Re: Astor car radio

***probly not but this is for an EH so it's worth a try

"all valve TRF" now Trevor my friend, you just dated yourself with that one. One day in class my instructor held up a transistor and said "don't worry too much about these, they won't last". How's that for dating.

Thanks for your reply Gordon

It's been a while, but IIRC the model number will be stamped in the case, and will look something like the one I quoted.

I've got a good collection of circuits from the era, and earlier, and may be able to come up with something if you can can come up with a model.

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John H

**Probly was. I purchased my FC in 1973. I fitted the radio (which I bought from a wrecker) soon after. A heavy, push button affair, with (I think) an AD149 mounter on a corner. Excellent AM performance. When I sold the car (for $50.00) I wanted to pull the radio out, but the guy who purchased it, wouldn't buy the car without the radio. **Probly. A neighbour gave me a chassis with a 4 gang tuning cap and all the inductors. He then provided me with a New Zealand electronics mag, with the design of the thing within. All the hard work was done (chassis punching, etc). I just found a bunch of resistors, caps and valves and assembled it. It reached the point where I could easily tell which turntable the radio station was using (due, either to mis-alignment of the arm, or a worn stylus). **I ain't that old. One of my instructors was invloved in the design of the mighty GE-MOV KT-88 though. **Sorry I couldn't offer any concrete assistance.

Trevor Wilson

**Check the prices on those old Astor car radios here:

YIKES!

Trevor Wilson

S'all right, enjoyed the chat

Gordon

Thanks for your reply John H, the number F18117 is stamped into the case near the power transistors. They are Anodeon AT1138 and others are 2N406, 2N410B,

2N410E, 2N412, 2N591 and one I can't read which I think is an RF amp. Also, I believe the polarity to be neg earth. Some helpful Harry had connected it pos earth hence the need for a cct dia.

Gordon

that is gordon in front of welch at bigpond dot com

The model I quoted has AT1138's in push pull for the output stage but none of the others match. It's also a dual polarity set. The RF amp is AT313.

I don't have a date for it and there were a number of models available at the time. Without a model number I'd have considerable difficulty locating anything other than the one(s) I happen to remember.

Most of the vintage radio specialists (and many a good reference library) will have the original *Australian Radio Service Manual* I referred to (I'm a little surprised google couldn't find it) and are probably happy to sell copies of individual circuits. The original manuals (which I don't have) were issued by year, so they ought be able to track down the various models by the year of manufacture.

You don't say where you are but one source I have listed (and can recommend from past dealings) is Resurrection Radio at Prahran (Vic). The number I have is (03) 9510 4486. Might also be worth a google.

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John H

I

pos

Thank you John H for your help, you have given me a number of clues for which I'm most grateful. Google did turn up a source of the Australian Radio Service Manual but for $110. The local library is not big on electronics so I'll try the big smoke (Brisbane) soon.

Thanks again for your help

Gordon

It's actually the *Australian Official Radio Service Manual* (my earlier mistake) which may help if you're using a library (or google).

Most of my circuits from that era came from the SA Public Library back in the 1970's when I lived there. I'd guess most state public libraries would still have copies filed away somewhere.

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John H

Thanks John H, I've only done online searches and there's plenty of stuff in council and state libraries if you like cars etc. I guess a pickup of vintage radio is pretty low on the list. I'll do a run on the state library here in the next week or so.

All the best

Gordon

for

in

vintage

in the

You might also try the local TAFE library. Even if they cannot help, you can use the index system to find the location of any copies of what you are looking for.

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Regards,

Chas.

(To email me replace 'xxx' with tango papa golf)

Thanks Chas, didn't think about them.

Gordon