Hi All,

Just wondering if anyone has one of these in their collection or knows much about them? I believe the year of manufacture was 1970. I can't find much information online, with most photos etc being of the model without the alarm clock, the MM2.

Any information, advice or links will be much appreciated.

Cheers

According to Radiomuseum the RS300 uses the MM2 circuit, of course without the clock circuitry.
Kevin Chant has the circuit for this which should be a start:

https://www.kevinchant.com/uploads/7/1/0/8/7108231/mm2.pdf

Hi STC830,

Much appreciated! I just got one given to me which is is great condition (RS300). I cant find much information on them except for on Radiomuseum.

Thinking there must me more around the place. Would love to get an idea of if they are sought after and possible value.

It is a nice unit and kind of unique with the alarm clock on the side and all.

Thanks

Would love to get an idea of if they are sought after and possible value

Sought after? Not that I know of. Value? Anyone's guess. Vintage radio is a buyer's market. Value depends on what a buyer is prepared to pay you on the day that you must sell it. Sometimes there are no buyers and they become giveaways.

Some collectors are not interested in transistor sets.

With such old clock radios it's not uncommon to find that the radio works but the clock doesn't.

Hi GTC,

Very true. I suppose I was just surprised that there wasn't more of them on line as well as more pics, information etc.

I am yet to pick up but looks to be in good condition. I believe it will require some work to get all working.

I appreciate your comment... thanks.

According to Radiomuseum, the RS300 is a variation on the earlier model MM2. I have downloaded part of the technical manual for the MM2 which may be close enough to what you have to be useful. If you unhide your email address (via Control Panel) I'll send you what I have.

I can't get all of the pages today because there is a 3 page per day download limit. I'll get the rest tomorrow.

Thanks GTC, I have changed my settings to show email address. Really appreciate this... thanks.

OK, I have sent you 6 messages each with a one page PDF attached.

My outgoing emails have been a problem lately, so if you don't get them let me know.

Awesome!... thanks.

Just an update... I picked up the RS300 with the understanding that it though is in pristine condition it still required repairs to get working. I got home, plugged it in and it works fine. A great score for free, sound is really good and all.

Is a really tidy piece.

Did you receive the service manual pages? Thnaks to my hopeless ISP, I can't rely on my outgoing emails at the moment.

Hi GTC,

I just checked emails and it does not look like I have received. I feel your struggle, our emails and internet can be the same. Thanks for trying.

OK, I've resent them. Let me know asap if you still haven't received them and I'll try and alternative method.

Hi GTC, I just checked and have received. Thanks... much appreciated.

My pleasure, and thanks for the confirmation. My current ISP is going out of its way to make me dump it in the near future.