few weeks back.

The rectifier tubes #80 / 5Y3 are the most vulnerable. If the set has been abandoned and the electrolytic caps have deteriorated (as they do); Then when someone with uncontrolled exuberance plugs it in to see if it all works the rectifier & transformer are in peril. I know this from the number I have had to do extra repairs on, or trash.

The other cause is running #80 / 5Y3 sideways. That can only be done in one position. Basically you have a ribbon filament in something akin to an air conditioner duct: The filament sags; Hits, or gets too close to the plate & all hell breaks loose.

This is why my first step is assessment. There are two vintage mains radio's on the bench and these are part of a long line of mains & battery sets which were never powered until such time as they had extensive work & testing to render them safe, or declared non repairable.

Do look before you leap. "Caveat Actor" always applies; Injury covers both the doer and catastrophic damage to the device.

N.B. One of the Russian 5Y3's has been "ruggedised", has a cathode sleeve and a massive tubular filament and plates more like 6X4; there is no surge as such, as it behaves like a heater rectifier.